Nuclear Fusion and Nuclear Fission
Answer:
3 m/s east
Explanation:
The velocity of the car is given by:

where
d is the displacement
t is the time taken
The displacement of the car does not depend on the path of the car, but just on it the difference between its final position and its starting position, so it is equal to 15 metres east. The time taken is 5 seconds, therefore the velocity is equal to

and the direction is east.
Answer:
The charge stored is 
The energy stored is
Explanation:
From the question we are told that
The area of the plates is
The separation between the plate is 
The potential difference is 
The permitivity of free space is 
The dielectric constant of glass is K = 5.0
Generally the capacitance of this capacitor is

substituting values


The charge stored is mathematically evaluated as

substituting values


The energy stored is

substituting values


<h2><em>ight hull up...................................</em></h2>
Answer:

Explanation:
Kinetic energy is energy due to motion. The formula is half the product of mass and velocity squared.

The mass of the roller coaster car is 2000 kilograms and the car is moving 10 meters per second.
Substitute these values into the formula.

Solve the exponent.
- (10 m/s)²= 10 m/s * 10 m/s= 100 m²/s²

Multiply the first two numbers together.

Multiply again.

- 1 kilogram square meter per square second is equal to 1 Joule.
- Our answer of 100,000 kg*m²/s² is equal to 100,000 Joules.

The roller coaster car has <u>100,000 Joules</u> of kinetic energy.