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IrinaVladis [17]
3 years ago
12

Calculate the p.e. of a 5 kg mass when it is (i) 3 m, (ii) 6 m, above the ground. (g = 10 N/kg)​

Physics
1 answer:
Mashcka [7]3 years ago
4 0

Explanation:

P.E=MGH

(1) P.E=5×10(G)×3

= 150 kg m^/s^ ( ^ =sqaure)

(2) P.E=5×10×6

= 300 kg m^/s^

Hope it helps, just remember the formula u can solve any question regarding gravition of earth (P.E=Mgh)

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What is the magnitude of a the vertical electric field that will balance the weight of a plastic sphere of mass 2. 1 g that has
sladkih [1.3K]

The magnitude of a vertical electric field that will balance the weight of a plastic sphere of mass 2. 1 g that has been charged to -3. 0 NC is 6.86 × 10^{6} N/C.

An electric field is the physical field that surrounds electrically charged particles and exerts a force on all other charged particles in the field, either attracting or repelling them. It also refers to the physical field of a system of charged particles.

It is given that,

Mass of sphere, m = 2.1 g =0.0021kg

Charge,q = ₋3nC = ₋ 3 ₓ 10^{-9}

To balance the weight of a plastic sphere, we must determine the magnitude of the electric field. So,

ma= qE

a = g

E = \frac{mg}{q}

E = \frac{0.0021 * 9.8}{-3 * 10^{-9} }

E = 6860000 N/C

E = 6.86 × 10^{6} N/C

Hence, the magnitude of the electric field that balances its weight is 6.86 × 10^{6} N/C .

To know more about  electric field refer to:  brainly.com/question/8971780

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5 0
1 year ago
The 38-mm-diameter shaft ab is made of a grade of steel for which the yield strength is 250 mpa. v y using the maximum-shearing-
Svetllana [295]

Answer:

Answer is 717 N . m

Refer below for the explanation.

Explanation:

As per the question,

38 mm diameter shaft,

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Refer to the picture for complete explanation.

6 0
2 years ago
If it takes 150 N of force to move a box. 10 meters, what is the work done on
Scrat [10]

Answer:

C ) 1500 Joules

Explanation:

In the attached image, we can see how the box was moved 10 meters by the force of 150 N.

The definition of work is W = F * d

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W= 150*10 = 1500 J

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15 POINTS!!! QUICK PLEASE
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Answer:

The net force is 15 newtons

The direction is to the right

Explanation:

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sveta [45]

Acceleration is the change of velocity, and velocity is the change of distance. The opposite of finding change, or differentiation, is integration.

Acceleration = 1.3 m/s²

Velocity: ∫ 1.3 dx = 1.3x + c m/s

Distance: ∫ 1.3x dx = 1.3x²/2 + c m

Distance run: 1.3*3²/2 = 5.85 m

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