A lander or orbiter is a kind of artificial satellite

To get gravitational potential energy do you need to convert kg to g

You increase your walking speed from 1m/s to 3m/s in a period of 1 s. What is your acceleration

A pilot releases a package from a plane flying horizontally at a constant speed. When the package reaches the ground below, what is the horizontal location of the plane with respect to the package? Assume air resistance is negligible.

Which of the following waves are mechanical? A. Ocean waves B. Light waves C. Radio waves D. Microwaves

A high frequency wave has a short wavelength true or false

Anti-reflective coatings on lenses use thin-film interference to eliminate the reflection of a particular color. Suppose a glass lens (ng = 1.53) is covered with a thin film (nf = 1.31) to prevent green light (λ = 534 nm) from being reflected.

Which of the following is not expressions of impulse

A stone is dropped from the top of 50 m high tower simultaneously another stone is thrown upward with a speed of 20 m/s. calculate the time at which both the stones cross each other

What is the nature of force between two charges if q1+q2=0

If you shine a laser toward a friend in a spaceship who is moving away from you at half the speed of light, what does your friend see