The answer to Willem's experiment are as follows;
A) The two other measurements Willem will require to calculate the specific heat capacity of copper are;
- The mass of the copper block
- The change in temperature of the copper block after heat is supplied.
B) The block must be well insulated to ensure no heat energy is lost to the surrounding by conduction, convection and radiation and hence, all heat supplied is used to effect a change in temperature in the copper block as intended.
C) If the block is poorly insulated, energy is lost and hence, the result would be too high because more energy would be consumed in the process.
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Answer:
Answer:
A. Increasing the number of lines per length.
Answer:
- 0.5 m/s
Explanation:
(1) Acceleration = change in velocity / time
(2) Change in velocity = (Final velocity - Initial velocity)
We know:
acceleration = 1.5 m/s/s
time = 5 seconds
final velocity = 7 m/s
x = initial velocity)
1.5 = ( 7 - x ) / 5
1.5 x 5 = ( 7 - x )
7.5 = 7 - x
x = -0.5 m/s
You can check the answer by plugging in the values to equation (1).
Astronomers believe the sun like other stars was formed within a nebula