The second choice ... starts with the word "both" ... is the correct statement.
Hello!
Work is equal to the change in KE or the negative change in PE. So if e field is directed vertically upward or in positive y direction and our charge is positive it’s going to move in direction of e field so then the work done by the e field is negative because it is losing potential energy the farther it moves upward away from field. Work=qed which is charge*e field*distance travelled.
Hope this helps! Any questions please ask! Thank you!!
Answer:
B) both the amplitude of the motion and the weight of the ball
Explanation:
Time period of a pendulum is given by
![T=2\pi \sqrt{\dfrac{L}{g}}](https://tex.z-dn.net/?f=T%3D2%5Cpi%20%5Csqrt%7B%5Cdfrac%7BL%7D%7Bg%7D%7D)
where,
L = Length of pendulum
g = Acceleration due to gravity
The system here is similar to a simple pendulum
It can be seen that the time period depends on L and g.
Amplitude and weight are the factors that do not determine the time period.
Hence, the answer is B) both the amplitude of the motion and the weight of the ball
Answer:
Radiation can be absorbed by substances in its path. For example, alpha radiation travels only a few centimetres in air, beta radiation travels tens of centimetres in air, and gamma radiation travels very large distances. ... The thicker the substance, the more the radiation is absorbed
Answer:
7.89 7.91
Explanation:
The ranges of measurement lie between 7.92-0.05 and 7.92+0.05
7.87g and 7.97g