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Vesnalui [34]
3 years ago
6

Suppose you are helping a friend move. The friend asks you stand in the back of a pickup truck to hold a piano because there is

no rope available to tie it down. Explain why you should refuse this request.
Physics
1 answer:
Maslowich3 years ago
5 0

<u><em>Explanation:</em></u>

This exposes the individual to danger. <em>Remember</em>, the Newton Law of motion which says that an object under the state of rest will remain in that state (inertia) unless when acted upon by an external force.

In this scenario, standing at the back of the pickup truck presents danger especially if the truck suddenly stops; this individual would experience an upward thrust due to inertia that may disbalance him.

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What will happen to the astronaut when the jets produce these four forces: 10N, 10N, 9N, 9N?
sukhopar [10]
The astronaut would go the opposite direction due to Newton’s third law of -10N, -10N, -9N, -9N

Let me know if this helped you, please rank this was the brainlist answer if possible, thanks!
6 0
4 years ago
In what situations do Newton’s laws of motion NOT apply?
jok3333 [9.3K]

Answer:

In a naive or very general sense, it appears that Newton's combined first and second law, F = ma , does not always work. On a fairground ride such as a merry-go-round, or on a turning bus, unrestrained objects have unexplained horizontal accelerations.

7 0
3 years ago
What is the best explanation of work?
Margarita [4]

Answer:

<u>Work done by the force acting on a body is defined as the product of force and displacement of the body in the direction of the force.</u><u> </u> It is a scalar quantity. Force acting on the body must produce a displacement for the work is to be done by the force. Thus, for the work to be done, the following conditions must be fulfilled:

A force must be applied and the applied force must produce a displacement in any direction except perpendicular to the direction of the force.

Mathematically,

work = force \times  \: displacement

( in the direction of force)

i.e W= F•D

The SI unit of force is Newton (N) and that of displacement of a metre (M). So the unit of work is Newton metre(Nm) which is joule (J).

Thus, one joule work is said to be done when one Newton force displaces a body through one metre in its own direction.

Hope this helps...

Good luck on your assignment..

3 0
3 years ago
A visitor at a Michigan lighthouse is trying to measure the height of the lighthouse. She has a big spool of string, but she doe
Pie

The height of the light house is 17.86m.

To find the answer, we have to know about the simple pendulum.

<h3>How to find the height of the light house?</h3>
  • We have the expression for time period of the pendulum as,

                       T=2\pi \sqrt{\frac{l}{g} } \\

where, g is acceleration due to gravity, and l is the length of the pendulum.

  • For the pendulum with time period T kept at some height under the influence of gravity, then the height will be equal to,

              h=(\frac{T}{2\pi }) ^2g=(\frac{8.48}{2*3.14}) ^2*9.8=17.86m

Thus, we can conclude that, the height of the light house is 17.86m.

Learn more about the simple pendulum here:

brainly.com/question/23269083

#SPJ1

4 0
2 years ago
Join if u r free id pass in bio​
Basile [38]

Answer:

folllow

Explanation:

soon soon gs a ayre j will join meet

3 0
3 years ago
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