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Ann [662]
3 years ago
8

A ball is dropped from rest. how fast is the ball going after 3 seconds​

Physics
1 answer:
Airida [17]3 years ago
5 0

Answer:

v = 29.4m/s

Explanation:

Since the ball is dropped at rest,

u = 0m/s

a = 9.81m/s²

Using

v = u + at

After 3 seconds,

v = 0 + (9.81)(3)

v = 29.4m/s

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Consider the following three statements: (i) For any electro-magnetic radiation, the product of the wavelength and the frequency
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Answer:

A and B

Explanation:

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<u>Option A is correct.</u>

Given, Frequency = 1\times 10^{18}\ Hz

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<u>Wavelength = 3.0 Å</u>

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3 years ago
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What is true about X-rays and microwaves?
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3 years ago
A ball is thrown straight upward and rises to a maximum
Leviafan [203]

Answer:

Explanation:

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v_f = 0.5 v_i

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3 years ago
Write down at least 3 equations as you solve them
Step2247 [10]

Answer:

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