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dangina [55]
3 years ago
7

In which situation is the maximum possible work done? A. when the angle between the force and displacement is 0° B. when the ang

le between the force and displacement is 180° C. when the angle between the force and displacement is 45° D. when the angle between the force and displacement is 90°s the work done by the force on the box? A. 6.0 × 101 joules B. -6.0 × 101 joules C. 5.9 × 102 joules D. -5.9 × 102 joules
Physics
2 answers:
KatRina [158]3 years ago
8 0

Answer:

c

Explanation:

Flauer [41]3 years ago
7 0

Answer:

C

Explanation:

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The weakest type of friction that occurs between solid surfaces is _____ friction
Evgen [1.6K]

Answer:

Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases.

Explanation:

4 0
3 years ago
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How high was a brick dropped from if if falls in 2.5 seconds?
jenyasd209 [6]
Using the kinematic equation d =  V_0 * t  + 1/2 * a * t^2, where d is height you can rewrite this to be d = 1/2*g*t^2 or 4.9t^2
g = a because this is a free fall 
d = 1/2 * 9.81m/s^2 * 2.5^2
d = 30.65625m
d = 30.7m
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3 years ago
An iron ball is dropped at a height of 10 m from the surface of the moon.
galben [10]

Answer:

3.51s

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3 years ago
A 4kg object has a momentum of 12 kg*m/s, what is the objects velocity?
Bezzdna [24]
Momentum = mass x velocity
12 = 4 x v | ÷ both sides by 4
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8 0
2 years ago
A person just supports a mass of 20kg suspended from a rope.
Georgia [21]

Answer:

F = 200 N

Explanation:

Given that,

The mass suspended from the rope, m = 20 kg

We need to find the resultant force acting on the rope. The resultant force on the rope is equal to its weight such that,

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g is acceleration due to gravity

Put all the values,

F = 20 kg × 10 m/s²

F = 200 N

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7 0
3 years ago
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