2 years ago

Which graph shows the fastest speed?

Physics

1 answer:

Elodia [21]2 years ago

5 0

Answer:

Where is the graph? I need a picture

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Answer: 9 km/h

Explanation:i’m pretty sure

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2. What is the speed of a car that travels 73.4 kilometers (km) in 5 hours?

maksim [4K]

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3 years ago

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You are designing a generator with a maximum emf 8.0 V. If the generator coil has 200 turns and a cross-sectional area of 0.030

shutvik [7]

Answer:

7.1 Hz

Explanation:

In a generator, the maximum induced emf is given by

$\epsilon= 2\pi NAB f$

where

N is the number of turns in the coil

A is the area of the coil

B is the magnetic field strength

f is the frequency

In this problem, we have

N = 200

$A=0.030 m^2$

$\epsilon=8.0 V$

B = 0.030 T

So we can re-arrange the equation to find the frequency of the generator:

$f=\frac{\epsilon}{2\pi NAB}=\frac{8.0 V}{2\pi (200)(0.030 m^2)(0.030 T)}=7.1 Hz$

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2 years ago

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Calculate the Earth's linear momentum, in kilogram meters per second.

Irina18 [472]

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3 years ago

How long would it take for Sofia to walk 300 meters if she is walking at a velocity of 2.5 m/s?

Vaselesa [24]

Answer:

Time=120seconds

Explanation:

S=300m

V=2.5m/s

t=?

V=S/t

t=S/V

t=300/2.5

t=120 second

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3 years ago

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