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Andreas93 [3]
3 years ago
6

A person with mass 65 kg, standing still, throws an object at 4 m/s. If the

Physics
1 answer:
fenix001 [56]3 years ago
7 0

Explanation:

Momentum before = momentum after

m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂

(65 kg) (0 m/s) + m (0 m/s) = (65 kg) (-3.5 m/s) + m (4 m/s)

m ≈ 57 kg

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Xelga [282]

Answer:

350 Kg

Explanation:

We use the Work Formula:

W = Force . Distance

33.000 Joules = Force . 6

Force = 5500 Newtons

Force = Mass . Acceleration

5500 = Mass . 10

Mass = 550

550 - 200 = 350 Kg

5 0
3 years ago
A sock with a mass of 0.03 kg is stuck to the inside of a clothes dryer spins
ValentinkaMS [17]

Answer:

15.71 m/s

Explanation:

We are given;

Time; t = 0.2 s

Radius; r = 0.5 m

The circumference will give us the distance covered.

Formula for circumference is 2πr

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3 years ago
Charles law increases keep pressure constant then you observe blank
OLga [1]

If you decrease the pressure of a fixed amount of gas, its volume will increase.

7 0
3 years ago
In the picture below, label which particle is the solute and which is the solvent ​
klasskru [66]
The black circles are the solvent and the open circles are the solute
8 0
3 years ago
Which of the following is the best definition of a closed system?
lisov135 [29]

The answer is either

b A system in which Newton's Laws are valid

or

c A system in which there are no external forces.

Explanation:

not a, and not d

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A closed system obeys the conservation laws in its physical description.

4 0
3 years ago
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