All categories

3 years ago

I’ll give brainliest!! please help and answer correctly! plsss answer quick

Physics

1 answer:

Rashid [163]3 years ago

6 0

Answer: The motion of the object will remain the same

Explanation:

You might be interested in

A rug sits in a sunny place on the floor for a long time. Kiara thinks that light from the sun can cause the rug’s color to fade

laiz [17]

Answer:

Yes, the sun can fade the color of the rug.

Explanation:

6 0

2 years ago

A man can lift a mass of 200kg onThe surface of the earth. what is the amount of mass he can lift on the surface of the moon?

Arlecino [84]

Answer:

1,211.1 kg.

Explanation:

the force of gravity is less on the moon than on earth, so if the man can lift 200kg on earth, he could lift a greater amount on the moon because there is less resistance from gravity.

To know the amount of mass he can lift on the moon, we first need to know the amount of weight that is equivalent to those 200kg here on earth. This because the weight of the object is equal to the force that must be applied to lift it, and that force is applied by the man and it will be the same here and on the moon.

We calculate weight using the formula:

$w=mg$

where $w$ is the weight of the object (the force with which the earth attracts the object) $m$ is the mass and g the acceleration of gravity.

$w=200g$

for earth the acceleration due to gravity is: $g=9.81m/s^2$

thus:

$w=(200kg)(9.81m/s^2)\\w=1962N$

now we use this value to calculate the mass he can lift on the moon, since for the moon $g=1.62m/s^2$ .

we use the same equation, w =mg substituting w = 1962N and $g=1.62m/s^2$ :

$w=mg\\\\1962N=m(1.62m/s^2)\\\\m=\frac{1962N}{1.62m/s^2}\\\\ m=1,211.1kg$

he can lift 1,211.1 kg.

You can also find the result using the approximate value of the acceleration of gravity on the moon as g/6, where g is the acceleration on earth.

8 0

4 years ago

Can sound travel through space? Why or why not?

DiKsa [7]

Answer:

I think sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound. If you are sitting in a space ship and another space ship explodes, you would hear nothing.

Explanation:

5 0

3 years ago

*Brainliest if answered with in 5 min*

levacccp [35]

Your answer is going to be 0 degrees Kelvin!

8 0

3 years ago

Read 2 more answers

The pulley system below uses a gasoline engine to raise a drill head up through a smooth drill pipe. The engine provides a const

polet [3.4K]

NB: The diagram of the pulley system is not shown but the information provided is sufficient to answer the question

Answer:

Power = 2702.56 W

Explanation:

Let the power consumed be P

Energy expended = E = mgh

height, h = 5 m

E = 80 * 9.8 * 5

E = 3920 J

$Power = \frac{Energy}{time}$

To calculate the time, t

From F = ma

F = 900 N

900 = 80 a

a = 900/80

a = 11.25 m/s²

From the equation of motion, $s = ut + 0.5at^{2}$

The drill head starts from rest, u = 0 m/s

$5 = 0 * t + (0.5*11.25*t^{2} )\\5 = 5.625t^{2}\\t^{2} = 5/5.625\\t^{2} = 0.889\\t = 0.943 s$

Power, P = E/t

P = 3920/0.0.943

P = 4157.79 W

But Efficiency, E = 0.65

P = 0.65 * 4157.79

Power = 2702.56 W

6 0

3 years ago