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Luden [163]
3 years ago
10

What is the momentum of 15 kg bicycle moving at 12 m/s

Physics
1 answer:
azamat3 years ago
8 0
And the answer is 5/4 and decimals to 1.25.
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How does resistant affect the current in a cirtuit
Burka [1]
Resistance reduces the current. If there is more resistance, there is less current.
7 0
3 years ago
Please help me quickly!
Hatshy [7]

Answer:

Living Things

Explanation:

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7 0
3 years ago
A book is sitting on a desk. what best describes the normal force acting on the book
Margarita [4]

the upward force the desk pushes on the book.

from the free body diagram of the book, it is clear that on the book, there are two forces acting.

1) normal force F by the desk in Upward direction.

2) force of gravity by earth in downward direction.

The Upward normal force by the desk on the book balances the force of gravity by earth in downward direction. that is why the book remains stationary on the desk.

7 0
3 years ago
Read 2 more answers
While working out, a man performed 375 J of work in 11 seconds. What was his power?
Sidana [21]
Power is determined by work/time.
We have P = W/T as our formula.
There is 375J of work, and 11s of time.
Plug in 375J for Work, and 11s for Time.
P = 375/11
Our power is 34.09.
Hope this helps!
8 0
3 years ago
Read 2 more answers
You and your friend Peter are putting new shingles on a roof pitched at 25 ∘ . You're sitting on the very top of the roof when P
Art [367]

Answer:

Explanation:

Frictional force acting on the box = mg cos 25 x μ where μ is coefficient of friction

= 2.4 x 9.8 x cos 25 x .51 = 10.87 N

Weight of the box acting along the incline = mg sin 25 = 9.94 N

Net force = 10.87 - 9.94 = .93 N . It will create a deceleration of .93 / 2.4

= .3875 m /s² in the box.

v² = u² - 2 a s

v = 0 , a = .3875 , s = 5.4 m

= = u² - 2 x .3875 x 5.4

u = 2.045 m /s

6 0
3 years ago
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