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devlian [24]
3 years ago
7

what is your weight in newtons if your potential energy is equal to 1000 joules and your mass is 60 kg

Physics
2 answers:
Darina [25.2K]3 years ago
6 0

Your potential energy and mass don't tell what your weight is.

If I walk up from the first floor to the second floor, my weight hasn't
changed even though my potential energy has increased.

Alona [7]3 years ago
3 0
Weight force is equal to mass times the acceleration of gravity. Since we're close on earth gravity is about 9.8 m/s^2. Multiply 9.8 by 60 and you will get 588 N. The potential emergy doesn't really matter here (unless you were on a different planet with different acceleration of gravity and given a height about the ground).
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erastova [34]

The choices are:

a. Normal Force

b. Gravity Force

c. Applied Force

d. Friction Force

e. Tension Force

​f. Air Resistance Force

Answer:

The answer is letter e, Tension Force.

Explanation:

Force refers to the "push" and "pull" of an object, provided that the object has mass. This results to acceleration or a change in velocity. There are many types of forces such as <em>Normal Force, Gravity Force, Applied Force, Friction Force, Tension Force and Air Resistance Force.</em>

The situation above is an example of a "tension force." This is considered the force that is being applied to an object by strings or ropes. This is a type force that allows the body to be pulled and not pushed, since ropes are not capable of it. In the situation above, the tension force of the rope is acting on the bag and this allows the bag to be pulled.

Thus, this explains the answer.

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Shkiper50 [21]
<span>Velocities are vectors so we can add them!

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3 years ago
A lamp is 10% efficient.How much electrical energy must be supplied to the lamp each second if it produces 20 J of light energy
k0ka [10]

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20 J/s = (0.1) x (Supply)

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Supply = (20 J/s) / (0.1)

<em>Supply = 200 J/s  </em>(200 watts)

========================

Here's something to think about:  What could you do to make the lamp more efficient ?  Answer:  Use it for a heater !

If you use it for a heater, then the HEAT is the 'useful' part, and the light is the part that you really don't care about.  Suddenly ... bada-boom ... the lamp is 90% efficient !

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What is beats means and its equation​
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