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MakcuM [25]
3 years ago
14

What real world examples show no work being done? Can you think of examples other than resisting the forces of gravity?

Physics
2 answers:
vlabodo [156]3 years ago
8 0
Moving dumblees up and down
Lesechka [4]3 years ago
7 0
I need more info man then i can help you. 
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A 45.0 kg ice skater needs a 25 N horizontal force to get moving on a smooth ice surface. What is the coefficient of friction be
SVEN [57.7K]
The horizontal force : f = k*N
k- coefficient of friction
k = f /N
N = m * g = 45 kg * 9.81 m/s² = 441.45 N
k = 25 N : 441.45 N = 0.057
Answer C) 0.057
7 0
3 years ago
A 20.6 g marble sliding to the right at 59.6 cm/s overtakes and collides elastically with a 10.3 g marble moving in the same dir
Likurg_2 [28]

Answer:29.8 cm/s

Explanation:

Given

mass of marble A is m_a=20.6\ gm

Initial velocity of marble A is u_a=59.6\ cm/s

mass of marble B is m_b=10.3\ gm

Initial velocity of marble B u_b=14.9\ cm/s

After collision marble B moves with velocity of v_b=74.5\ cm/s

Conserving momentum

m_au_a+m_bu_b=m_av_a+m_bv_b

20.6\times 59.6+10.3\times 14.9=20.6\times v_a+10.3\times 74.5

v_a=\frac{20.6\times 59.6-10.3(74.5-14.9)}{20.6}

v_a=29.8\ cm/s                                      

4 0
4 years ago
The latin word (Cirro) mean that the clouds are in high level <br><br> True of false?
Ivahew [28]

Answer:

False

Explanation:

The Latin word "Cirro" means "curly" or "curl of hair" as in a cirrocumulus cloud. Cirrocumulus clouds are wispy clouds, and while they do appear high in the sky, the word "cirro" does not mean high in level.

Therefore, the answer is False.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

6 0
3 years ago
Read 2 more answers
Which wave causes the medium to vibrate only in a direction parallel to the wave’s motion?
vivado [14]
None of above/D (but I'm not very sure)
5 0
4 years ago
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A charged particle is located in an electric field where the magnitude of the electric field strength is 2.0x10^3 newtons per co
Alexxandr [17]

Answer:

20.7

Explanation:

:0 because basis  of the daily occured

6 0
3 years ago
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