Which unit do astronomers use for angular measurement?

A. parallax

B. arcsecond

C. parsec

D. light-year

Loamy soil is ideal for gardening because it contains Select one: a. mostly silt with very little clay or sand. b. mostly clay with very little silt or sand. c. mostly sand with very little clay or silt. d. roughly equal parts sand, clay, and silt.

Which type of wave can transmit energy through a vacuum?

A metal ball of mass 100 g is heated to 90°C and then cooled to 25°C. The heat lost in the process is 2.5 kJ. Another metal ball of mass 200 g is heated to 90°C and then cooled to 25°C. The heat lost in the process is 5.0 kJ.

Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-rupees coin and a one-rupee coin?

An underwater diver sees the sun 50° above horizontal. how high is the sun above the horizon to a fisherman in a boat above the diver?

Explain what happens to light when it is refracted at the surface of water.

A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the magnitude of the momentum change during the collision is correct? (There could be more than one correct choice.

Consider the following distribution of objects: a 3.00-kg object with its center of gravity at (0, 0) m, a 4.20-kg object at (0, 6.00) m, and a 1.40-kg object at (1.00, 0) m. Where should a fourth object of mass 7.

A Volt/Amp Is Also Known As.?

What's the difference between mass & weight & how they are measured