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Orlov [11]
2 years ago
14

8. What are the two types of mechanical waves?

Physics
1 answer:
Juli2301 [7.4K]2 years ago
3 0
The answer would be “Transverse, Longitudinal”
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slader How much energy is required to move a 1040 kg object from the Earth's surface to an altitude four times the Earth's radiu
andrew-mc [135]

Answer:

ΔU = 5.21 × 10^(10) J

Explanation:

We are given;

Mass of object; m = 1040 kg

To solve this, we will use the formula for potential energy which is;

U = -GMm/r

But we are told we want to move the object from the Earth's surface to an altitude four times the Earth's radius.

Thus;

ΔU = -GMm((1/r_f) - (1/r_i))

Where;

M is mass of earth = 5.98 × 10^(24) kg

r_f is final radius

r_i is initial radius

G is gravitational constant = 6.67 × 10^(-11) N.m²/kg²

Since, it's moving to altitude four times the Earth's radius, it means that;

r_i = R_e

r_f = R_e + 4R_e = 5R_e

Where R_e is radius of earth = 6371 × 10³ m

Thus;

ΔU = -6.67 × 10^(-11) × 5.98 × 10^(24)

× 1040((1/(5 × 6371 × 10³)) - (1/(6371 × 10³))

ΔU = 5.21 × 10^(10) J

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Is the water the same temperature in alaska and mexico?
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Colder in Alaska, warmer in Mexico. 
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when forces on an object are acting in the same direction, how do you add them together to find the net force?
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Which of the following statements best describes the difference between momentum and inertia?
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Hope it helped.

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