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kaheart [24]
3 years ago
7

Explain the role that heat plays in phase change. You will need to describe heat’s role in the phase change using terms such as

endothermic or exothermic and kinetic energy
Physics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

Answer:

it will change to exothermic and kinetic energy

Explanation:

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What is electrical energy ?
fredd [130]

Explanation:

Electrical energy is energy derived from electric potential energy or kinetic energy. When used loosely, electrical energy refers to energy that has been converted from electric potential energy.

HOPE THIS HELPS YOU

6 0
3 years ago
Read 2 more answers
At this radius, what is the magnitude of the net force that maintains circular motion exerted on the pilot by the seat belts, th
Ainat [17]

Answer:

Fc=5253 N

Explanation:

Answer:

Fc=5253 N

Explanation:

sequel to the question given, this question would have taken precedence:

"The 86.0 kg pilot does not want the centripetal acceleration to exceed 6.23 times free-fall acceleration. a) Find the minimum radius of the plane’s path. Answer in units of m."

so we derive centripetal acceleration first

ac (centripetal acceleration) = v^2/r

make r the subject of the equation

r= v^2/ac

 ac is 6.23*g which is 9.81

v is 101m/s

substituing the parameters into the equation, to get the radius

(101^2)/(6.23*9.81) = 167m

Now for part

( b) there are two forces namely, the centripetal and the weight of the pilot, but the seat is exerting the same force back due to newtons third law.

he net force that maintains circular motion exerted on the pilot by the seat belts, the friction against the seat, and so forth is the centripetal force.

Fc (Centripetal Force) = m*v^2/r  

So (86kg* 101^2)/(167) =

Fc=5253 N

4 0
4 years ago
If you are standing at Earth’s North Pole, which of the following will be directly overhead?
Sidana [21]

The north celestial pole (and also the south) are described as two imaginary points that project on the axis of rotation of the earth, indefinitely towards space and that intersects with the celestial sphere (Remember that the earth has a slight inclination with respect to to its axis of rotation). The north and south celestial poles are directly above the head of someone located at the north or south pole of the earth.

Correct Answer is A.

7 0
3 years ago
8.0kg rocket fired horizontally encounters a force of air resistance of 4.9 N. The force supplied by the rocket's engine is 60.9
Gelneren [198K]
60.9 - 4.9= 56
56 is the net force
using the formula F = ma
56= 8a
a = 7
acceleration is 7ms^-2
6 0
3 years ago
A object is 200 miles from the center of a circle and makes a circuit every 2 hours. How fast is it moving?
Tanya [424]

Answer: 628.31 miles/h

Explanation:

The equation to calculate the average speed s of an object moving in a circular path is:

s=\frac{2 \pi r}{T} (1)

Where:

r=200 miles is the radius of the circumference

T=\frac{1}{f} is the period, which has an inverse relation with the frequency f=\frac{1 circuit}{2 h}=0.5 h^{-1}. Then T=\frac{1}{0.5 h^{-1}}=2 h

Solving the equation:

s=\frac{2 \pi (200 miles)}{2 h} (2)

s=628.31 miles/h (3)

4 0
3 years ago
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