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Tresset [83]
3 years ago
12

1. A dog of mass 5 kg jumps on a table of mass 30 kg. As the dog walks around on the table, what is the average force that the t

able applies to the dog? ​
Physics
1 answer:
Oksana_A [137]3 years ago
5 0

Answer:

50N

The table is managing to keep the dog up, the dog is not moving up or down so the force that the table applies to the dog must be equal to the dogs weight - I draw this conclusion from Newton's 3rd law.

W= mg

W = 5 × 9.8

W = 49N

round to.one significant figure = 50N

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Skater 1 has a mass of 45 kg and is at rest. Skater 2 has a mass of 50 kg and is moving slowly at a constant velocity of 3.2 m/s
algol13

Answer:

None

Explanation:

Force, F is given by ma where m is the mass of an object and a is acceleration

Acceleration is the rate of change in velocity per unit time. Since skaters with mass of 75 kg and 50 kg are moving at a constant speed, there is no acceleration hence F=50*0=0 and F=75*0=0

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Therefore, none of the skaters will experience a greater net force.

3 0
3 years ago
Which process can be used to power your Home? A solar thermal energy B solar electric energy C both solar thermal energy and sol
Ostrovityanka [42]
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How close would you have to bring 1 C of positive chargeand 1 C of negative charge for them to exert forces of 1 N onone another
Harman [31]

Answer:

94,800 m

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