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mylen [45]
2 years ago
10

1.What happens when ice cubes melt in a glass?

Physics
1 answer:
Lelechka [254]2 years ago
3 0

\qquad\qquad\huge\underline{{\sf Answer}}

The Correct choice is D

Heat always travel from higher temperature body to lower temperature. so we can infer that heat is transferred from the warmer water to the ice cubes which causes melting of that ice in there.

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Energy is transferred through a solid
Alex Ar [27]

Answer:

Conduction is the transfer of thermal energy through direct contact between particles of a substance, without moving the particles to a new location. Usually occurs in solids. When heat is supplied to one end, molecules at that end start to move more quickly.

Explanation:

5 0
3 years ago
An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force actin
umka2103 [35]

Answer:

F = 91.27 N

Explanation:

Parameters given:

Charge of alpha particle, q = +2.0e = 2.0 * 1.60217662 * 10^{-19} = 3.204 * 10^{-19} C

Charge of gold nucleus, Q = +79e = 79 * 1.60217662 * 10^{-19} = 1.266 * 10^{-17} C

Distance between the alpha particle and gold nucleus, r = 2.0 * 10^{-14} m

Electric force is given as:

F = \frac{kqQ}{r^2}

where k = Coulomb's constant

Therefore:

F = \frac{9 * 10^9 * 3.204 * 10^{-19} * 1.266 * 10^{-17}}{(2.0 * 10^{-14})^2} \\\\\\F = 91.27 N

The electric force acting on the alpha particle when the alpha particle is 2.0 * 10^{-14} m from the gold nucleus is 91.27 N.

7 0
3 years ago
The advantage of a synchronous orbit is that the satellite can: fly over the entire earth transmit over the entire earth receive
dsp73

Answer:

<u>receive continuous signals from a ground transmitter</u>

Explanation:

Remember a <u>synchronous orbit is synchronous in the sense that it has equal rotational period to the body orbiting having the same direction of rotation as that body</u>. An example of this is the Moon and the planet earth.

Thus it allows continuous signals to be sent from a ground transmitter and received by a space object.

3 0
3 years ago
Why are the meters squared in the formula to calculate acceleration?
lianna [129]

Answer:

During acceleration, you are moving across a distance over a time, but also increasing how fast we are doing it. Therefore, it means by how many meters per second the velocity changes every second

Explanation:

8 0
4 years ago
3. The driver of a blue car is moving at a speed of 35 mph. A red car passes him at a speed of
faust18 [17]
The blue car is moving with a velocity of -14 m/s using the red car as a reference frame.
8 0
3 years ago
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