Answer:
Explanation:
PE = mgh = 60(9.8)(2.0) = 1176 J
Answer:
A wave is a vibration in mediun tbat carries energy from one place to another.
Explanation:
Explanation:
where is the question
I did not understood this question
Answer:
the angle of reflection equals the angle of incidence—θr = θi. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface.
Explanation:
A microscope uses a mirror to reflect light to the specimen under the microscope. ... An astronomical reflecting telescope uses a large parabolic mirror to gather dim light from distant stars. A plane mirror is used to reflect the image to the eyepiece.