Answer:
Explanation:
Area of the loop = a b
current = I
magnetic moment of the loop M = area x current
= ab I
Torque on the loop = MB sinθ
here θ = 90
Torque = MB
= abIB
In this case net force on the loop will be zero because here torque is created by two equal and opposite force acting on two opposite sides of the loop so net force will be zero .
Answer:
394.26 m
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.8 m/s²
Total time taken by the stone to reach the ground is 4.49+4.49 = 8.97 seconds
The times are equal so,
The height is 394.26 m
Velocity = (distance covered in a direction) / (time to cover the distance)
Since the y-axis is position (distance), the speed at 3 seconds is the slope of the graph at 3 seconds, and NOT its y-value.
The slope is fairly easy to pick off, because the graph is so straight from 2 sec to 5 sec. During that time, the distance shrinks by 10 meters (from 10m to zero). So the slope of that whole piece of the graph is (-10m) / (3 sec).
That's a slope of (10/3 m/s) or 3.33 m/s .
In answer to the question, we can only give the speed at 3 sec, not the velocity, since we have no information about the direction of the motion. Consequently, I would call the speed a positive number. But it's not worth arguing about, so you should just select <em>choice-A </em>and not make a big scene.
Answer:
1.45 m/s
Explanation:
The spring exerts equal and opposite forces on the carts.
Therefore, the impulses on the carts are equal and opposite.
J₁ = -J₂
m₁Δv₁ = -m₂Δv₂
(3.00 kg) (0.82 m/s − 0 m/s) = -(1.70 kg) (v − 0 m/s)
v = -1.45 m/s
The magnitude of the second cart's velocity is 1.45 m/s.
The correct answer is c. Cirrus clouds.
