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Gemiola [76]
3 years ago
6

A 98N weight is lifted to a height of 4m. What is its potential energy at this position?

Physics
1 answer:
dezoksy [38]3 years ago
4 0

Answer:

i need points

Explanation:

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A rat is pushed with a massive force. The mass of the rat is 2.3 kg and the acceleration of the rat is 9.5 m/s^2. What was the f
Phoenix [80]

Answer:

Force = 21.85N

Explanation:

Given the following data;

Mass = 2.3kg

Acceleration = 9.5m/s²

To find the force;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

F = ma

Where;

F represents force.

m represents the mass of an object.

a represents acceleration.

Substituting into the equation, we have

Force = 2.3 * 9.5

Force = 21.85N

Therefore, the force applied to the rat is 21.85 Newton.

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3 years ago
A book with mass 2.3 kg sits on a table. What is the normal force on the
natita [175]

Explanation:

The table is level and there are no other forces on the book, so the normal force is equal to the weight.

N = mg

N = (2.3 kg) (9.8 m/s²)

N = 22.5 N

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3 years ago
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Clara made a chart to summarize some of the evidence that supports the big bang theory.
cluponka [151]

Answer:

The temperature of the CMB is cooler, not hotter, than at the time of the big bang.

Explanation:

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3 years ago
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Afina-wow [57]

Answer:

For A

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Displacement= 1/2*4*4= 8m

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Evidence that the cosmic background radiation really is the remnant of a Big Bang comes from predicting characteristics of remna
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Answer:

B) The cosmic background radiation is expected to contain spectral lines of hydrogen and helium, and it does.

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