The line in which waves that are moving together are all in the same phase is referred to as the wave front.
For example, in a series of waves, all of the crests that are in a single line make up a single wave front. This is the case for every set of particles at the same specific point in a series of waves.
Answer: The force of reaction force of the ground accelerates the car on a level road.
Explanation:
When the wheels apply tractive force on the wheels by applying torque that is generated by engine of the car, the wheels in contact with the road tend to move backwards at the point of contact thus exerting a force in the direction opposite to the motion of the car. Now according to Newton's third law an equal and opposite forces act on the car which tend to accelerate the car in the direction of motion.
Answer:
B. Each joint has a different range of motion.
Explanation:
The range of motion for each joint needs to be measured separately as each joint has a different range of motion depending on the type and placement of the joint, for instance ball and socket joints have more movement than a hinge joint.
also, observe the joints that connect your head with your body and the joint that connect your arm with your palm. The joint that connect your head and your body allow a 360 degree movement which is why you can spin your head around while the joint that connect your palm and your arm only allow 180 degree movement.
When Sun's light passes through any type if matter, some rays get absorbed while others get reflected. This is how colors are made and how we perceive them.