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VARVARA [1.3K]
3 years ago
10

Where does energy go when an object hits the ground?

Physics
1 answer:
PolarNik [594]3 years ago
8 0
It turns into kinetic energy; as an object falls it loses potential energy and it can be transfer into friction into heat. 
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State Newton’s third law of motion.
victus00 [196]
A force is a push or a pull that acts upon an object as a results of its interaction with another object. ... These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction.
8 0
3 years ago
You flip a coin straight up if the coin reaches a high point of 0.25 m above where you released it what was the initial speed?
Julli [10]

Answer: 2.21 m/s

Explanation:

Given

Coin reaches a height of  0.25 m above the launch point

Suppose u is the initial speed of the coin

Using the equation of motion

\Rightarrow v^2-u^2=2as\\

Putting values

\Rightarrow 0^2-u^2=2\times g\times s=2\times (-9.8)\times 0.25\\\Rightarrow u^2=4.9\\\Rightarrow u=2.21\ m/s

Thus, the initial velocity is 2.21 m/s

6 0
3 years ago
Can the validity of a model be limited, or must it be universally valid? How does this compare to the required validity of a the
Vilka [71]

The model is based on hypothesis  to get an initial idea for analyzing a complex problem. Hence, the validity of a model is limited and may not be valid universally. On the other hand, theories and laws are confirmed hypothesis which are universally valid. These are formulated after repeated testings. theories are more explanatory.

7 0
3 years ago
On a good night, the front row of the Twisted Sister concert would surely result in a 120 dB sound level. An IPod produces 100 d
cricket20 [7]

Answer:

100 iPods

Explanation:

The deciBell scale is logarithmic, and thus, it turns multiplying into adding.

Initially, it was the Bell scale, purely logarithmic, where "times 10" is translated into "plus 1" (just like normal logs). However, the steps became too big and so they divided the Bell in 10 parts, the deciBell.

The levels above could well have been called 10B and 12B.

Usually, we define the dB scale for intensity as:

I(dB) = 10•log(I)

Thus,

I = 10^(I(dB)/10)

Now 120 dB gives us units of I = 10^(120/10) = 10^12 Pa (assume the dB are measured to 1 Pa) and 100 dB is 10^10 Pa.

Thus, we would need 100 ipods to get the same intensity

8 0
3 years ago
I need help witha worksheet over circuitsin physics could someone help??
garik1379 [7]
Yes u can help I need to see th worksheet to help tho
5 0
3 years ago
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