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const2013 [10]
3 years ago
12

1.How does gravity change your weight? 2.How do force work in nature?

Physics
1 answer:
kodGreya [7K]3 years ago
3 0

In a stronger gravitational field a given mass will have a larger weight.

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What is the average acceleration of a rocket that travels 400m in 5s if it starts from rest?​
Pavel [41]

Answer:

<h2>32m/s^2</h2>

Explanation:

We want to find the acceleration based on the given data

Given

distance s=400m

time t= 5s

u= 0m/s since it started from rest

We apply the following expression

s=ut+1/2at^2

substituting we have

400=0*5+1/2*a(5)^2

400=25a/2

cross multiply

25a=400*2

25a=800

divide both sides by 25 we have

a=800/25

a=32m/s^2

The acceleration is 32m/s^2

4 0
3 years ago
Which shape below best describes the trajectory of a projectile? A. ellipse B. parabola C. spiral D. semicircle E. zigzag
jeka57 [31]
I believe the answer is B)

Hope this helps*

5 0
3 years ago
For a satellite to stay in orbit around Earth, it has to be moving forward very fast all the time. What force will make it fall
spayn [35]

Maintaining an orbit has nothing to do with the satellite's speed.
ANY (tangential) speed is enough to stay in orbit, if the satellite
just stays away from Earth's atmosphere.

If the satellite completely stops moving 'sideways' at all, and just
hangs there, then the forces of gravity between the satellite and
the Earth will pull them together ... the satellite will fall into the
atmosphere and then to the ground.

3 0
3 years ago
Read 2 more answers
A hot rod can accelerate from 0 to 60 km/h in 5.4 s.
mylen [45]

Answer:

<h2>a) Acceleration is 3.09 m/s²</h2><h2>b) Distance traveled is 45.05 m</h2><h2>c) Time taken to travel 250 m is 12.72 s</h2>

Explanation:

a) We have equation of motion v = u + at

      Initial velocity, u = 0 km/hr = 0 m/s

      Final velocity, v = 60 km/hr = 16.67 m/s  

      Time, t = 5.4 s

      Substituting

                       v = u + at  

                       16.67 = 0 + a x 5.4

                       a = 3.09 m/s²

      Acceleration is 3.09 m/s²

b) We have equation of motion s = ut + 0.5 at²

         Initial velocity, u = 0 m/s

         Acceleration, a = 3.09 m/s²

         Time, t = 5.4 s      

      Substituting

                       s = ut + 0.5 at²

                       s = 0 x 5.4 + 0.5 x 3.09 x 5.4²

                       s = 45.05 m

       Distance traveled is 45.05 m

c) We have equation of motion s = ut + 0.5 at²

         Initial velocity, u = 0 m/s

         Acceleration, a = 3.09 m/s²

         Displacement, s = 0.25 km = 250 m      

      Substituting

                       s = ut + 0.5 at²

                       250 = 0 x t + 0.5 x 3.09 xt²

                       t = 12.72 s

       Time taken to travel 250 m is 12.72 s

6 0
2 years ago
What is the weight of an object a mass of 90.0kg?
Natasha2012 [34]

Explanation:

it would be 198.4

you're welcoms

5 0
2 years ago
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