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RoseWind [281]
3 years ago
9

A 4.0 kg block is resting on a rough horizontal table. The

Physics
1 answer:
Novosadov [1.4K]3 years ago
6 0

Answer:

I have made a mistake in my answer

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๒гคเภɭץ ๓๏๔ร ςคภ รยςк ค ๔เςк ๒єςคยรє คɭɭ Շђєץ ๔๏ เร รՇєคɭ ק๏เภՇร Ŧг๏๓ ץ๏ย คภ๔ ץ๏ย ςคภՇ ๔๏ ภ๏Շђเภﻮ ค๒๏ยՇ เՇ
ElenaW [278]

Answer:

Ik it's sad it's ok tho

Explanation:

:'>

3 0
3 years ago
According to Newton's second law of motion what is force equal to
lubasha [3.4K]
Newton's second law of motion<span> can be formally stated as follows: The acceleration of an object as produced by a net </span>force<span> is directly proportional to the magnitude of the net </span>force, in the same direction as the netforce<span>, and inversely proportional to the mass of the object</span>
8 0
3 years ago
Read 2 more answers
A sound wave has a frequency of 776 Hz in air and a wavelength of 0.52 m. What is the temperature of the air? Relate the speed o
OLEGan [10]

Answer:

142.7650889

Explanation:

I think the answer above is correct. So to find the velocity of the wave you can do: frequency*wavelength = velocity

in your case, the velocity is equal to 403.5m/s

so we know that the 403.52 is the total velocity of the wave

and the equation: velocity at 0 degrees Celsius * \sqrt{{T}/{273}} where T represents temperature in Kelvins = veloctity

so we set 403.52 = 327*\sqrt{{T}/{273}} and solve for T

T will then equal the degree in Kelvins

so to convert from Kelvins to degrees celsius you subtract 273 from the Kelvins value and you are left with the degrees in Celsius which equals 142.7650889 degrees Celsius

5 0
3 years ago
Describe three events about matter and energy that cannot be explained
nekit [7.7K]

Answer:

As anything that has mass and takes up space. Matter is found in 3 major states; solid, liquid and gas. Atoms are the smallest particle of matter. They are so small that you cannot see them with your eyes or even with a standard microscope.

Have a good day! :D

Explanation:

4 0
3 years ago
What is the period of vibration for a wave with a frequency of 100 hertz?
Dmitriy789 [7]

The number of back-and-forth vibrations in a unit of time is an object's frequency. A complete back-and-forth vibration is one cycle. 1 Hz is one vibration or wave cycle per second!

3 0
3 years ago
Read 2 more answers
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