At=v-u, where u=0
t= v/a=42/6 = 7
Answer: 7 seconds
Answer:
1. Resistance
2. Store chmical energy and transfer it to electrical energy when a circuit is connected
3.Electric current
4. Series and parallel
5. can't see diagram
6. series
7. Parallel
8. can't not see diagram
Explanation:
Answer:
The Earth would increase in volume.
Explanation:
Earth's crust is less dense than the mantle.
PLZ mark brainliest
Wave speed = frequency * wavelength
Input the numbers into this equation :
Wave speed = 200 * 3
Work it out and you will get the answer :
Wave speed = 600 m/s
Answer:
A. 2.41 s.
B. 24.3 m/s.
Explanation:
vf = vi + 2a*t
where, vf = final velocity
= 0 m/s
vi = final velocity
= 1.5 m/s
a = 9.8 m/s^2
A.
ti = 1.5/(9.8 * 2)
= 0.08 s
Vf^2 = Vi^2 + 2a*s
1.5^2 = 2 * 9.8 * s
S = 0.115 m
Time taken to drop into the water,
30.115 = 1.5*to + 4.9*to^2
to = 2.33 s
Total time taken = ti + to
= 2.33 + 0.08
= 2.41 s.
B.
Vo = 0 m/s
S = 30.115 m
Vf = ?
Using,
Vf^2 = Vo^2 + 2*a*s
= sqrt (2*9.8*30.115)
= 24.3 m/s.
