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GalinKa [24]
3 years ago
13

Which statements best describe energy? Check all that apply. The total amount of energy in the universe remains constant. The to

tal amount of energy in the universe changes constantly. Energy cannot be converted from one form to another. Energy can be converted from one form to another. Energy cannot be created or destroyed. Energy can be created or destroyed.
Physics
1 answer:
kirill [66]3 years ago
4 0

Answer:

It is actually the 1st, 4th, and 5th answer choices :)

Explanation:

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I have a 3 cc piece of aluminum with a density of steel with a mass of 24.0 g. I cut it into 2 equal pieces. How has the density
tresset_1 [31]

Answer:

What happens to the density of an object if the object is cut in half? ... The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is.

Explanation:

What happens to the density of an object if the object is cut in half? ... The density remains the same because cutting the object in half will divide the mass & volume by the same amount. Also, the density of a substance remains the same no matter what size it is.

3 0
3 years ago
Which of the following effects results from the interference of two sound
Natali5045456 [20]

Answer:beats

Explanation:l got it right gang

7 0
3 years ago
A crowbar having the length of 1.75m is used to balance a load between the fulcrum and the load is 0.5m calculate MA
aliina [53]

Answer:

1.70

Explanation:

substract 1.75-0.5

3 0
3 years ago
What is the difference between radial acceleration and tangential acceleration and how do you calculate both of these accelerati
sergey [27]

Answer:

Tangential acceleration is in the direction of velocity - along the circumference of a circle if the object is undergoing circular motion

a = (V2 - V1) / T

Radial acceleration is perpendicular to the direction of motion if the object is not moving in a straight line (perhaps along the circumference of a circle)

a = m V^2 / R = m ω^2 R   where R is the radius vector of the velocity - note that the Radius vector is directed from the center of motion to the object and for circular motion would be constant in magnitude but not  in direction

8 0
2 years ago
A teacher lifted a 10 N box and placed it down. Did she do any work? Explain your answer using math
Stells [14]

Answer:

i think it is 45 kilograms not really sure?

Explanation:it might be wrong but i think it is right

8 0
3 years ago
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