PHYSICS HIGH SCHOOL

Which of the following can occur by conduction?a. transfer of heat from the sun
b. transfer of heat through air
c. transfer of heat through space
d. transfer of heat through a liquid

Answers

Answer 1
Answer: d. transfer of heat through liquid

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Once the magnet moved closest to the loop in the forward direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was mA.Once the magnet moved closest to the loop in the reverse direction, under normal magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was mA.Once the magnet moved closest to the loop in the forward direction, under reversed magnet polarity, the approximate magnitude of the induced current shown on the galvanometer was mA.
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During which changes of state do atoms that cannot move past one another become free to move?

Answers

from solid to liquid. also known as melting
from solid to gas known as sublimation

Answer:

Sublimation and melting

Explanation:

3) A car company is looking to design an electric car. Which of these would not be a constraint that would limit possible designs?
A) Electric cars must be approximately the same size as other cars.
B) The company must ensure the cost of the car is not too expensive.
C) Electric cars are better for the environment than gas powered cars.
D) There are a limited number of types of batteries that can power a car.

Answers

A Correcting each car to the same size as the first one invented could get in the way during work days.

I honestly think the answer is actually C).

you measure that it takes 0.75 seconds for a leaf to fall from a tree to the ground. the leaf experiences air resistance as it falls. if there were no air resistance, how long would it take the leaf to fall?

Answers

There's not enough information given in the problem to calculate that answer.

A leaf falling from a tree on Earth, a sheet of printer paper falling off the back
of a truck on Venus, and a steel ball sinking through a bucket of Scotch whiskey
on Mars, might all reach the bottom in 0.75 second.  The time it would take each
of them to fall the same distance through a vacuum in the same place would be
different, and the 0.75 second is not enough to enable you derive it ... even if
you did know the acceleration of gravity in each place.  All you can say is that
without resistance, it would fall faster, and hit bottom in less than 0.75 second.

Answer:

less than 0.75 seconds

Explanation:

Can someone give me the answer for this? thanks. (The questions in the picture)

Answers

Answer: I would think it would be Ionic/synthesis

Explanation: Because the calcium gives up an electron to every chlorine atom resulting in Ca +.  

Scientific notation 47,000

Answers

47,000 written as 4.7 x 104 in s scientific notation

Yep that is right 4.7 times 104

DEFINE UNIFORM AND NON UNIFORM VELOCITY

Answers

Explanation:

Uniform velocity is when an object goes an equal amount of space in an equal amount of time whereas non uniform velocity is when the object covers an unequal amount of distance in an equal amount of time.
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The method of heat transfer by which the sun warms the earth isA) conduction B) convection C) radiation D) solaration