reaches the bottom in 1.50 seconds. How

deep was the well?

**Answer: 11 meters**

**Explanation: i'm rlly sorry if i am wrong**

To calculate the depth of the well, we can use the equation:

distance = 1/2 * acceleration due to gravity * time^2

Where distance is the depth of the well, acceleration due to gravity is 9.8 m/s^2, and time is the time it takes for the penny to fall to the bottom of the well.

Plugging in the given value of time = 1.5 seconds and acceleration due to gravity = 9.8 m/s^2.

Distance = 1/2 * 9.8 * (1.5)^2 = 11.55 meters

So the depth of the well is approximately 11.55 meters.

distance = 1/2 * acceleration due to gravity * time^2

Where distance is the depth of the well, acceleration due to gravity is 9.8 m/s^2, and time is the time it takes for the penny to fall to the bottom of the well.

Plugging in the given value of time = 1.5 seconds and acceleration due to gravity = 9.8 m/s^2.

Distance = 1/2 * 9.8 * (1.5)^2 = 11.55 meters

So the depth of the well is approximately 11.55 meters.

A hockey puck (0.50 kg) is in contact with the stick for 0.2 seconds. If the force on the hockey puck is 25 N, what is the change in speed of the hockey puck?

The change in **speed** of the **hockey** pack is 10m/s.

**Speed** refers to the rate of motion or action, specifically the magnitude of the velocity; the rate distance is traversed in a given time.

The **speed** of an object can be calculated using the following formula:

F = m × (v/t)

where;

"m" is the mass of the object"v" is the desired velocityt = timeAccording to this question, a **hockey** puck (0.50 kg) is in contact with the stick for 0.2 seconds. If the **force** on the **hockey** puck is 25 N, the speed can be calculated as follows:

25 = 0.5 × (v/0.2)

25 = 2.5v

v = 10m/s

Therefore, 10m/s is the change in the **speed** of the **hockey** pack.

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Elements are arranged in the periodic table based on various patterns. For example, the element magnesium (mg).

**Elements **are arranged in the **periodic table** based on various patterns. For example, the element magnesium (Mg) A. has a higher atomic mass than the element sodium (Na). Option C is correct.

The known elements are arranged in the **periodic table** in increasing atomic number order and repeating **chemical properties.**

They are arranged in a tabular fashion, with each row denoting a certain era and each column denoting a particular group.

The elements are arranged in ascending atomic number sequence from top to bottom and left to right.

**Elements **belonging to the **same group **will have similar chemical properties because they will have the same valence electron configuration.

The periodic table's arrangement of elements follows a number of different patterns. For instance, **sodium (Na)** and magnesium (Mg) both have** higher atomic masses **(Na).

As a result, choice C is accurate.

Your question is incomplete but most probably your full question was Elements are arranged in the periodic table based on various patterns. For example, the element magnesium (Mg) has

a. a higher atomic mass than the element calcium (Ca).

b. has a lower atomic mass than the element beryllium (Be).

c. has a higher atomic mass than the element sodium (Na).

d. all of these

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Please Help! Show all work, please! Thank you!

70!! points!

The **Kinetic** energy will be 19663 J that is approximately 2.0 × 10³ J option B.

An object or particle has kinetic energy because of its **motion**. When an item undergoes work—the transfer of energy—by being subjected to a net force, it accelerates and acquires kinetic energy. It's SI unit is Joules.

Given, mass of the car, m = 1400 kg

velocity of the car= 5.3 m/s

by applying the formula ,Kinetic **Energy** = 1/2×mass×velocity²

K.E. = 1/2×1400×(5.3)²

K.E = 700×28.09

K.E. = 19663 J ≈ 2.0 × 10³ J

The Kinetic energy will be 19663 J that is approximately 2.0 × 10³ J.

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after a day of testing race cars, you decide to take your own 1560 kg car onto the test track well moving down the track at 10 m/s. You suddenly accelerate to 27 m/s in eight seconds. What is the average net force that you have applied to the car during the eight second interval?

The **force **applied to the car of mass** 1560 kg** is **1365 N.**

**Force **is the product of **mass **and **acceleration**.

To calculate the **force **applied to the car, we use the formula below.

Formula:

F = m(v-u)/t............................ Equation 1Where:

F =From the question,

Given:

m = 1560 kgv = 27 m/su = 10 m/st = 8 sSubstitute these values into equation 1

F = 1560(27-10)/8F = 1560×7/8F = 1365 NHence, the **force **applied is **1365 N.**

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calculate the work done when a 50 kg object is lifted 5 meters. work energy theorem and coe w=fd

The image of your face will be located 66.5 cm behind the front **surface** of the Christmas tree ball.

Surface is the outer layer of a physical object, such as a planet or a star. It is also the top layer of an object, such as the ground or a body of water. Surface can refer to the interface between two objects, such as the **atmosphere** and the ocean, or the interface between two materials, such as the air and the ground. The term can also refer to the top layer of a material, such as the skin of a human or the bark of a tree. In some cases, surface can refer to the way a material or **object** looks or feels, such as the smoothness of a rock or the texture of a fabric.

This is because of the principles of spherical mirrors; the image is located twice the distance behind the mirror as the object is in front of it. Therefore, the distance between your face and the image of your face is 58.0 cm (29.0 cm + 66.5 cm). The answer is expressed to two significant figures, and the appropriate units are included.

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Explain why it is important to identify the health risks in your life

Knowing the **risks** you and your family may face can help you find ways to avoid **health problems**.

**Health risk** can be defined as the chance or likelihood that something will harm or otherwise affect your health.** health** risk is something that increases your chance of developing a **disease**.

The main health risk are :

Physical Activity and NutritionOverweight and ObesityTobaccoSubstance AbuseHIV/AIDSMental HealthInjury and ViolenceEnvironmental QualityTherefore knowing the risks and benefits of a **medical treatment** can help you and your doctor make informed decisions and It can also keep you from fretting over unlikely threats.

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Two asteroids in space are 67,000m apart. One of the asteroids has a mass of 34,000kg and the other has a mass of 15,000kg. What is the force between them. In order to earn all credit show all your work.

**Answer: The force between the two asteroids is ****2.25 x 10^-5 N.**** ✅**

**PLEASEEEE GIVE BRANLIEST **

**Explanation:**

The force between two objects in space can be calculated using the formula:

**F = G * (m1 * m2) / r^2**

Where:

**F = force between the two objects**

**G = gravitational constant (6.67 x 10^-11 Nm^2/kg^2)**

**m1 = mass of object 1**

**m2 = mass of object 2**

**r = distance between the two objects**

So, in this case:

**F = 6.67 x 10^-11 Nm^2/kg^2 * (34000 kg * 15000 kg) / (67000 m)^2**

To calculate the force between the two asteroids, we need to substitute the values for m1, m2, and r into the formula.

**F = 6.67 x 10^-11 Nm^2/kg^2 * (34000 kg * 15000 kg) / (67000 m)^2**

**F = (2.25 x 10^-5 N)**

So the force between the two asteroids is **2.25 x 10^-5 N.**

A workman carries some lumber up a staircase. The workman moves 9. 6 m vertically and 22 m horizontally. If the lumber weighs 45 n, how much work was done by the workman?.

The required **work **was done by the workman is 432 J.

Work is the energy exerted by an object as it applies a force to move another object over some **distance**. For a given amount of force, F, and a given distance, d, the work done on an object is given by the formula W=F⋅d .

We have,

Weight = Force due to **gravity **= -45j N

Total displacement = 22i + 9.6j Meter

Now,

Work done by gravity = -F.d = Work done by man

W = -45j(22i + 9.6j ) J

W = -45( 9.6) = -432 J

Thus, **work done **by man is **432 J**

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2. If a person pulls on a cart to the right with a force of 7 N and another person pulls to the left with a force of 13

N, what is the net force? Is it balanced or unbalanced? Label picture with direction arrows and numbers.

13N

a. net force =

b. Is it balanced or unbalanced?

C. How could the two people make their forces balanced?

7N

**Answer:**

1. Net force= 6 N to left

2. Unbalanced

3. Both people must apply same magnitude of forces in opposite direction which causes net force to be 0.

**Explanation:**

Since both forces have opposite direction then we have to subtract the magnitude and consider the direction of vector that has greatest magnitude. In this case, the left side (13N) has more magnitude than the right side (7N). Hence:

[tex] \displaystyle{ \sum \vec F = 13 \: \text{N}- 7\: \text{N}= 6 \: \text{N to left}}[/tex]

The vector arrow of net force will point to left side with magnitude of 6 N.

Since the net force is not zero. This means that the force is not balanced as an object still changes its motion from resting to moving. A balanced force would mean the net force is zero and an object will always remain as same condition. This can be referred to first Newton's law of motion.

We can make the force balanced by having both people acting same magnitude of force in opposite direction. The equation must result in:

[tex] \displaystyle{ \left | \vec F \right | = \left| - \vec F \right| }[/tex]

Magnitude of forces must equal for both sides and also have to act in opposite direction which causes net force to be zero:

[tex] \displaystyle{ \sum \vec F = 0}[/tex]

A 3.2 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 1.00 kg of water is raised 0.10°C? (Neglect the heat capacity of the rock.)

At the base of the cliff, a boulder falls into the water, transferring all of its **kinetic energy** to the ocean. The cliff must be 14.6 meters high.

Kinetic energy, which may be seen in the movement of an item or subatomic particle, has been the energy of motion. Example of **angular momentum** in action include a person walking, a baseball soaring through the air, a piece of food falling from a table, and a chargeable particle inside of an electric field.

mass of rock m_r = 3.0Kg

mass of water is m_w = 1.0Kg

temperature variation ΔT= 0.10°C

heat of water C_W = 4186 J/Kg °C

gravity g=9.8 m/sec^2

the expression for height,

mrgh = K

h = K/(mrg)

Evaluating numerically.

h = K / (mr g)

h = (418.6 J)/(3.2Kg⋅9.8 m/sec^2 )

h =** 14.6 m**

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A single raindrop illuminated by sunshine disperses:

A single raindrop illuminated by sunshine **disperses** the white light into seven colors spectrum.

A white sunlight consists of seven different color components. These color components have different **wavelength**. The speed of different components is different when they passes through an optically denser medium(e.g.: prism). So each color component gets bent by a certain amount thus causing dispersion.

A raindrop acts like a **prism** for the sunshine. When a light ray passes through a rain drop, it splits into seven color component which is known as the dispersion of light.

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A peanut burned in a calorimeter transfers 18,200 joules to 100.0 g of water. What is the rise in the water's temperature

The **rise** in the water's **temperature**, given that 18200 joules was **transferred **to the 100.0 g of water is 43.5 °C

**Heat** transferred I related to **temperature rise** by the following formula:

Q = MCΔT

Where

Q is the heat transferred M is the mass C is the specific heat capacity ΔT is the temperature riseWith the above formula, we can determine the **temperature rise** as illustrated below.

The following data were obtained from the question:

Heat transferred (Q) = 18200 JoulesMass of water (M) = 100.0 gSpecific heat capacity of water (C) = 4.184 J/gºCQ = MCΔT

18200 = 100 × 4.184 × ΔT

18200 = 418.4 × ΔT

Divide both sides by 418.4

ΔT = 18200 / 418.4

ΔT = 43.5 °C

Thus, we can conclude from the above calculation that the **temperature rise** of the water is 43.5 °C

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I need help, It would be lovely if someone could explain this to me

The** kinematic equation** of **motion** used to find the time, velocity, and acceleration of the motion in the questions are as follows;

8. The time it takes the runner to get to full speed is 5 seconds

9. The acceleration is 166.[tex]\overline{6}[/tex] m/s²

10. The initial velocity is 550 m/s

11. It takes the sketer 8 seconds

12. The acceleration of the fan is -6·π rad/s²

13. The speed with which the zebra hits the ground is 98 m/s

14. The acceleration of the school bus is -100 m/s²

15. 5 seconds ago the velocity of the jet was 4250 m/s

What are the kinematic equations of motion?The **kinematic equations** of **motion** are;

v = u + a·t

s = u·t + (1/2)·a·t²

v = u + 2·a·s

Where;

v = The final velocity

u = The initial velocity

s = The distance

t = The time of the motion

a = The acceleration

8. The runner's rate of **acceleration** = 2 m/s²

The runner's top **speed** = 10 m/s

The required kinematic equation is; *t* = (v - u)/a

Where;

t = The time duration

a = The acceleration = 2 m/s²

v = The final velocity = The runner's top speed = 10 m/s

u = The initial velocity of the motion = 0 (assumption that the runner starts from rest)

Therefore;

t = (10 - 0)/2 = 5

It takes the runner 5 seconds to get up to full speed9. The **speed** of the bullet when it hits the bystander, *v* = 250m/s

The **time** at which the bullet was shot out of the high powered rifle, *t* = 1.5 seconds

The **initial** velocity of the bullet, *u* = 0m/s (The bullet is initially at rest in the gun)

The **acceleration**, *a* = (v - u)/t

Acceleration = (250 - 0)/1.5 = 166.[tex]\overline{6}[/tex]

The acceleration of the bullet is 166.[tex]\overline{6}[/tex] m/s²10. The acceleration of the person as he falls, *a* = 10 m/s²

The speed at which the person was travelling as he hits the ground, *v* = 600 m/s

Time after which the person hits the ground, *t* = 5 seconds

v = u + a·t

u = v - a·t

Therefore; *u* = 600 - 10 × 5 = 550

11. The acceleration rate, *a* = 2 m/s²

Initial velocity, *u* = -6m/s

Final velocity, *v* = 10m/s

t = (10 - (-6))/2 = 8

The time it takes the skater is 8 seconds12. The initial angular velocity of the fan, ω₁ = 9 rev/sec

1 rev = 2·π rad, therefore;

ω₁ = 2·π × 9 rad/s = 18·π rad/s

The time after which the fan stops, Δt = 3 seconds

The final angular velocity of the fan, ω₂ = 0

The **angular** **acceleration** of the **fan**, α = (ω₂ - ω₁)/Δt

Therefore; α = (0 - 18·π)/3 = -6·π

The acceleration of the fan is -6·π rad/s²13. The time it takes the zebra to hit the ground = 10 seconds

The acceleration due to gravity, *g* = 9.8 m/s²

The initial velocity of the zebra, *u *= 0 m/s

Therefore;

The velocity with which the zebra hits the ground, *v *= 9.8 × 10 = 98

The zebra hits the ground moving at 98 m/s

14. Initial speed of the school bus, *u* = 50 m/s

The time it takes the school bus to come to rest = 0.5 seconds

The acceleration. *a* = (0 m/s - 50 m/s)/(0.5 s)) = -100 m/s²

15. The acceleration of the jet = 150 m/s²

Current velocity of the jet = 5000 m/s

The initial speed of the jet, *u*, 5 seconds ago is therefore;

u = 5000 - 150 × 5 = 4250

The initial speed of the jet 5 seconds ago is 4250 m/s

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i'm behind a car and wish to pass so you turn to the left and pull into the passing lane without changing speed why does the distance increase between you and the car you're following

Since the component of your **velocity** along the road decreased slightly as there was a component across the road when you changed lanes, the distance increased.

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A 1000 kg go-kart is moving at a constant speed of 23 m/s. How much kinetic energy does it have?

The **kinetic energy** possesed by a 1000kg **go-cart** that is moving at a constant speed of 23 m/s is 264,500J.

**Kinetic energy** is the **energy** possessed by an object because of its motion, equal (nonrelativistically) to one half the mass of the body times the square of its speed.

**Kinetic energy **of a body can be calculated using the following formula;

K.E = ½mv²

According to this question, a 1000kg **go-cart** is moving at a constant speed of 23m/s. The **kinetic energy** of the **cart** can be calculated as follows:

K.E. = ½ × 1000 × 23²

K.E. = 500 × 529

K.E. = 264,500J

Therefore, 264,500J is the **kinetic energy **of the **go-cart**.

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Jet streams are associated with fronts because of the:

Due to the significant temperature gradient, jet streams are connected to **fronts.**

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A 2250 kg cartraveling to the east slows down uniformly from 20 m/s to 5 m/s. How long does it take to decelerate if the braking force is 7500 N to the west?

A. 3 seconds

B. 4.5 seconds

C. 6 seconds

D. 7.5 seconds

The **time** taken for the car to **decelerate** is 4.5 seconds.

*option B.*

The **acceleration** of the car is calculated from Newton's second law of motion as follows;

F = ma

a = F / m

a = ( 7500 ) / ( 2250 )

a = 3.33 m/s²

The **time** taken for the car to slow down is calculated as follows;

v = u + at

at = v - u

t = ( v - u ) / a

where;

v is the final velocity u is the initial velocityt = ( 20 - 5 ) / 3.33

t = 4.5 seconds

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A bird species gains a new trait from a neutral mutation. After many generations, the trait becomes beneficial. What could have caused the change in the mutations effect?

Mutations may alter the structure of a **protein**, may be neutral, may be dangerous, or may be advantageous.

A mutation is a change to an organism's DNA sequence. Viral **infection**, mistakes in DNA replication during cell division, and exposure to mutagens can all lead to mutations. Gametes experience germline mutations. Other bodily cells are susceptible to somatic mutations. **Chromosome** alterations are mutations that change the structure of a chromosome. A single **nucleotide** is altered by point mutations. Depending on the situation or place, the impacts of mutation could be beneficial, negative, or neutral. The majority of non-neutral mutations are harmful. The impact and likelihood that a mutation will occur increase with each extra base pair that it modifies.

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In which digestive organ does the majority of lipid digestion and absorption occur?

The digestive organ that the majority of **lipid** digestion and absorption occur is the **small intestine**.

The **small intestine** is a part of the digestive system that is made up of the duodenum, jejunum, and ileum. It is the part of the **digestive system** that will follow the stomach.

This part of the intestine will be in charge mainly of the **digestion **of **lipids**, this process will begin in the mouth and in the stomach but then the digestion will take place in the small intestine with the help of **lipase enzymes **which will break the lipid molecules. After this process happens, the absorption of the lipids that will travel through circulation and go throughout the body will take place.

Therefore, we can confirm that the **digestive organ** that the majority of lipid **digestion **and **absorption **occur is the small intestine.

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A 400 Kg truck rushing through the street at 20 m/s crashes into a 50 Kg car making a turn at 2 m/s. The car is bounces off the bottom of truck at 142 m/s, what is the final velocity of the truck?

According to the given statement 2.5 m/s is the **final velocity** of the truck.

Velocity is the pace and path of an item's movement, whereas speed is really the time rate that a object is travelling along a route. In other words, velocity is a **vector**, whereas speed is a scalar number. as the pace of a car driving south on a highway or the pace at which a rocket takes off.

Collision energy equals **collision energy** before collision

Afterward, we would have;

(400 * 20) + (50 * 2) = (50 * 142) + (400 * v)

8000 + 100 = 7100 + 400v

8100 - 7100 = 400v

v = 1000/400

v = 2.5 m/s

According to our estimation, the velocity is 2.5 m/s.

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According to the given statement 2.5 m/s is the **final** **velocity** of the truck.

Velocity is the pace and path of an item's **movement**, whereas speed is really the time rate that a object is travelling along a route. In other words, velocity is a vector, whereas **speed** is a scalar number. as the pace of a car driving south on a highway or the pace at which a rocket takes off.

Collision energy equals collision energy before collision

Afterward, we would have;

(400 * 20) + (50 * 2) = (50 * 142) + (400 * v)

8000 + 100 = 7100 + 400v

8100 - 7100 = 400v

v = 1000/400

v = 2.5 m/s

According to our estimation, the velocity is 2.5 m/s.

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'3. It takes a student 5 seconds to pull a 20 kg stack of books, initially at rest, 10

meters across a frictionless lab floor.

a. What was the final velocity of the books?

B.What was the rate of acceleration of the books?

C.What was the net force on the books

The books' final speed is 4 m/s, their rate of **acceleration **is 0.8 m/s2, and their net force is 3.2 m/s2.

The **vectorial **expression of velocity is the movement in space-time of an object or particle. The recognised unit of velocity magnitude is the metre per second (m/s) (also known as speed). The rate of speed can also be expressed in centimetres per second (cm/s). The pace at which an object's location changes as seen from a certain angle and as stated by a specific time unit (for example, 60 km/h northbound) is measured by its velocity, which is the direction in which it is travelling.

As a physical **vector quantity**, velocity must have a specified magnitude and direction. Speed is a coherent derived unit whose quantity is measured in metres per second (m/s or ms1) in the SI. Speed is the scalar absolute value (magnitude) of velocity (metric system). A vector is "5 metres per second east."

= ∆/∆

v=20/5 v=4

Therefore the final velocity of the book is 4m/s.

Acceleration= v/t

=4/5

=0.8m/s2

Thus acceleration of book is 0.8m/s2

F=0.8*4

F=3.2m/s2

Net force is 3.2m/s2

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how potential difference varies in a parallel circuit versus a series circuit.

**Answer:**

A variable amount of current travels through each parallel branch of the circuit in a parallel circuit. Each component in a series circuit has a separate voltage across it. The same voltage is present across all of the circuit's components in a parallel circuit, though.

**Explanation:**

A parcel is traveling on a horizontal conveyer belt moving at 1 meter/second. At the end of the conveyor belt, the parcel lands on a tray after 1 second. Calculate the horizontal and vertical distance of the tray from the end of the conveyor belt.

**A parcel** is traveling on a horizontal conveyer belt moving at 1 meter/second. At the end of the conveyor belt, the parcel lands on a tray after 1 second. The** horizontal **distance is 1 meters and vertical distance of the tray from the end of the conveyor belt is 4.9 meters.

The conveyer belt's **horizontal speed **is 1 m/s.

The parcel settles on a **tray **at the end of the conveyor belt after 1 second. Finding the tray's horizontal and vertical **distance** from the conveyor belt's end is necessary.

D = v x t for horizontal distance

D= 1x1

d = 1 meter

Utilize the second equation of motion as follows for vertical distance:

s= ut+1/2gt²

Initially vertical velocity is zero

s= ut+1/2gt²

s = 0+1/2 9.8 x(1)²

S=4.9 meters.

Therefore, the tray is 1 meters and 4.9 meters away from the end of the **conveyor belt**, respectively, in both the horizontal and vertical directions.

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Describe an experiment to investigate the relation between efficiency and load using a block and tackle pulley system.

**Answer:**

An experiment to investigate the relationship between efficiency and load using a block and tackle pulley system could be set up as follows:

**1****.**Set up a block and tackle pulley system, with a fixed pulley at the top and a movable pulley at the bottom. The pulleys should be mounted on a sturdy frame, and the rope should be of a known length and thickness.

**2****.**Attach a weight to one end of the rope, and a load cell to the other end. The load cell will measure the force applied to the rope.

**3****.**Record the weight of the load and the force applied to the rope using the load cell.

**4****.**Measure the distance the load is raised, and record this distance.

**5****.**Repeat steps 3 and 4 for different loads, increasing the weight of the load in increments of, for example, 5 kg.

**6****.**Calculate the efficiency of the pulley system for each load by dividing the work output by the work input and multiplying by 100. The efficiency of the system can be calculated as follows: Efficiency = (Work out / Work in) * 100.

**7****.**Plot a graph of efficiency against load, and observe the relationship between the two variables.

**8****.**Repeat the experiment with different pulley systems, such as a single pulley system and a double pulley system and compare the results.

**9****.**Record the results and any observations and Analyze the data and make conclusions about the relationship between efficiency and load in a block and tackle pulley system.

what's the difference between nebula,protostar,and a star?

**Answer:**

**Explanation**

one is a galaxy and one is a Star.

Two freight cars, each with a mass of 2.3 ✕ 105 kg, collide and stick together. One was initially moving at 3.2 m/s and the other was at rest. What is their final speed?

It is also commonly abbreviated as ms−2. For example, if the velocity of a particle **moving **in a straight line changes uniformly (at a constant rate of change) from 2 m/s to 5 m/s over one second, then its constant acceleration is 3 m/s2.

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What is an expression for the volume of the following rectangular prism?

For a rectangular prism, the** expression volume** is calculated as **V = l ⋅ w ⋅ h** , where l is **the length**, w is **the width**, and h is **the height** of the rectangular prism.

It is much simpler to calculate the** surface area** and volume of a rectangular prism once it is understood that this type of prism is composed of some sets of** identical forms**.

The volume of a rectangular prism may be calculated by multiplying its length by its breadth by its height. The **surface area **of a rectangular prism can be calculated by **adding the areas** of each of its sides.

If you are familiar with the formulas for the surface area and volume of a rectangular prism, it will be much simpler for you to deal with different **geometric shapes**.

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What is the formula of magnetic field?

The **formula** for magnetic field is **B = μo(H + M)**.

The** magnetic** field of a magnet is the area around it in which a magnetic force is exerted. It is represented by the symbol B and follows the equation B = μo(H + M).

Here, μo is the permeability of free space, H is the magnetic field intensity and M is the magnetization.

The magnetic **field** can be measured by a variety of instruments such as a Hall probe or a flux meter. It can also be calculated using mathematical models such as the Biot-Savart law or Ampère's law.

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What will irregular galaxies eventually form into before transitioning into something else

billions of years later?

1.total galaxies

2.meteorite galaxies

3.dwarf galaxies

4.spiral galaxies

After a period, they start to collide with other galaxies, which causes them to become irregular galaxies. They **eventually **transform into ancient elliptical galaxies after **exhausting **all of their dust and gas to form new stars.

It is possible to think of irregular galaxies as star formation research labs. In contrast to the more well-known spiral galaxies, this kind of galaxy produces stars from an **interstellar **medium that has undergone less chemical evolution.

Typically, irregular galaxies are tiny, with a mass of only a tenth that of the **Milky Way **galaxy. They are vulnerable to environmental influences like colliding with massive galaxies and cosmic clouds because of their modest sizes.

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Speed and velocity

Number 1-5

**Average **speed =** total distance covered/ total time taken**

here on the graph y-axis is represented as distance and x-axis is showing time

So for the** average** speed of Train **(line A**)

total distance covered (d) = 1500 m

total time taken to reach that distance (t) = 150 s

so by a simple formula

For the** average** speed of Car **(line B**)

Total distance covered (d) = 1500 m

total time taken to reach that distance (t) = 120 s

so by

For **Maximum **speed of roller- coaster** (LineC**)

So in the time between 70-80 seconds, it has the highest slop which shows the speed maximum at that time

In that **10 seconds**, it covered** 200 meters **which shows its** maximum **speed which is

For the **average** speed of a Roller- coaster (line C)

Total distance covered (d) = 1300 m

total time taken to reach that distance (t) = 150 s

Speed =For the Train to **Stoped** at a station we can see from 40 seconds to 90 Seconds train has covered almost** 0 distance** which clearly shows that it was **stopped** which is 90-40=** 50 seconds.**

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