Answer:
Explanation:
Given that
B(y, t) = k y ³t²
To find the total flux over the loop we have to integrate over the loop
Given that loop is square,so
B(y, t) = k y ³t²
We know that emf given as
So
Answer:
The speed is the same as long as the reflection is regular.
Explanation:
This is because in regular reflection, the angle of incidence is equal to the angle of reflection in accordance with the second law of reflection.
Since speed of light depends on the angle of the light ray it makes with the reflecting surface, the speed is the same
Answer:
because the bowling ball has a heavier mass, it will have more energy on the decent
Explanation:
Answer:
44.27 m/s
Explanation:
Let's set the upwards direction to be positive and the downwards direction to be negative.
Since we do not know the final velocity of the ball right before it hits the ground, we will use our knowledge that the final velocity of the ball is 0 m/s right before it changes direction to fall back to the ground.
- a = -9.8 m/s²
- Δy = 100 ft
- v = 0 m/s
- v₀ = ?
Find what constant acceleration equation contains all four variables.
Substitute the known variables into the equation and solve for v₀, the initial velocity.
- (0)² = v₀² + 2(-9.8)(100)
- 0 = v₀² - 1960
- 1960 = v₀²
- v₀ = 14√10 = 44.27188724
The initial velocity of the ball 44.27 m/s.
