the object con tinues to fall but with NNO acceleration! notice that there is not net force if the upward and dowward forces are equal.
Answer:
Time = 12.06 seconds
Explanation:
Given the following data;
Power = 2.984 KW = 2984 Watts
Workdone = 3.60 × 10^4 J = 36000 J
To find the time;
Power = workdone/time
Time = workdone/power
Time = 36000/2984
Time = 12.06 seconds
Therefore, the engine would have to run for 12.06 seconds.
Answer:
a. reflection of all the light at a surface.
Explanation:
When light rays passing from the denser medium to the rarer medium and the angle of incidence is greater than the critical angle, the refraction of light does not take place and the incident ray is totally reflected back into the denser medium. This phenomenon is called total internal reflection.
There are two conditions that need to be fulfilled in order for the total internal reflection to take place:
1. The ray of light should be incident from denser to rarer medium.
2. The angle of incidence should be greater than the critical angle.
Therefore, the correct option will be:
<u>a. reflection of all the light at a surface.</u>
20 cm = bright
40 cm = dim
The longer the wire the bigger the resistance
