3 years ago

WHO CAN ANSWER BOTH 14 and 15 WITH UNITS ILL PUT U AS BRAINLEST!

Physics

1 answer:

saw5 [17]3 years ago

4 0

Answer:

14. V=8

15. V=40

Explanation:

simplifying:

14. 4 32/8

V=8

15. 20 1000/50

V=40

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nika2105 [10]

Answer:

a) Option D

b) Option A

Explanation:

a) Option D

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b) Option A, Car F

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3 years ago

A wave is produced in a rope. The wave has a speed of 33 m/s and a frequency of 22 Hz. What wavelength is produced? 0. 67 m 0. 7

vekshin1

Answer:

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Explanation:

The formula for waves in terms of wavelength, speed and frequency is:

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2 years ago

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Oduvanchick [21]

The person driving the truck was killed
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3 years ago

A railroad car moves under a grain elevator at a constant speed of 3.20 m/s. Grain drops into the car at the rate of 240 kg/min.

dedylja [7]

Answer:

F = 768 N

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It is given that,

Speed of the elevator, v = 3.2 m/s

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We need to find the magnitude of force needed to keep the car moving constant speed. The relation between the momentum and the force is given by :

$F=\dfrac{dp}{dt}$