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3 years ago

An object on the moon will weigh 1/6th of what it does on earth but have the same mass. Why is that?

Physics

1 answer:

elena55 [62]3 years ago

8 0

Answer:

Because the weight depends of the gravity

Explanation:

This is because weight and mass are different, in order to better understand this problem we will apply an example with real values, which will help us to determine a person's weight.

A man has a mass of 80 [kg] on Earth when measuring his weight he realizes that it is 784.9 [N] and on the moon it is 130.8 [N]

On Earth

$g_{e} = 9.81[m/s^2]\\g_{m} = 1.635[m/s^2]$

Where:

g = gravity

Weight on the moon

Wm = 80 * 1.635

Wm = 130.8[N]

Weight on the earth

We = 80 * 9.81

We = 784.8[N]

In this way we can see that the weight depends on the gravity of where the person is located.

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In everyday situations, it does seem that a force is needed to keep an object, for example the shopping trolley, moving at a con

Jobisdone [24]

Answer:

Because of friction

Explanation:

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2 years ago

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A 2 kg rock is at the edge of a cliff 20 meters above a lake The rock becomes loose and falls toward the water below. Calculate

natima [27]

Answer:

The potential energy (P.E) at the top is 392 J

The kinetic energy (K.E) at the top is 0 J

The potential energy (P.E) at the halfway point is 196 J.

The kinetic energy (K.E) at the halfway point is 196 J.

Explanation:

Given;

mass of the rock, m = 2 kg

height of the cliff, h = 20 m

speed of the rock at the halfway point, v = 14 m/s

The potential energy (P.E) and kinetic energy (K.E) when its at the top;

P.E = mgh

P.E = (2)(9.8)(20)

P.E= 392 J

K.E = ¹/₂mv²

where;

v is velocity of the rock at the top of the cliff = 0

K.E = ¹/₂(2)(0)²

K.E = 0

The potential energy (P.E) and kinetic energy (K.E) at the halfway point;

P.E = mg(¹/₂h)

P.E = (2)(9.8)(¹/₂ x 20)

P.E = 196 J

K.E = ¹/₂mv²

where;

v is velocity of the rock at the halfway point = 14 m/s

K.E = ¹/₂(2)(14)²

K.E = 196 J.

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2 years ago

The magnetic field around a current carrying wire at a distance of 1cm is twice as strong as 2cm . How does the Ford strength at

masha68 [24]

Answer:

It is half the field strength at 0.5cm

Explanation:

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3 years ago

Children between the ages of 6 to 11 are within the developmental stage referred to as.... Middle childhood early childhood adol

tensa zangetsu [6.8K]

Answer:

Middle childhood

Explanation:

Middle childhood happens around ages 6 to 12, is a stage in the human development characterized by the steady rate of physical growth of the individual in contrast with the fast rate of emotional, cognitive and emotional development that will prepare them for future stages (adolescence and adulthood).

I hope you find this information useful and interesting! Good luck!

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3 years ago

Calculate the slope of the line on the graph using the formula:

gulaghasi [49]

Answer:

The standard form of a straight line is

y = m x + b where m is the slope

m = (y2 - y1) / (x2 - x1)

if the ordinate is formed by v instead of y then

m = (v2 - v1) / (x2 - x1) normally for constant acceleration the slope is

(v2 - v1) / (t2 - t1) = a = m

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2 years ago