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Leona [35]
2 years ago
13

When applying a horizontal force of 30N, an object of mass 6 kg accelerates at 4m/s2. The force of friction on the surface must

be ___ N
Physics
1 answer:
Rus_ich [418]2 years ago
4 0
Using Newton's Second Law, F = ma, where F is the net force

So the net force is:

F = (6kg)(4m/s^2) = 24N

Since you are applying a horizontal force of 30N, we can find the force of friction by the difference of the net force and the applied force.

30N-24N = 6N

F_{f} = 6N
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diagram: see image, x-component: 84.3 N, acceleration: 4.38 m/s^2

Explanation:

(see image for further explanation)

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3 years ago
These types of electromagnetic waves are listed in order of increasing frequency:
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Answer:

B. X-rays

Explanation:

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Electromagnetic waves with a high frequency and small wavelength will have higher energy compared to those with low frequency and high wavelength.

X-rays are one the most energetic waves on the periodic table. They have a very high frequency and low wavelength.

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2 years ago
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What was the average velocity for the entire trip?
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Answer:

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6 0
2 years ago
two objects are thrown from the top of a tall building and experience no appreciable air resistance. one is thrown up and the ot
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Answer:

The two objects are traveling at the same speed.

Explanation:

Neglecting air resistance, an object that is thrown up from the top of a tall building has the same speed as the second object thrown down from the top of the same tall building since the initial speed is the same.

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3 years ago
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Answer:

1.125m/s^2

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a = ?

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Substituting the values into the formula above

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225/200 = 200a/200

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8 0
2 years ago
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