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mr_godi [17]
3 years ago
8

the police department determined that the force required to drag a 130 N(29 lb) car tire across the pavement at a constant veloc

ity is called 100N (23 lb ) specifications from the trucks manufacturer claim that the effecrive coefficient of kinetic friction between the tires and road for both new car and truck??
Physics
1 answer:
ki77a [65]3 years ago
4 0
The force of friction is given by:
f = μR, where μ is the friction coefficient and R is the reaction force, which will be equal to the weight.
100 = μ x 130
μ = 0.77
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Two pulses move in opposite directions on a string and are identical in shape except that one has positive displacements of the
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(c) When the two pulses completely overlap on the string forms a straight line.

A single disturbance that travels via a transmission medium is referred to as a pulse. This medium might be formed of stuff or a vacuum, and it might be endlessly large or finite in size.

Consider two pulses that are identical in shape and proceed in opposite directions along a string, with the exception that one has positive displacements of the string's elements while the other has negative displacements.

On the string, the two pulses blend together completely.

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The correct option is (c)

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6 0
1 year ago
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Answer:

the helis speed increased its speed by 35 m/s. Unless you are asking me what was the speed per second. if you were asking me for the speed per second then that would be a different answer

Explanation:

7 0
3 years ago
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irga5000 [103]
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2.  Why is the medulla the most vital part of the brain?       
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3 0
4 years ago
About once every 30 minutes, a geyser known as Old Faceful projects water 11.0 m straight up into the air. Use g = 9.80 m/s^2, a
Maurinko [17]

Answer:

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Explanation:

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g = acceleration due to gravity

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Put the value into the formula

0=u^2-2\times9.8\times11.0

u=\sqrt{2\times9.8\times11.0}

u=14.68\ m/s

Hence, The speed of the water is 14.68 m/s.

7 0
3 years ago
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anzhelika [568]
The cylinder has a volume of 37.46 cubic cm
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