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Ainat [17]
3 years ago
13

A pendulum is released from rest at point A. If the horizontal line represents the reference point, the pendulum has energy at p

oint B.
Physics
2 answers:
PSYCHO15rus [73]3 years ago
7 0

b i think

hope it helps ^^

Rzqust [24]3 years ago
6 0
Only kinetic

______________

Okay?


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An electric current will always follow
MrRa [10]

Answer:

A. The path of least resistance.

Explanation:

ur welcome again ;)

3 0
3 years ago
Nuclear energy is more harmful to the environment than a coal-fired power plant because it produces more mercury, air pollution,
krok68 [10]
A nuclear power plant doesn't produce any of those things. It only produces electricity and heat. As long as there are no accidents, and the worn out nuclear fuel is handled properly, the nuclear plant isn't harmful to the environment at all.
5 0
3 years ago
A 3.0-kg mass and a 5.0-kg mass hang vertically at the opposite ends of a rope that goes over an ideal pulley. If the masses are
irga5000 [103]

Answer:

The time taken will be 0.553 seconds.

Explanation:

We should start off by finding the force exerted by the rope on the 3kg weight in this case.

Weight of 5kg mass = 5 * 9.81 = 49.05 N

Weight of 3kg mass = 3 * 9.81 = 29.43 N

The force acting upward on the 3kg mass will equal the weight of the 5kg mass. Thus the resultant force acting on the 3kg mass is:

Total force = 49.05 - 29.43 = 19.62 N (upwards)

We can now find the acceleration:

F = m * a

19.62 = 3 * a

a = 6.54 m/s^2

We now use the following equation of motion to get the time taken to travel 1 meter:

s=u*t+\frac{1}{2} (a*t^2)

1=0*t+\frac{1}{2} (6.54*t^2)

t = 0.553 seconds

4 0
3 years ago
Is the facceleration due to gravity the same on Earth and Earth's moon?
Alchen [17]

Answer:

Earth's average surface gravity is about 9.8 meters per second per second. ... The Moon's surface gravity is weaker because it is far less massive than Earth. A body's surface gravity is proportional to its mass but inversely proportional to the square of its radius.

Explanation:

3 0
3 years ago
In the demolition of an old building, a 1,300 kg wrecking ball hits the building at 1.07 m/s2. Calculate the amount of force at
Arlecino [84]
F=ma
f?
m=1300kg
a=1.07m\s squared
f=1300kg x 1.07=1391N
8 0
3 years ago
Read 2 more answers
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