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grigory [225]
2 years ago
10

PLEASE HELP QUICKLY!!

Physics
2 answers:
Assoli18 [71]2 years ago
7 0

O a. How fast an object falls depends on its mass.

IS FALSE

Explanation:

Mass does not affect the speed of falling objects, assuming there is only gravity acting on it.

tensa zangetsu [6.8K]2 years ago
6 0

Answer:

A

Explanation:

took the test today at school, got a 95.

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To test the quality of a tennis ball, you drop it onto the floor from a height of 4.00 m. It rebounds to a height of 2.00 m. If
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Answer:

Part a)

a = 1260.3 m/s^2

Part b)

Direction = upwards

Explanation:

When ball is dropped from height h = 4.0 m

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v_f^2 - v_i^2 = 2 a d

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Average acceleration is given as

a = \frac{v_f - v_i}{\Delta t}

a = \frac{6.26 - (-8.86)}{12.0 \times 10^{-3}}

a = 1260.35 m/s^2

Part B)

As we know that ball rebounds upwards after collision while before collision it is moving downwards

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3 years ago
Observe yourself breathing and count the number of times you inhale per second. During each breath you probably inhale 0.66 L of
Pavel [41]

To solve this exercise it is necessary to apply the concepts related to Robert Boyle's law where:

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V = Volume

T = Temperature

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PV=nRT

n = \frac{PV}{RT}

n = \frac{(1)(0.1386)}{(0.0821)(293)}

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\#Molecules = 5.761*10^{-3}*6.022*10^{23}

\#Molecules = 3.469*10^{21} molecules

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Newton's first law of motion states that. an object on the rest or motion is stay the same unless external force applied on it.
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Which of the following statements is true regarding how blackbody radiation changes as the temperature of the radiating object i
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The statement "<span>The maximum intensity increases, and the peak wavelength decreases."</span> is true regarding how black body radiation changes as the temperature of the radiating object increases. Temperature is directly proportional to intensity but inversely proportional to the wavelength. 
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Electric field at the test charge is 921600000 N/C
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