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4 years ago

What three things are needed for a mechanical wave

Physics

1 answer:

dedylja [7]4 years ago

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Mechanical waves move energy through a medium by vibrating particles. Mechanical waves can't move energy through a vacuum because there is no matter inside of a vacuum. The three types of mechanical waves are transverse waves, surface waves, and longitudinal waves.

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A power plant uses 365 GJ/hr of energy from a boiler and extracts 18 GJ/hr as work from a turbine and rejects the remaining ener

ziro4ka [17]

Answer:

The rate of heat rejection will be 347 GJ/hr

Explanation:

We have given that power plant uses energy of 365 GJ/hr

So energy uses $Q_B=365GJ/hr$

Work done from turbine $W_T=18GJ/hr$

We have to find the rate of heat rejection to the atmosphere $Q_C$

We know that $Q_B=W_T+Q_C$

$365=18+Q_C$

$Q_C=347GJ/hr$

So the rate of heat rejection will be 347 GJ/hr

5 0

3 years ago

Paha777 [63]

Answer:

=140 cm²

Explanation:

____ ×20x 14

___ x base × height

is the formula have a gr8 day :)

5 0

3 years ago

diving to work one morning, you get a flat tire. when using the car jack, you apply 120 N of force to the jack and the jack in t

dybincka [34]

Mechanical advantage = (output force) / (input force)

MA = (2,000 N) / (120 N)

<em>MA = 16.67</em> (16 and 2/3)

6 0

3 years ago

Kara loves woodworking.She spent time carving a statue, sanding it smooth, and painting it. Which of the following physical prop

Free_Kalibri [48]

F)
size , texture , and color hope this helps

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3 years ago

n isolated charged soap bubble of radius R0=7.45 cmR0=7.45 cm is at a potential of V0=307.0 volts.V0=307.0 volts. If the bubble

Gnesinka [82]

Complete Question

An isolated charged soap bubble of radius R0 = 7.45 cm is at a potential of V0=307.0 volts. V0=307.0 volts. If the bubble shrinks to a radius that is 19.0%19.0% of the initial radius, by how much does its electrostatic potential energy ????U change? Assume that the charge on the bubble is spread evenly over the surface, and that the total charge on the bubble r

Answer:

The difference is $U_f -U_i = 16 *10^{-7} J$