Anybody knows this thanks !

Answer:a

Explanation:because I know

Answer:

B & C

Explanation:

the first block will not move

Answer:

D

Explanation:

Answer:

HELLO THERE

Explanation:

D

Answer:

The correct answer is oxygen and hydrogen

Answer:

oxygen and hydrogen

Explanation:

because h20 has 2 oxygen and 2 hydrogen

Answer:

The fraction of the weight of the astronaut on Callisto to the weight on Earth is 0.126.

Explanation:

From Newton's Law of Motion, the weight ([tex]W[/tex]), measured in newtons, of an object is defined by this expression:

[tex]W = m\cdot g[/tex] (1)

Where:

[tex]m[/tex] - Mass, measured in kilograms.

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

The gravitational acceleration in Callisto is 1.236 meters per square second.

If we know that [tex]m = 50\,kg[/tex] and [tex]g = 1.236\,\frac{m}{s^{2}}[/tex], then the weight of the astronaut in Callisto is:

[tex]W = (50\,kg)\cdot \left(1.236\,\frac{m}{s^{2}} \right)[/tex]

[tex]W = 61.8\,N[/tex]

And the fraction is:

[tex]x = \frac{61.8\,N}{490\,N}[/tex]

[tex]x = 0.126[/tex]

The fraction of the weight of the astronaut on Callisto to the weight on Earth is 0.126.

Answer:

Resistance of resistor A = 6.0 Ω and resistance of resistor B = 3.0 Ω

Explanation:

When the two resistors are in series, let V₁ = voltage in resistor A and R₁ = resistance of resistor A and V₂ = voltage in resistor B and R₂ = resistance of resistor B.

Given that V₁ + V₂ = 6.0 V and V₁ = 4.0 V,

V₂ = 6.0 V - V₁ = 6.0 V - 4.0 V = 2.0 V

Also, let the current in series be I.

So, V₁ = IR₁ and V₂ = IR₂

I = V₁/R₁ and I = V₂/R₂

equating both expressions, we have

V₁/R₁ = V₂/R₂

4.0 V/R₁ = 2.0 V/R₂

dividing through by 2.0 V, we have

2/R₁ = 1/R₂

taking the reciprocal, we have

R₂ = R₁/2

R₁ = 2R₂

From the parallel connection, let V₁ = voltage in resistor A and R₁ = resistance of resistor A and V₂ = voltage in resistor B and R₂ = resistance of resistor B. Since it is parallel, V₁ = V₂ = V = 6.0 V

Also, V₂ = I₂R₂ where I₂ = current in resistor B = 2.0 A and R₂ = resistance of resistor B

So, R₂ = V₂/I₂

= 6.0 V/2.0 A

= 3.0 Ω

R₁ = 2R₂

= 2(3.0 Ω)

= 6.0 Ω

So, resistance of resistor A = 6.0 Ω and resistance of resistor B = 3.0 Ω

The resistance of A is 6Ω while for B is 3Ω.

Potential difference is the amount of work done in moving a unit charge from one point to another.

When the two resistors are connected in parallel across the 6.0 V battery, the current in B is found to be 2.0 A, hence:

2 * Rb = 6 V

Rb = 3Ω

For the series connection:

I * 3 = (6 - 4)

I = 2/3 A

Hence:

(2/3) * Ra = 4

Ra = 6Ω

The resistance of A is 6Ω while for B is 3Ω.

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Answer:

pollination

Explanation:

it involves the transfer of a fertilized plant to another

Answer:

pollination

Explanation:

plants can't really do much without bees keep in mind

Answer:

300 J

Explanation:

From conservation of energy;

Gravitational potential energy at top = Kinetic Energy at bottom

mgh = ½mv²

We are given;

Mass; m = 12 kg.

Height; h = 2.5 m

g = 10 m/s²

Thus;

mgh = 12 × 2.5 × 10 = 300 J

Since mgh = Kinetic Energy at bottom.

Thus; kinetic energy of the ball once it reach the ground = 300 J

Answer:

Kinetic energy

Explanation:

The energy associated with an object's motion is called kinetic energy. A speeding bullet, a walking person, and electromagnetic radiation like light all have kinetic energy.

Kinetic energy. For example, a walking person.

Answer:

the 750 j will have potential energy is 375

Explanation:

750/2 is 375

Answer:

Total resistance = 35 ohms

Explanation:

Given that,

Three resistors are 14 ohms 12 ohms and 9 ohms are connected in series.

For a series combination, the equivalent resistance is given by :

[tex]R_s=R_1+R_2+R_3\\\\R_s=14+12+9\\\\R_s=35\ \Omega[/tex]

So, the total resistance of the circuit is [tex]35\ \Omega[/tex].

Complete Question:

Two identical soccer balls are rolled toward each other. What will be true after they collide headon?

Group of answer choices.

A. they will both stop rolling immediately after they collide head–on.

B. One ball will stop rolling and the other will roll backward at a slower speed.

C. They will both roll back at the same speed they had before the collision

D.They will both roll to the side at a faster speed after the collision

Answer:

C. They will both roll back at the same speed they had before the collision

Explanation:

Newton's Third Law of Motion which states that, for every action there is an equal but opposite reaction.

This ultimately implies that, in every interaction, there is a pair of forces acting on the two interacting objects.

In this scenario, two identical soccer balls are rolled toward each other. Thus, after they collide headon, they will both roll back at the same speed they had before the collision in accordance with Newton’s Third Law of Motion.

Additionally, The law of conservation of momentum states that the total linear momentum of any closed system would always remain constant with respect to time.

This ultimately implies that, if the two identical soccer balls exert forces only on each other, their total momentum is conserved

Answer:

The correct answer is - puberty.

Explanation:

Sebaceous glands are the exocrine glands present in mammals that are microscopic glands, produce an oily substance, Sebum, lubricates the skin and hair follicles.

Activation of these glands is triggered twice in the developmental stage or phase, neonatal (0 to three months from birth) but the major activation of these glands when puberty hits an individual. It produces 500 percent of its normal production during the puberty phase.

Answer:

drought, floods, rip currents, tropical cyclones, wildfires

Explanation:

right on edge

Answer:

C. The floor pushing back against the foot​

Explanation:

An unmanned spacecraft leaves for Venus. The statements, The weight of the spacecraft keeps changing and The mass of the spacecraft remains the same. This 2 statements A and D are true.

A spaceship is a machine or vehicle built to travel through space. Spacecraft are a form of artificial satellite utilised for a wide range of tasks, such as communications, Earth observation, meteorology, navigation, space colonisation, planetary exploration, and freight and person transfer. All spacecraft, with the exception of single-stage-to-orbit vehicles, need a launch vehicle (carrier rocket) to get into space.

A spacecraft that is performing a sub-orbital spaceflight launches into space and then lands without gaining enough momentum or energy to complete a full orbit of the Earth. Spacecraft enter confined orbits around the Earth or other celestial bodies for orbital spaceflights. Only humans are carried on human spacecraft either as crew or guests from launch or while in orbit (space stations).

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The man's average velocity is 73.3 mph (miles per hour).

Average velocity is a measure of the rate of displacement of an object in a given direction. It is the total displacement of the object divided by the total time taken to cover that displacement. In other words, it is the distance an object travels divided by the time it takes to travel that distance. Average velocity is an important concept in physics, as it can provide insight into the motion of an object and the forces acting upon it. Average velocity can be calculated using the equation: velocity = displacement/time.

This can be calculated by dividing the distance (55 miles) by the time (0.75 hours). Mathematically, this can be expressed as:

velocity = (distance / time)

velocity = (55 miles / 0.75 hours)

velocity = 73.3 mph

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Answer:

Explanation:

the answer is C.)

The torque produced by a perpendicular force of 75 N at the end of a 0.2 m wrench is 15 Nm.

The force which causes the object to rotate about any axis is called torque. In math form, it is equivalent to the product of force and perpendicular distance.

Torque is a twisting or turning force that frequently results in rotation around an axis, which may be a fixed point or the center of mass. The ability of something rotating, such as a gear or a shaft, to overcome turning resistance is another way to think of torque.

Given:

The perpendicular force on the wrench, P = 75 N,

The length of the wrench, r = 0.2 m,

Calculate the torque of the wrench as shown below,

The torque of the wrench = r × P × sin a

Here, the force is perpendicular hence, a = 90°

The torque of the wrench = 0.2 × 75 × sin90

The torque of the wrench = 15 × 1

The torque of the wrench = 15

Thus, the torque on the wrench is 15 Nm.

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Answer:

the answer is 12.0

The wavelength of the water wave is 0.75 meters.

Wavelength is the distance between successive peaks or troughs of a wave. It is denoted by the symbol λ (lambda) and is measured in meters (m) or other units of length.

The wavelength of a wave determines its properties such as its energy, frequency, and speed. In general, waves with longer wavelengths have lower frequencies and travel at slower speeds, while waves with shorter wavelengths have higher frequencies and travel at faster speeds.

Here in the Question,

The relationship between the wavelength (λ), frequency (f), and wave speed (v) of a wave is given by the equation:

v = λf

We are given the speed of the water wave (v) as 3.0 m/s and the frequency (f) as 4.0 Hz.

Plugging these values into the equation, we get:

3.0 m/s = λ x 4.0 Hz

Rearranging the equation to solve for the wavelength, we get:

λ = v/f = 3.0 m/s ÷ 4.0 Hz = 0.75 m

λ   = 0.75 m

Therefore, the wavelength of the water wave is 0.75 meters.

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Answer:

if you mean the regions during slavery, North, but if in general, East. (think East Coast)

Answer:

For the first one shown, the answer is Directly Proportional, The second one is Inversly Proportional, and the last is fourtl times the original value

Answer:

D: 2π/√k0

Explanation:

I got it right

The slope of the line of best fit is the quantity 2π/√ko.

The line of best fits is used to show the relationship between two variables. The nature of the graph shows the relationship between the variables.

We can see that this is a graph of the period of oscillation against the square root of the mass of the body. The slope of the line of best fit is the quantity 2π/√ko.

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Answer:

The elastic potential is 1/2 as much.

Explanation:

The reason I say this is because of you take a new rubber band, after stretching the first time, all the way until it doesn't snap, you stretch it again and there's not as much resistance as when it was new.

I hope this helps.

Answer:

Explanation:

The resultant would be a combination of the two forces. We need to add them together since they are exerting a force in the same direction.

10+30= 40 N of force

Answer:

Acceleration = 1.61 m/s²

Explanation:

Given the following data:

Force = 460N

Mass = 286kg

To find the acceleration;

Force = mass * acceleration

Substituting into the equation, we have;

460 = 286 * acceleration

Acceleration = 460/286

Acceleration = 1.61 m/s²

Answer:

What is the half-life of isotope X?  25 seconds

How many radioactive atoms of isotope X are left after 3 half-lives? 13

How many half-lives must have occurred if only 7 atoms of isotope X are left? 4

Explanation:

The half-life of isotope X is 25 seconds

The radioactive atoms of isotope X left after 3 half-lives are 13

Number of half-lives must have occurred if only 7 atoms of isotope X  left are 4.

Half life is the time taken by a radioactive material for the radioactivity of to reduce by half its original value.

The half life equation is:

A = A₀ (½)^(t / T)

where A is the final amount, A₀ is the initial amount, t is the amount of time, and T is the half life.

The half-life of isotope X is 25 seconds

The radioactive atoms of isotope X left after 3 half-lives are 13

Number of half-lives must have occurred if only 7 atoms of isotope X  left are 4.

Thus, the questions are answered.

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Answer:

17.3 miles

Explanation:

Answer:

The wave diagramed in blue.

Explanation:

The reason for this is because frequency is explained as the number of times something has occurred in a certain period of time.

Here, we are talking about wavelength, so the frequency is the number of times the wave can oscillate in this time length.

Say we make dots on the middle of each downward slope. How long does it take to get to each dot compared to the other diagram? The answer is the one with the least amount of time. The wave diagramed in blue.