Answer:
E = –12V
Explanation:
Given
L= self inductance = 6.0H
di/dt = 2.0A/s
E = –L ×di/dt
= –6.0× 2.0
= –12V.
Answer:
relay switch
Explanation:
relay switch is the answer
Answer:
IT IS HOSPITAL OR AMBULANCE
SOME THING LIKE THAT IS WRITTEN ZOOM THAT PHOTO MORE
Answer:
Velocity of skater after throwing the snowball is 2.57 m/s
Explanation:
Given :
Mass of skater, M = 62.2 kg
Mass of snowball, m = 0.145 kg
Velocity of snowball relative to ground, v = 39.3 m/s
Consider v₁ be the velocity of skater after throwing the snowball.
According to the problem, initially the velocity of skater and snowball is same. So,
Velocity of skater before throwing snowball, u = 2.66 m/s
Applying conservation of momentum,
Momentum before throwing snowball = Momentum after throwing snowball
(M + m) u = Mv₁ + mv
![v_{1}=\frac{(M+m)u-mv}{M}](https://tex.z-dn.net/?f=v_%7B1%7D%3D%5Cfrac%7B%28M%2Bm%29u-mv%7D%7BM%7D)
Substitute the suitable values in the above equation.
![v_{1}=\frac{(62.2+0.145)2.66-0.145\times39.3}{62.2}](https://tex.z-dn.net/?f=v_%7B1%7D%3D%5Cfrac%7B%2862.2%2B0.145%292.66-0.145%5Ctimes39.3%7D%7B62.2%7D)
v₁ = 2.57 m/s