Answer:
True
Explanation:
A coaxial cable is a type of cable that has an inner conductor surrounded by an insulating layer, surrounded by a conductive shielding.
Answer: 480 kJ
Explanation: Energy = power · time
E = Pt = 4000 W · 120 s = 480 000 J
Answer:
A. Kinetic energy is converted to electric potential energy, and the proton moves more slowly.
Explanation:
When a moving proton is brought close to a stationary one, the kinetic energy of the moving one is converted to electric potential and the proton moves more slowly.
Kinetic energy is the energy due to the motion of a body. A moving proton will possess this form of energy.
Two protons according to coulombs law will repel each other with an electrostatic force because they both have similar charges. This will increase their electric potential energy of both of them.
Potential energy is the energy at rest of a body. As it increases, the motion of a body will be slower and it will tend towards being stationary.
Control group in a scientific experiment is a group separated from the rest of the experiment, it is where the independent variable being tested cannot influence the results. It isolates the independent variable's effects on the experiment and can helps rule out alternative explanations of the experimental results.
Answer:
We will go in the same direction where the car was was moving before applying brakes
Our speed will be same as that of speed of the car before applying brakes i.e. 30 mph
This is due to law of inertia as we are initially moving with speed 30 mph so the due to inertia of motion of our body after applying brakes we move in the same direction.
Explanation:
As we know by Newton's first law that every object moves in its state of motion or state of rest until and unless some external force will act upon it.
Here we know that car is initially moving with speed 30 mph so our body has state of motion so it will have tendency to move in same direction.
Here when brakes are applied in the car then also our body will move with same speed in same direction due to inertia of motion.
So our body will strike with windshield with the speed of 30 mph.
