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3 years ago

If you have a mass of 50 kg on Earth, what is your weight in Newtons?

2 answers:

5 0

Weight on any planet is (mass) x (acceleration of gravity there).

Acceleration of gravity on Earth is about 9.8 meters per second² .
So weight of 50 kg on Earth is (50 x 9.8) = 490 newtons.

(That's about 110.2 pounds.)

marusya05 [52]3 years ago

3 0

Your weight will be 50 x 10 = 500 N

Considering g = 10 m/s²

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if large amount of heat are transferred to a solid, what will probably happen to the state of the solid?

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The solid can melt down to a liquid like state, and if you keep applying heat, it would eventually become a gas state.

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3 years ago

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The result of changing a physical sound wave into an analogous electrical signal using a transducer (such as a microphone) is ca

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3 years ago

The Pilot of a plane measures an air velocity of 165Km/h south relative to the plane. An observer on

AVprozaik [17]

The speed obtained by the pilot is not accurate since it is measuring the rate of travel in the wind, true velocity is that compared to the ground. Therefore the speed of the wind is:

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4 years ago

What are the two factors that determine the amount of gravitational force between two objects?

melisa1 [442]

Answer:

The mass of the objects

Distance between the objects

Explanation:

The two factors that determines the amount of gravitational force between two objects is the mass of the objects and the distance between them.

Gravitational force of attraction is directly proportional to the product of the masses of the two objects and inversely proportional to the square of the distance between them. This is the postulate of the newton's law of universal gravitation.

Mathematically:

F = $\frac{Gm_{1}m_{2} }{r^{2} }$

m is the mass

r is the distance

G is the universal gravitation constant

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3 years ago

Two wires carrying equal currents exert a force ???????? on each other. (a) The current in each wire is doubled, while the dista

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a) The magnetic field created by a current-carrying wire is proportional to the current:

B ∝ I, B = magnetic field strength, I = current

The magnetic force acting on a current-carrying wire immersed in a magnetic field is proportional to the current and the magnetic field strength:

F ∝ IB, F = magnetic force, I = current, B = magnetic field strength

Let's focus on wire 1.

Since wire 2's current is doubled, wire 2 produces a magnetic field twice as strong as before.

Wire 1's current is also doubled, therefore we now have a wire having twice as strong a current immersed in twice as strong a magnetic field. The magnetic force on wire 1 (and you can make a similar argument for wire 2) will be four times as strong as before.

b) The general formula for the magnetic force acting on a current-carrying wire immersed in a magnetic field is given by:

F = IL×B

F = magnetic force vector

I = current

L = vector having a magnitude equal to wire length and representing direction of current

B = magnetic field vector

Note we are taking a cross product of the IL and B vectors, not the product of two scalar quantities.

The very nature of the cross product means that if L and B are parallel to each other, F = 0N

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3 years ago