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pishuonlain [190]
2 years ago
6

Please help me with this I’ll mark your Brainly PLSSSS

Physics
2 answers:
Nadusha1986 [10]2 years ago
7 0

Answer:

A

Explanation:

Car A started at 15 Mph but took 20 seconds to get to 35 Mph. Car B only took 15 seconds to get to 35 Mph even though it started slower.

Firlakuza [10]2 years ago
6 0

Answer:

A

Explanation:

Car A had the best initial acceleration by more than 5 mph, while Car B reached the desired speed in 15 seconds, compared to 20 seconds.

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Calculate the average Power in kilowatts required to pull a car up a ramp in the amount of work is 250 KJ over a period of 45 se
kherson [118]

For this case we have that by definition, the average power is given by:

P = \frac {W} {t}

Where:

W: It is the work done

t: It's time

According to the data we have to:

W = 250 \ KJ = 250,000 \ J\\t = 45 \ s

So:

P = \frac {250,000} {45}\\P = 5555.55 \ watts = 5.56 \ kw

Answer:

5.56 \ kw

5 0
4 years ago
If the velocity of a runner changes from -2 m/s to -4 m/s over a period of time, the
Mnenie [13.5K]

Answer:

It will be A. So since its 2 times more the kinetic energy. But then you have to square it 2^2 = 4

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3 years ago
Use the scientific method to disprove the theory that “the Earth is the center of the universe.”
Pachacha [2.7K]

Why would we assume that Earth is the center of the the Universe in the first place?

Besides the fact the Earth contains life, it is no different from any other planet that we have ever seen, nor is the solar system in which it resides. There is no reason in the first place to assume its placement in the universe is different either.

7 0
4 years ago
Find the prime factorization of 168.​
stellarik [79]

Answer:

2 x 2 x 2 x 3 x 7 = 168

Explanation:

Prime factors of 168: 2, 3 and 7

These are the factors of 168:  1,2,3,4,6,7,8,12,14,21,24,28,42,56,84,168. Only 2, 3 and 7 are prime numbers meaning that they are only divisible by themselves and 1. Therefore they are the prime factors.

5 0
3 years ago
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valentinak56 [21]

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