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KATRIN_1 [288]
3 years ago
9

This is an object's change in motion per unit time in a specified direction.

Physics
2 answers:
timurjin [86]3 years ago
7 0

Answer:

Velocity

Explanation:

Velocity is an object's change in motion per unit time in a specified direction

Katarina [22]3 years ago
6 0

Answer:

Velocity

Explanation:

Motion can be described as change in position of an object in a time interval.

Velocity describes an object's change in motion per unit time in a specified direction.

Velocity is a vector quantity. It has magnitude as well as direction. It represents change in displacement over a time interval.

velocity=\frac{Displacement}{time}

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Please answer both questions and not just one. Thanks!
Margarita [4]
It would be d and c hoped i helped!
8 0
3 years ago
An organ pipe open at both ends has a length of 0.80 m. If the velocity of sound in air is 340 m/s, what is the frequency of the
bazaltina [42]

Answer:

the frequency of the second harmonic of the pipe is 425 Hz

Explanation:

Given;

length of the open pipe, L = 0.8 m

velocity of sound, v = 340 m/s

The wavelength of the second harmonic is calculated as follows;

L = A ---> N   +  N--->N   +   N--->A

where;

L is the length of the pipe in the second harmonic

A represents antinode of the wave

N represents the node of the wave

L = \frac{\lambda}{4} + \frac{\lambda}{2} + \frac{\lambda}{4} \\\\L = \lambda

The frequency is calculated as follows;

F_1 = \frac{V}{\lambda} = \frac{340}{0.8} = 425 \ Hz

Therefore, the frequency of the second harmonic of the pipe is 425 Hz.

5 0
3 years ago
Can someone help me with this question
monitta

Answer:

hypothesis , hope it helps

Explanation:

7 0
3 years ago
Read 2 more answers
A ball of mass m on a string of length L is attached to a pivot. The ball is released from rest while the string is parallel to
mash [69]

Answer:

L/2

Explanation:

Neglect any air or other resistant, for the ball can wrap its string around the bar, it must rotate a full circle around the bar. This means the ball should be able to swing to the top position where it's directly above the bar. By the law of energy conservation, this happens when the ball is at the same level as where it's previously released vertically. It means the swinging radius around the bar must be at least half of the string length.

So the distance d between the bar and the pivot should be at least L/2

8 0
3 years ago
A cicada produces a sound of roughly 5000 Hz frequency. What category would that sound fall into?
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