3 years ago

Which factors affect the gravitational force between objects? Check all that apply

Physics

1 answer:

neonofarm [45]3 years ago

5 0

Answer:distance between objects and the masses of the objects

Explanation:

Gravitational force of attraction between two masses is directly proportional to the product of the masses and inversely proportional to the square of distance apart

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a cart rolls down a track. it starts from rest and attains a speed of 2.7 m/s in 3 s, what is the acceleration and distance trav

ruslelena [56]

Answer:

Acceleration and the distance traveled are 0.9 m/s² and 4.05 m

Explanation:

Given that,

Initail speed, u = 0

Final speed, v = 2.7 m/s

Time, t = 3 s

To find,

The acceleration and distance traveled.

Solution,

Acceleration is change in speed per unit time

$a=\dfrac{v-u}{t}\\\\a=\dfrac{2.7-0}{3}\\\\a=0.9\ m/s^2$

Let s is the distance,

$d=ut+\dfrac{1}{2}at^2\\\\\because u=0\\\\d=0+\dfrac{1}{2}\times 0.9\times 3^2\\\\d=4.05\ m$

So, acceleration and the distance traveled are 0.9 m/s² and 4.05 m

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3 years ago

Which law of motion accounts for the following statement? "An apple accelerates as it falls from a tree."

belka [17]

Although one could definitely directly connect an "apple falling" with Newton's first law of motion, which is gravity, since the question states about acceleration, then we can relate the statement to Newton's second law of motion, the law of acceleration.

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4 years ago

Read 2 more answers

A man run 300 meter west in 60 sec he run 100

Elenna [48]

And you asking how many meters can he run in 100 sec

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3 years ago

A train travels 400km in 2 hours. what is its velocity in km/hr?

Alex_Xolod [135]

Velocity = displacement / time
v = 400 / 2
v = 200 km/h

In short, Your Answer would be 200 km/h

Hope this helps!

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