3 years ago

If a forces of 40 newtons moves a cart a distance of 9 meters, the work done is?

Physics

1 answer:

qwelly [4]3 years ago

3 0

360 Newtons. Multiply 90 by 4

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Which of the following states that all matter tends to "warp" space in its vicinity and that objects react to this warping by ch

Natasha2012 [34]

There are no choices on the list you provided that make such a statement,
and it's difficult to understand what is meant by "the following".

That statement is one way to describe the approach to 'forces of gravity'
taken by the theory of Relativity.

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4 years ago

while standing on the sidewalk facing the road, you see a bicyclist passing by toward your right. in the reference frame of the

cricket20 [7]

Answer:

Consider frames X and Y:

If X sees Y moving to his right then Y must see X moving to his right.

If this is not true then one can choose one frame over the other ( a favored frame and this is not allowed)

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3 years ago

Every sample of a pure substance has exactly the same composition and the same properties. true or false

kirill115 [55]

False, that does not apply to some

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3 years ago

Use the worked example above to help you solve this problem. An airboat with mass 4.30 102 kg, including the passenger, has an e

umka21 [38]

Answer:

a) a = 1,865 m / s² and b) t = 8.1 s

Explanation:

a) Let's use Newton's second law to find acceleration, we can work the equation in scalar form because displacement and force have the same direction

F = m .a

a = F / m

a = 8.02 10² /4.3 10²

a = 1,865 m / s²

b) We use kinematic relationships in one dimension

vf = vo + at

vf = 0 + a t

t = vf / a

t = 15.1 / 1.865

t = 8.1 s

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3 years ago

How would the attractive force between two spheres change if the mass of one sphere was doubled?

Dominik [7]

The force of attraction between two objects can be illustrated using Newton's Law of Universal Gravitation.
The relation between the different parameters is shown in the attached image.

Now, from the relation, we can deduce that the force between the two objects is directly proportional to the masses of the two objects.

This means that, if the mass of one object is doubled, then the force between the two objects will also be doubled.

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3 years ago