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2 years ago

A car starts from the rest and retains the acceleration of 4m/S2 in 20 second.calculate its final velocity

Physics

1 answer:

crimeas [40]2 years ago

5 0

Answer:

80m/s

Explanation:

v=u +at

but the car start from rest so intial velocity (u) =o

therefore,

v=0+4(20)

v=80m/s

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The overall length of a piccolo is 32.0 cm. The resonating air column vibrates as in a pipe that is open at both ends. (a) Find

lana66690 [7]

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lowest frequency = 535.93 Hz

distance between adjacent anti nodes is 4.25 cm

Explanation:

given data

length L = 32 cm = 0.32 m

to find out

frequency and distance between adjacent anti nodes

solution

we consider here speed of sound through air at room temperature 20 degree is approximately v = 343 m/s

lowest frequency will be = $\frac{v}{2L}$ ..............1

put here value in equation 1

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3 years ago

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3 years ago

A car starts from the rest and retains the acceleration of 4m/S2 in 20 second.calculate its final velocity​

A car starts from the rest and retains the acceleration of 4m/S2 in 20 second.calculate its final velocity