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miskamm [114]
3 years ago
14

A crate of 890 kg gets raised to a height of 2.1m. Calculate the crate's gravitational potential energy.​

Physics
2 answers:
Licemer1 [7]3 years ago
8 0
Gravitational potential energy = mass x height x gravity

So you would do 890 x 2.1 x gravity (which is 9.8 on earth)
mars1129 [50]3 years ago
4 0

Answer:

18,316.2

Explanation:

The formula for GPE is mgh, where

M = Mass of the object

G = Acceleration due to gravity (9.8 m/s^2 on Earth)

H = Height above ground

890 × 9.8 × 2.1 = 18,316.2

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Show that the energy of a magnetic dipole m in a magnetic field B is U--m B
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Answer:

showm

Explanation:

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5 0
3 years ago
A heater is being designed that uses a coil of 14-gauge nichrome wire to generate 300 W using a voltage of V = 110 V . How long
Mazyrski [523]

Answer:

The length of the wire is 83.2 m.

Explanation:

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Power of heater, P = 300 W

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P=\dfrac{V^2}{R}\\\\R=\dfrac{V^2}{P}\\\\R=\dfrac{(110)^2}{300}\\\\R=40.34\ \Omega

Area of cross section of the wire is :

A=\pi r^2\\\\A=\pi (0.000815)^2\\\\A=2.08\times 10^{-6}\ m^2

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3 years ago
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