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marshall27 [118]
3 years ago
15

In a magnet an (what?) is a pull between the north and south pole​

Physics
1 answer:
Nina [5.8K]3 years ago
3 0

A MAGNET IS A MATERIAL OR OBJECT THAT PRODUCES A MAGNETIC FIELD

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Four compasses are placed around a wire, as shown. What is the best conclusion that can be drawn?
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The best conclusion that can be drawn is that D) A current does not flow in the wire

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3 years ago
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It is weigh-in time for the local under 85 kg rugby team. The bathroom scale used to assess eligibilty can be described by Hooke
Varvara68 [4.7K]
<span>k = 1.7 x 10^5 kg/s^2 Player mass = 69 kg Hooke's law states F = kX where F = Force k = spring constant X = deflection So let's solve for k, the substitute the known values and calculate. Don't forget the local gravitational acceleration. F = kX F/X = k 115 kg* 9.8 m/s^2 / 0.65 cm = 115 kg* 9.8 m/s^2 / 0.0065 m = 1127 kg*m/s^2 / 0.0065 m = 173384.6154 kg/s^2 Rounding to 2 significant figures gives 1.7 x 10^5 kg/s^2 Since Hooke's law is a linear relationship, we could either use the calculated value of the spring constant along with the local gravitational acceleration, or we can simply take advantage of the ratio. The ratio will be both easier and more accurate. So X/0.39 cm = 115 kg/0.65 cm X = 44.85 kg/0.65 X = 69 kg The player masses 69 kg.</span>
4 0
4 years ago
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Use Kepler's third law to find the planet's average distance (semimajor axis) from its star. (Hint: Because the mass of the star
konstantin123 [22]

Answer:

Explanation: The planet average distance = 42300km

Kepler's 3rd Law also known as the Harmonic Law states that;

for each planet orbitting the sun, its side real period squared divided by the cube of the semi-major axis of the orbit is a constant.

A planet, mass m, orbits the sun, mass M, in a circle of radius r and a period t. The net force on the planet is a centripetal force, and is caused the force of gravity between the sun and the planet.

Please find the attached file for the solution

3 0
3 years ago
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sukhopar [10]

Answer:

doubled

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F=ma1----------(1)

2F = ma2-------(2)

Divide 2nd equation by 1st one

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2 years ago
Fronts are termed by the temperature of the air mass that overtakes another air mass. A. True B. False
Vikki [24]
A. True
if cold air is replacing warm air it is a cold front and vice versa.
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3 years ago
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