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3 years ago

Is it possible to accelerate and not speed up or slow down?

Physics

1 answer:

Sergeeva-Olga [200]3 years ago

5 0

Answer: No,

explanation: When the object is<u> neither</u> <em>speeding up or slowing down</em>, we can say that its speed is <u><em>constant</em></u>.

Hope this helps

Plz mark brainlesit

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Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about a vertical axis at their

Vera_Pavlovna [14]

Answer:

A = 2.36m/s

B = 3.71m/s²

C = 29.61m/s2

Explanation:

First, we convert the diameter of the ride from ft to m

10ft = 3m

Speed of the rider is the

v = circumference of the circle divided by time of rotation

v = [2π(D/2)]/T

v = [2π(3/2)]/4

v = 3π/4

v = 2.36m/s

Radial acceleration can also be found as a = v²/r

Where v = speed of the rider

r = radius of the ride

a = 2.36²/1.5

a = 3.71m/s²

If the time of revolution is halved, then radial acceleration is

A = 4π²R/T²

A = (4 * π² * 3)/2²

A = 118.44/4

A = 29.61m/s²

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3 years ago

RATIO of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is:

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Answer:

Explanation:

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3 years ago

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A. Write two or three sentences to describe the conductivity of an insulator. Explain its conductivity in terms of the electrons

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PART A)

Conductivity of insulator is very small as there is no free electrons to conduct the current trough that medium

So here number of conduction electrons are very less in insulators

PART B)

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Resistance of wire directly depends on its length so resistance of long wire will be more than the resistance of short wire

Resistance inversely depends on the area so if a wire has more crossectional area then its resistance must be small

PART C)

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it is given by formula

P = i V

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V = 120 volts

so power is given as

$P = 1.46 \times 120$

$P = 175.2 Watt$

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3 years ago

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The matter from the explosion can reach him, hitting him. He should be able to feel that.

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Answer:

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Explanation:

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