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3 years ago

What is the distance covered by a freely falling object 6 seconds after being dropped? After 10 seconds?

Physics

1 answer:

Monica [59]3 years ago

5 0

Answer:

Distance s=ut+1/2 at^2

If it’s released then this becomes

s=1/2at^2

s=1/2 *9.81*9

s=44.1 m

Explanation:

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Moon effect. Some people believe that the Moon controls their activities. The Moon moves from being directly on the opposite sid

Hatshy [7]

Answer:

6.9%

Explanation:

We are given that

Distance between Earth and Moon=d= $3.82\times 10^8$ m

Radius of Earth=r= $6.37\times 10^6 m$

a.Initially gravitational pull

$F=\frac{GmM}{(r+d)^2}$ .....(1)

After changing

Gravitational pull

$F'=\frac{GmM}{(d-r)^2}$ .....(2)

Equation (2) divided by equation (1)

$\frac{F'}{F}=\frac{(r+d)^2}{(d-r)^2}$

$\frac{F'}{F}=\frac{(3.82\times 10^8+6.37\times 10^6)^2}{(3.82\times 10^8-6.37\times 10^6)^2}=1.069$

Increases in gravitational pull= $\frac{F_2}{F_1}-1=1.069-1=0.069\times 100=6.9$ %

4 0

4 years ago

Timothy wants to know how far his math class is from the orange tree across the street from the school. His feet are ideal feet

VMariaS [17]

The conversion factor can be used to change values from one unit to another.

<h3>What is conversion factor?</h3>

The conversion factor can be used to change values from one unit to another. We know that there are various units that could be used for the measurement of a quantity. The conversion factor would enable us to change the unit in which a value is given.

Without the conversion factor, a value in meters can not be expressed in inch or a values expressed in torr be given in bars or millimeter mercury for ease of computation.

This ability to change from one value to another has made the solution of mathematical problems much easier and helps us to have a better grasp of the computational procedure that could be used in the calculation that we want to do for a particular of given problem.

Now the conversion factor is;

1 foot = 3281 kilometers

Hence;

159 feet = 159 * 3281

= 521679 kilometers

Learn more about conversion factor:brainly.com/question/23510660

#SPJ1

3 0

2 years ago

Allison stands 180 meters away from a steep canyon wall. She shouts and hears the echo of her voice one second later. What is th

ratelena [41]

Answer:

V = S / t speed of wave

V = 2 * 180 m / 1 sec = 360 m/s speed of sound wave

3 0

2 years ago

Marcy pulls a backpack on wheels down the 100 m hall. The 60N force is applied at an angle of 30° above the horizontal. How much

shutvik [7]

Work= Fcos∆×S

W=60N×cos 30⁰×100

W=60×0.866×100=5196.1J

6 0

3 years ago

A car starts from rest and accelerates at 2m/s² for 30 seconds. He then travel and constant speed for 1 minute and finally decel

zhenek [66]

Answer:

Explanation:

15 miles

6 0

3 years ago