A mobile phone is 35% efficient. Over half an hour 11 kJ of energy is transferred to the phone.

Calculate the amount of energy usefully transferred by the machine over half an hour.

Answers

Answer 1
Answer:-

Energy Transferre=11KJEfficiency=35%☆Usefully transferred energy:-

[tex]\\ \sf\longmapsto 35\%\:of 11[/tex]

[tex]\\ \sf\longmapsto 35\%\times 11[/tex]

[tex]\\ \sf\longmapsto \dfrac{35}{100}\times 11[/tex]

[tex]\\ \sf\longmapsto \dfrac{385}{100}[/tex]

[tex]\\ \sf\longmapsto 3.85KJ[/tex]

[tex]\\ \sf\longmapsto 3850J[/tex]


Related Questions

The submarine emits a pulse of sound to detect other objects in the sea. The sped of sound in sea water is 1500m/s. An echo is received with a time delay of 0.50s after the original sound is emitted.

Calculate the distance between submarine and the other object

Answers

Answer:

d = 375 m

Explanation:

The speed of sound is constant in any medium, therefore we can use the uniform motion relationships

          v = x / t

          x = v t

In this case it indicates that the time since the sound is emitted and received is t = 0.50 s, in this time the sound traveled a round trip distance

           x = 2d

          2d = v t

          d = v t/2

     

let's calculate

          d = 1500 0.5 / 2

          d = 375 m

A 4.88 x 10-6 C charge moves 265 m/s

parallel (at 0°) to a magnetic field of

0.0579 T. What is the magnetic force

on the charge?

Answers

Answer:

[tex]F=0N[/tex]

Explanation:

From the question we are told that:

Charge [tex]Q=4.88 x 10-6 C[/tex]

Velocity [tex]v= 265m/s[/tex]

Angle [tex]\theta =0 \textdegree[/tex]

Magnetic field [tex]B=0.0579T[/tex]

Generally the equation for Force is mathematically given by

 [tex]F=Q(\=v*\=B)[/tex]

 [tex]F=qvBsin\theta[/tex]

Therefore

 [tex]F=qvBsin0 \textdegree[/tex]

 [tex]F=0N[/tex]

Answer:

0 newtons

Explanation:

When a moving charge is parallel to the magnetic field, it feels no Magnetic force at all.

Even if the Magnetic Field is 100,000,000 Tesla!

Two cars move at different velocities. Car A moves at a speed of 90 km/hr while Car B moves

at a speed of 75 km/hr . If both cars collided with a wall made up of the same material, which of

the two cars will create greater impact of collision. Both cars have the same masses.


(Serious Answers Please)​

Answers

This type of collision is known as an Inelastic collision.

The speed rate at which car a used is more higher than that of car b because of its friction.

I hope this helps.

Em um fio condutor uma carga de 6.000 C atravessa uma secção transversal em 5 minutos. Determinando-se a corrente no fio, encontraremos o valor de?

Answers

Answer:

I = 20 A

Explanation:

The question says that, "A load of 6,000 C is conducted through a cross section in 5 minutes. Determining-if a current is not correct, we will find the value of?"

We have,

Charge, q = 6,000 C

Time, t = 5 minutes = 300 s

We need to find the current. We know that, the charge flowing per unit time is equal to current. So,

[tex]I=\dfrac{q}{t}\\\\I=\dfrac{6000}{300}\\\\I=20\ A[/tex]

So, the current flowing through the circuit is 20 A.

A student drops a ball off the top of building and records that the ball takes 3.32s to reach the ground (g = 9.8 m/s^2). What is the ball speed just before hitting the ground?​

Answers

Answer:

Explanation:

Here's what we know because it was given to us:

a = -9.8 m/s/s and

time = 3.32 seconds

Here's what we know because we rock physics:

v₀ = 0 (because the object was held still before it was dropped).

Here's the equation that ties all that info together in a single one-dimensional equation:

v = v₀ + at

Filling in and solving for v:

v = 0 + (-9.8)(3.32) and

v = -33m/s

The velocity is negative because the object is moving downwards and up is positive (but you knew that already too!)

The earth's orbital is oval in shape. Explain how the magnitude of the gravitational force between the earth and the sun changes as the earth moves from position A to B as shown in the figure.​

Answers

The gravitational force does change believe it or not, but the explaination for this is because the earths orbit is an oval (or a not circle) the closer it nears its self to the sun.

(Please help if you can, I need this last answer done by tonight.)
Use the universal law of gravitation to solve the following problem.


Hint: mass of the Earth is = 5.97 x 1024 kg


A scientific satellite of mass 1300 kg orbits Earth 200 km above its surface. If Earth has a radius of 6378 km, what is the force of gravity acting on the scientific satellite?


a. Write out the formula for this problem.


b. Plug in the values from this problem into the formula.


c. Solve the problem, writing out each step.


d. Correct answer

Answers

Answer:

a.

[tex]F =G \cdot \dfrac{M \cdot m}{r^{2}}[/tex]

b.

[tex]F =6,378 \times 10^{-11} \times \dfrac{5.97 \times 10^{24} \times 1,300}{6,578^{2}}[/tex]

c.

[tex]F =6,378 \times 10^{-11} \times \dfrac{5.97 \times 10^{24} \times 1,300}{6,578^{2}} = \dfrac{9.519165 \times 10^{18}}{832117} \approx 1.144 \times 10^{13}[/tex]

d. 1.144 × 10¹³ N

Explanation:

The universal law of gravitation is presented as follows;

[tex]F =G \cdot \dfrac{M \cdot m}{r^{2}}[/tex]

The given mass of the scientific satellite, m = 1,300 kg

The height of the orbit of the satellite, r = 200 km above the Earth's surface

The length of the radius of the Earth, R = 6378 km

The mass of the Earth = 5.97 × 10²⁴ kg

a. The formula for the universal law of gravitation is presented as follows;

[tex]F =G \cdot \dfrac{M \cdot m}{r^{2}}[/tex]

Where;

M = The mass of the Earth = 5.97 × 10²⁴ kg

m = The mass of the satellite = 1,300 kg

r = The distance between the Earth and the satellite = R + r = 6,378 km + 200 km = 6,578 km

G = The Gravitational constant = 6.67430 × 10⁻¹¹ N·m²/kg²

b. Plugging in the values from the problem into the formula gives;

[tex]F =6,378 \times 10^{-11} \times \dfrac{5.97 \times 10^{24} \times 1,300}{6,578^{2}}[/tex]

c. Solving gives;

[tex]F =6,378 \times 10^{-11} \times \dfrac{5.97 \times 10^{24} \times 1,300}{6,578^{2}} = \dfrac{9.519165 \times 10^{18}}{832117} \approx 1.144 \times 10^{13}[/tex]

The force acting between the Earth and the satellite, F ≈ 1.144 × 10¹³ N

d. 1.144 × 10¹³ N

QUESTION 30 A tennis ball moves back and forth 10 times in 5 sec. The frequency of its motion is​

Answers

Answer:

so in 1 sec 2 times

so frequency = 2

Explanation:

Una masa de Hidrogeno ocupa 0.2 L a 100°C. Determine su volumen a 0°C, si la presión se mantiene constante. Como la presión y la cantidad de materia se mantienen constantes, podemos aplicar la ley de Charles

Answers

Answer:

0,146 L

Explanation:

Según la ley de Charles; el volumen de una determinada masa de gas es directamente proporcional a su temperatura a presión constante.

A partir de los datos proporcionados;

V1 = 0,2 L

T1 = 100 ° C + 273 = 373 K

V2 =

T2 = 0 ° C + 273 = 273 K

V1 / T1 = V2 / T2

V1T2 = V2T1

V2 = V1T2 / T1

V2 = 0,2 × 273/373

V2 = 0,146 L

HELPPP I NEED HELP ASAP NOW

Answers

Answer:

Your answers would be

4. A. sperm and testosterone.

7. C. prostate, penis, Testes

uterus, vagina, fallopian tubes

10. B. Protein

11. A. carbohydrate

12. B. amino acids (I'm not positive on this i haven't taken bio in years

27. D. Respiratory system

Explanation:

yeah

help....................​

Answers

Answer:- 16000 Explanation:-force = 800Narea of 1 feet = 0.025Area of 2 feet= 0.025+0.025 = 0.050m²presure = force / area = 800 N / 0.050 = 16000

A bullet of mass 0.5 kg is moving horizontally with a speed of 50 m/s when it hits a block
of mass 3 kg that is at rest on a horizontal surface with a coefficient of friction of 0.2.
After the collision the bullet becomes embedded in the block.
A) What is the net momentum of the bullet-block system before the collision?
B) Find the total energy of the bullet-block system before the collision?
C) What is the speed of the bullet-block system after the collision?
D) *Find the total energy of the bullet-block system after the collision?
E) *How much work must be done to stop the bullet-block system?
F) *Find the maximum traveled distance of the bullet-block after the collision?

Answers

Answer:

a) The net momentum of the bullet-block system before the collision is 25 kilogram-meters per second.

b) The initial translational kinetic energy of the bullet before the collision is 625 joules.

c) The final speed of the bullet-block system after the collision is 7.143 meters per second.

d) The total energy of the bullet-block system after the collision is 89.289 joules.

e) 89.289 joules must be done to stop the bullet-block system.

f) The bullet-block system will travel 13.007 meters before stopping.

Explanation:

a) Since no external forces are applied on the system defined by the bullet and the block, then the net momentum is conserved and can be calculated by  the initial momentum of the bullet:

[tex]p = m\cdot v_{o}[/tex] (1)

Where:

[tex]p[/tex] - Net momentum, in kilogram-meters per second.

[tex]m[/tex] - Mass of the bullet, in kilograms.

[tex]v_{o}[/tex] - Initial speed of the bullet, in meters per second.

If we know that [tex]m = 0.5\,kg[/tex] and [tex]v_{o} = 50\,\frac{m}{s}[/tex], then the net momentum of the bullet-block system before the collision is:

[tex]p = (0.5\,kg)\cdot \left(50\,\frac{m}{s} \right)[/tex]

[tex]p = 25\,\frac{kg\cdot m}{s}[/tex]

The net momentum of the bullet-block system before the collision is 25 kilogram-meters per second.

b) The total energy of the bullet before the collision is its initial translational kinetic energy ([tex]K[/tex]), in joules:

[tex]K = \frac{1}{2}\cdot m \cdot v_{o}^{2}[/tex] (2)

[tex]K = \frac{1}{2}\cdot (0.5\,kg)\cdot \left(50\,\frac{m}{s} \right)^{2}[/tex]

[tex]K = 625\,J[/tex]

The initial translational kinetic energy of the bullet before the collision is 625 joules.

c) Both the bullet and the block experiments a complete inelastic collision, then the final speed of the bullet-block system is calculated solely by the Principle of Momentum Conservation:

[tex]v_{f} = \frac{m\cdot v_{o}}{m+M}[/tex] (3)

Where:

[tex]v_{f}[/tex] - Final speed, in meters per second.

[tex]M[/tex] - Mass of the block, in kilograms.

If we know that [tex]m = 0.5\,kg[/tex], [tex]v_{o} = 50\,\frac{m}{s}[/tex] and [tex]M = 3\,kg[/tex], then the final speed of the bullet-block system is:

[tex]v_{f} = \left(\frac{0.5\,kg}{0.5\,kg + 3\,kg} \right)\cdot \left(50\,\frac{m}{s} \right)[/tex]

[tex]v_{f} = 7.143\,\frac{m}{s}[/tex]

The final speed of the bullet-block system after the collision is 7.143 meters per second.

d) The total energy of the bullet-block system after the collision is the translational kinetic energy of the system ([tex]K[/tex]), in joules, is:

[tex]K = \frac{1}{2}\cdot (m + M)\cdot v_{f}^{2}[/tex] (4)

[tex]K = \frac{1}{2}\cdot (0.5\,kg + 3\,kg)\cdot \left(7.143\,\frac{m}{s} \right)^{2}[/tex]

[tex]K = 89.289\,J[/tex]

The total energy of the bullet-block system after the collision is 89.289 joules.

e) By Work-Energy Theorem, magnitude of the work done by friction must be equal to the magnitude of the translational kinetic energy of the system. Hence, 89.289 joules must be done to stop the bullet-block system.

f) The maximum travelled distance of the bullet-block after the collision can be determined by means of Work-Energy Theorem and definition of work:

[tex]W = \mu_{k}\cdot (m+M)\cdot g\cdot s[/tex] (5)

Where:

[tex]W[/tex] - Work done by friction, in joules.

[tex]g[/tex] - Gravitational acceleration, in meters per square second.

[tex]s[/tex] - Travelled distance, in meters.

[tex]\mu_{k}[/tex] - Kinetic coefficient of friction, no unit.

If we know that [tex]m = 0.5\,kg[/tex], [tex]M = 3\,kg[/tex], [tex]\mu_{k} = 0.2[/tex], [tex]g = 9.807\,\frac{m}{s^{2}}[/tex] and [tex]W = 89.289\,J[/tex], then the travelled distance of the bullet-block system is:

[tex]s = \frac{W}{\mu_{k}\cdot (m+M)\cdot g}[/tex]

[tex]s = \frac{89.289\,J}{0.2\cdot (0.5\,kg + 3\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}[/tex]

[tex]s = 13.007\,m[/tex]

The bullet-block system will travel 13.007 meters before stopping.

In a bicycle dynamo,does 1. The permanent magnet surrounds a conducting coil 2. The conducting coil rotates when the rear wheel of the bicycle rotates. 3.The electricity is generated in the permanent magnet 4.When the rear wheel of the bicycle turns fast, the brightness of the light increases

Answers

Explanation:

3: the electricity is generated in the permanent magnet

Per me at magnet
I know this because yea I got this and I got it correct so trust me

A car takes a full round of journey in a roundabout with constant speed, as the driver got confused with the route. Can we consider it as a uniform motion? Why?

Answers

Answer: The given statement is True

Explanation:

A uniform motion is defined as the motion where an object is moving at a constant speed.

A non-uniform motion is defined as the motion where an object keeps changing its position and does not move at a constant speed.

We are given:

A car takes a full round of journey in a roundabout with constant speed

As the speed remains constant in a circular path, it is considered a uniform motion.

Hence, the given statement is True

Melanie gets into an accident on the highway that sends her to the hospital for three weeks with multiple broken bones. Her hospital bill totals over $32,000, but she discovers that the woman who hit her only has $25,000 worth of liability insurance.

Answers

20,000 because I did the quiz and got it right txt me if you need help

Calculate the man’s mass. (Use PE = m × g × h, where g = 9.8 N/kg.)
A man climbs a wall that has a height of 8.4 meters and gains a potential energy of 4,620 joules. His mass is about
kilograms

Answers

Answer:

mass=56.12kg

Explanation:

PE=mgh

4620=m×9.8×8.4

make m subject of the formula...

m =4620/(9.8×8.4)

m=4620/82.32

m=56.12kg

if the action force is 100N what will be the reaction force​

Answers

Answer:

HONORS PHYSICS

Introduction

Matter & Energy

Math Review

Kinematics

Defining Motion

Graphing Motion

Kinematic Equations

Free Fall

Projectile Motion

Relative Velocity

Dynamics

Newton's 1st Law

Free Body Diagrams

Newton's 2nd Law

Static Equilibrium

Newton's 3rd Law

Friction

Ramps and Inclines

Atwood Machines

Momentum

Impulse & Momentum

Conservation Laws

Types of Collisions

Center of Mass

UCM & Gravity

Uniform Circular Motion

Gravity

Kepler's Laws

Rotational Motion

Rotational Kinematics

Torque

Angular Momentum

Rotational KE

Work, Energy & Power

Work

Hooke's Law

Power

Energy

Conservation of Energy

Fluid Mechanics

Density

Pressure

Buoyancy

Pascal's Principle

Fluid Continuity

Bernoulli's Principle

Thermal Physics

Temperature

Thermal Expansion

Heat

Phase Changes

Ideal Gas Law

Thermodynamics

Electrostatics

Electric Charges

Coulomb's Law

Electric Fields

Potential Difference

Capacitors

Current Electricity

Electric Current

Resistance

Ohm's Law

Circuits

Electric Meters

Circuit Analysis

Magnetism

Magnetic Fields

The Compass

Electromagnetism

Microelectronics

Silicon

P-N Junctions

Transistors

Digital Logic

Processing

Integration

Waves & Sound

Wave Characteristics

Wave Equation

Sound

Interference

Doppler Effect

Optics

Reflection

Refraction

Diffraction

EM Spectrum

Modern Physics

Wave-Particle Duality

Models of the Atom

M-E Equivalence

The Standard Model

Relativity

DYNAMICS

Newton's 1st Law

Free Body Diagrams

Newton's 2nd Law

Static Equilibrium

Newton's 3rd Law

Friction

Ramps and Inclines

Atwood Machines

Silly Beagle

Newtons's 3rd Law of Motion

Newton’s 3rd Law of Motion, commonly referred to as the Law of Action and Reaction, describes the phenomena by which all forces come in pairs. If Object 1 exerts a force on Object 2, then Object 2 must exert a force back on Object 1. Moreover, the force of Object 1 on Object 2 is equal in magnitude, or size, but opposite in direction to the force of Object 2 on Object 1. Written mathematically:

Newton's 3rd Law Equation

This has many implications, some of which aren’t immediately obvious. For example, if you punch the wall with your fist with a force of 100N, the wall imparts a force back on your fist of 100N (which is why it hurts!). Or try this. Push on the corner of your desk with your palm for a few seconds. Now look at your palm... see the indentation? That’s because the corner of the desk pushed back on your palm.

running tiger

Although this law surrounds your actions everyday, often times you may not even realize its effects. To run forward, a cat pushes with its legs backward on the ground, and the ground pushes the cat forward. How do you swim? If you want to swim forwards, which way do you push on the water? Backwards, that’s right. As you push backwards on the water, the reactionary force, the water pushing you, propels you forward. How do you jump up in the air? You push down on the ground, and it’s the reactionary force of the ground pushing on you that accelerates you skyward!

As you can see, then, forces always come in pairs. These pairs are known as action-reaction pairs. What are the action-reaction force pairs for a girl kicking a soccer ball? The girl’s foot applies a force on the ball, and the ball applies an equal and opposite force on the girl’s foot.

How does a rocket ship maneuver in space? The rocket propels hot expanding gas particles outward, so the gas particles in return push the rocket forward. Newton’s 3rd Law even applies to gravity. The Earth exerts a gravitational force on you (downward). You, therefore, must apply a gravitational force upward on the Earth!

The formulas used to analyze the horizontal and vertical motion of projectiles launched at an angle invlove and use of which functions

Answers

Answer:

Explanation:

The formula to analyze motion in the vertical (or y) dimension is

[tex]A_y=Asin\theta[/tex] which says that the motion in the y-dimension is equal to the magnitude of the A vector times the sin of the angle.

The formula to analyze motion in the horizontal (or x) dimension is

[tex]A_x=Acos\theta[/tex] which says that the motion in the x-dimension is equal t the mignitude of the A vector times the cosine of the angle.

Many times this is used to find the upwards velocity and the horizontal velocity when an overall velocity is given with an angle of inclination.

A converging lens can be defined as __________


a lens that causes parallel light rays to bounce off the surface

a lens that allows parallel light rays to pass without changing direction

a lens that causes parallel light rays to separate from each other

a lens that causes parallel light rays to focus at a specific location

Answers

Answer:

a lens that causes parallel light rays to separate from each other

Answer:

a lens that causes parallel light rays to focus at a specific location

I took the test and got it right! :)

One block rests upon a horizontal surface. A second identical block rests upon the first one. The coefficient of static friction between the blocks is the same as the coefficient of static friction between the lower block and the horizontal surface. A horizontal force is applied to the upper block, and its magnitude is slowly increased. When the force reaches 52.1 N, the upper block just begins to slide. The force is then removed from the upper block, and the blocks are returned to their original configuration. What is the magnitude of the horizontal force that should be applied to the lower block, so that it just begins to slide out from under the upper block

Answers

Answer:

F = 156.3 N

Explanation:

Let's start with the top block, apply Newton's second law

         F - fr = 0

         F = fr

         fr = 52.1 N

Now we can work  with the bottom block

In this case we have two friction forces, one between the two blocks and the other between the block and the surface. In the exercise, indicate that the two friction coefficients are equal

we apply Newton's second law

Y axis

        N - W₁ -W₂ = 0

        N = W₁ + W₂

as the two blocks are identical

        N = 2W

X axis

        F - fr₁ - fr₂ = 0

        F = fr₁ + fr₂

indicates that the lower block is moving below block 1, therefore the upper friction force is

          fr₁ = 52.1 N

          fr₁ = μ N

a

s the normal in the lower block of twice the friction force is

          fr₂ = μ 2N

          fr₂ = 2 μ N

          fr₂ = 2 fr₁

we substitute

          F = fr₁ + 2 fr₁

          F = 3 fr₁

          F = 3  52.1

          F = 156.3 N

sulfur and oxygen can react to form both sulfur dioxide and sulfur trioxide in sulfur dioxide there are 32.06 grams of sulfur and 32 grams of oxygen in sulfur dioxide there are 32.06 grams of sulfur are combined with 48 grams of oxygen

a. what is the ratio of the weights of oxygen that combine with 32.06 g of sulfur ?
b. How do these data illustrate the law of multiple proportions? ​

Answers

Answer:

a. 2:3

b. The data illustrates the law of multiple proportions by showing that the the masses of oxygen that reacts with a fixed mass of sulfur are in a ratio of small whole numbers

Explanation:

The weight of oxygen that combines with 32.06 grams of sulfur in sulfur dioxide = 32 grams

The weight of oxygen that combines with 32.06 grams of sulfur in sulfur trioxide = 48 grams

a. The ration of the weights of oxygen that combine with 32.06 g of sulfur = 32:48 = 2:3

b. The law of multiple proportions states that when two elements are able to interact chemically to form more than one compound, then the (different) weights of one of the element that combines with a fixed weight of the other element are in small whole number ratios

The data demonstrates the law of multiple proportions by showing that the ratios of the weights of oxygen that combine with a fixed weight of sulfur to form sulfur dioxide and sulfur trioxide is in the ratio of 2 to 3 which are small whole number ratios

distance= 10km due West in 1hour calculate the velocity​

Answers

Answer:

Velocity = distance / time

V = 10/1

V = 10km/h

Answer:10km/h or 2.77m/s.

Explanation:

Distance =10km

Time =1h

Velocity =10/1 =10km/h

Or,

Distance =10km =10000m

Time =1h =60min = 3600s

Velocity =10000/3600 =2.77m/s


A horse pulls a wagon with a force of 200 N for a distance of 80 m. How much work
does the horse do?

Answers

Answer:

w=f×s

w = 16000 J, hope this helps

A gas occupies 2 m^3 at 27°C at a pressure of 1 atmosphere. At a pressure of 2 atmospheres it occupies a volume of 1 m^2. What is its temperature at this new volume and pressure?

Answers

Answer:

27°C

Explanation:

We'll begin by converting 27 °C to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

Initial temperature (T₁) = 27 °C

Initial temperature (T₁) = 27 °C + 273

Initial temperature (T₁) = 300 K

Next, we shall determine the final temperature of the gas. This can be obtained as follow:

Initial volume (V₁) = 2 m³

Initial temperature (T₁) = 300 K

Initial pressure (P₁) = 1 atm

Final pressure (P₂) = 2 atm

Final volume (V₂) = 1 m³

Final temperature (T₂) =?

P₁V₁/T₁ = P₂V₂/T₂

1 × 2 / 300 = 2 × 1 / T₂

2/300 = 2/T₂

1/150 = 2/T₂

Cross multiply

T₂ = 150 × 2

T₂ = 300 K

Finally, we shall convert 300 K to celsius temperature. This can be obtained as follow:

T(°C) = T(K) – 273

T(K) = 300 K

T(°C) = 300 – 273

T(°C) = 27°C

Thus, the final temperature is 27°C

Why is a person not a good blackbody radiator?
O A. A person emits only visible light.
OB. A person emits only infrared radiation.
O C. A person absorbs most of the light that hits him or her.
O D. A person reflects little of the light that hits him or her.

Answers

Answer:

O C. A person absorbs most of the light that hits him or her.

Explanation:

Answer:

Option D hope it's helpful mark me as brainlist

Neha and Reha are playing see-saw.Neha is sitting 60cm away from the fulcrum and Reha is sitting 40cm away from the fulcrum.Calculate the effort that Reha should apply to lift Neha.The weight of Neha is 360N.​

Answers

Answer:

Effort = 540 Newton

Explanation:

Given the following data;

Load arm = 60 cm

Effort arm = 40 cm

Load = 360 N

Conversion:

100 cm = 1 meters

40 cm = 40/100 = 0.4 meters

60 cm = 60/100 = 0.6 meters

To calculate the effort that Reha should apply to lift Neha, we would use the expression;

Effort * effort arm = load * load arm

Substituting into the expression, we have;

Effort * 0.4 = 360 * 0.6

Effort * 0.4 = 216

Effort = 216/0.4

Effort = 540 Newton

Which statement correctly describes the Earth's magnetic field?

A. The geomagnetic south is consistent with a magnetic south.
B. The geomagnetic north is similar to the south pole of a magnet.
C. The Earth's magnetic poles are the same magnetic charge at the poles.
D. The Earth does not have a consistent pattern of magnetism.

Answers

Answer: B. The geomagnetic north is similar to the south pole of a magnet

Explanation:

When magma flows on the surface on the surface, it is already called lava

TRUE OR FALSE​

Answers

Answer:

True

Explanation:

I guess you made a mistake on question.

but I understood what you wanted to say.

Hope this helps... :)

Convert:
1) 2kg into gram
2) 5200m into km
3) 20cm into m

Answers

1) 2 kilograms converted into grams is 2000

2) 5200 meters converted into kilometers is 5.2

3) 20 centimeters converted into meters is 0.2

Explain the energy transformations that occur when accelerating in a gasoline
vehicle.

Answers

When gasoline burns in a car engine, some of the chemical energy in the gasoline is converted into heat. The heat is converted into mechanical energy. The mechanical energy moves the car or vehicle.
ANSWER:

Chemical Energy Occurs

Because of the gasoline inside of the car is being burned up and cause a chemical reaction or the gasoline releasing chemicals such as hydrocarbons.

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NO LINKS OR ELSE YOU'LL BE REPORTED! Only answer if you're very good at English.No guessing please.Author's Point of View: Video games can help teens become more social.Part 2 of the "Social Gaming" Section:Most teens play video games by themselves some of the time, but gaming is far from being just an independent activity.In a 2008 PEW research study of teenagers ages 12-17 only one quarter of the teens played video games alone all the time.Of the teens who played with others,65 percent reported playing games with people in the same room with them.The other 25 percent played with people through an internet connection, and these other players were mostly people the teens knew.Which point of view conflicts with the author's point of view about video games in the section "Social Gaming"?A: Video games should teach teens more about responsibility and cooperation.B: Video games isolate teenagers from the outside world.C: Teenagers and play video games are socially awkward.D: Playing video games is not just an independent activity. What does gene mutation mean? When r+s=13 and 2t+s=13 , what is the value of t? An asphalt concrete mixture includes 94% aggregates by weight. The specific gravity of aggregate and asphalt are 2.7 and 1.0, respectively. If the bulk density of the mix is 2.317 g/cm3, what is the percent voids in the total mix? Find the surface area of the cone in terms of pi17 cm height3 cm radiusNot drawn to scale if i have 100000 what is 47.6% OF THE MONEY Retained earnings, December 31, 2019 $210,300 Decrease in total liabilities during 2019 45,800 Gain on the sale of buildings during 2019 16,100 Dividends declared and paid in 2019 4,500 Proceeds from sale of common stock in 2019 49,400 Net income for the year ended December 31, 2019 22,600Required:From the above data, calculate the retained earnings balance as of December 31, 2015. Cho e hi cc vn ca chui cung ng thc phm trong kinh doanh m thc v cch khc phc Mong mi ngi gip e Please help!! Will mark brainilest Given that abcd ~Jklm. Find the value of x, y, and z Can someone help with this Solve the following system graphically. y < - x y =< x - 2 Upload one solution of the system and your graph Which equation represents the graphed function?y = 2x + 3y = 2x + 3y = x + 3y = x + 3 Answer B How many solutions are there to the equation below?4(x 5) = 3x + 7 An ocean layer in which the temperature drops with depth faster than in other layers is called a thermo cline. True or false Estimate and classify the critical points for the graph of the function. Why would the Earth be barren without the atmosphere? Which of the following is the best use for the sign chart when graphingrational functions?O A. To determine if the graph of F(x) is straight or curvedO B. To determine the slope for the graph of F(x)O C. To determine where the vertical asymptotes are for the graph ofF(x)OD. To determine where the maximum is for the graph of F(x)SUBMIT Courington Detailing's cost formula for its materials and supplies is $1,920 per month plus $11 per vehicle. For the month of August, the company planned for activity of 87 vehicles, but the actual level of activity was 52 vehicles. The actual materials and supplies for the month was $2,130. The materials and supplies in the flexible budget for August would be closest to:_________. a. $2,130 b. $1,627 c. $2,877 d. $2,492 How can the health care professional prepare for working with various age groups?