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rodikova [14]
3 years ago
12

Kinetic energy problemset

Physics
1 answer:
Sonja [21]3 years ago
8 0

Answer:

KE = 4 mv2 m = 2xKE valami. V m.

Explanation:

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A speeding car traveling at 24.8 m/s passes a police car that is at rest. The police car begins its pursuit at the instant the s
marusya05 [52]

Answer:

the acceleration required is 1.37m/s^2

Explanation:

The car is having a constant velocity movement, so if we calculate the time to reach 897m, we can use it to find the acceleration the policeman need to apply to reach the car.

x=v*t\\t=\frac{x}{v}\\t=\frac{897m}{24.8m/s}\\t=36.17s

the policeman is traveling with a constant acceleration starting from rest so:

x=\frac{1}{2}*a*t^2\\\\a=\frac{2*x}{t^2}\\\\a=1.37 m/s2

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3 years ago
A force of 3 newtons moves a 10 kilogram mass horizontally a distance of 3 meters. The mass does not slow down or speed up as it
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Answer:

9 joules of heat energy was produced

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Hi

The answer to this question is B. Reaction

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2 years ago
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Akimi4 [234]

Answer:

Selenium dichloride

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The SeCl2 compound formed is called Selenium dichloride as two atoms of Chlorine are needed to combine with one atom of Selenium to form the compound.

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