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prisoha [69]
3 years ago
6

A crate is given a big push, and after it is released, it slides up an inclined plane which makes an angle 0.52 radians with the

horizontal. The frictional coefficients between the crate and plane are (\muμs = 0.84, \muμk = 0.48 ). What is the magnitude of the acceleration (in meters/second2) of this crate as it slides up the incline?
Physics
1 answer:
vovangra [49]3 years ago
8 0

Answer:

a = 8.951 m/s²

Explanation:

given,

angle = 0.52 radians

μ_s = 0.84

μ_k = 0.48

acceleration = ?

using

F +  f = m a

mg sin θ +  μk mg cos θ = m a

a = g sin θ  + μk g cos θ

a = 9.8 x  sin 0.52 + 0.48 x 9.8 x  cos 0.52

a = 4.869 + 4.082

a = 8.951 m/s²

the magnitude of acceleration is a = 8.951 m/s²

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inessss [21]

Answer:

\Delta \theta = 56\,rad

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Explanation:

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4 0
3 years ago
The frequency of a wave is 200 Hz. The wavelength is 0.1 m. What is the period of the wave?
Aleks04 [339]
The formula for the period of wave is: wave period is equals to 1 over the frequency.waveperiod=\frac{1}{frequency}
To get the value of period of wave you need to divide 1 by 200 Hz. However, beforehand, you have to convert 200 Hz to cycles per second. So that would be, 200 cyles per second or 200/s.
By then, you can start the computation by dividing 1 by 200/s. Since 200/s is in fractional form, you have to find its reciprocal form and multiply it to one which would give you 1 (one) second over 200. This would then lead us to the value 0.005 seconds as the wave period.

wave period= 1/200 Hz
Convert Hz to cycles per second first
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Make 200/second as your divisor, so:

wave period= 1/ 200/s

get the reciprocal form of 200/s which is s/200

then you can start the actual computation:

wave period= 1 x s divided by 200

this would give us an answer of 0.005 s. 
6 0
3 years ago
Could anyone can help me for this question I don’t understand how I can do?!! Please it really important!!
stiv31 [10]
Im sry i cant help u
6 0
4 years ago
a ball is tossed straight up in the air to a maximum height of 25 meters before returning to the point that it was thrown, where
boyakko [2]

Answer:

height=25

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2 years ago
Which of the following is not a component of fitness? A. Cardiovascular fitness B. Muscular endurance C. Pulmonary endurance D.
Ne4ueva [31]

Answer:

C. Pulmonary endurance

Explanation:

I'm pretty sure it's "C" because cardiovascular and pulmonary endurance are the same thing and usually you'd hear cardiovascular more than pulmonary.

Sorry if I'm wrong!

7 0
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