<span>A convection current is caused by differences in temperature.</span>
Bulbs c and b would still be screwed in if they were in to begin with and bulbs A, D, and E. would be unscrewed
The answer is A. Since the car is moving at a constant velocity, the car not accelerate no matter how far it travels.
Answer:
The oscillation frequency of the spring is 1.66 Hz.
Explanation:
Let m is the mass of the object that is suspended vertically from a support. The potential energy stored in the spring is given by :

k is the spring constant
x is the distance to the lowest point form the initial position.
When the object reaches the highest point, the stored potential energy stored in the spring gets converted to the potential energy.

Equating these two energies,

.............(1)
The expression for the oscillation frequency is given by :

(from equation (1))

f = 1.66 Hz
So, the oscillation frequency of the spring is 1.66 Hz. Hence, this is the required solution.
Answer:
this happens because there is gravitational force acting upon it.