Why do telescopes give modern astronomers an advantage over people in the past

Thermal contraction definition

What is the result of changing the dielectric in a capacitor to a dielectric with a larger dielectric constant? A. The capacitor will have a lower charge at a given potential energy. B.

A charge of 6.65 mC is placed at each corner of a square 0.500 m on a side. Required: a. Determine the direction of the force on a charge. b. Determine the direction of the force on a charge. 1.

1. On which date does the Antarctic Circle have 24 hours of daylight? A. June 21 B. March 21 C. September 21 D. December 21 2. When energy is transferred to air, what happens to the particles of air? A. They move slower. B. They move faster. C.

How many seconds does it take to reach 18 m/s starting from rest if the train's mass, including its load, is 5.15 * 104 kg, assuming 95.0% efficiency and constant power?

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is pulled A. gravity pulls very hard on the milk carton. B. the milk carton has very little weight. C. the milk carton has inertia. D.

What is concave mirror

Two boxes are suspended from a rope over a pulley. each box has weight 50 n. what is the tension in the rope

What happens when you put a galvanized zinc nail in copper solution for an hour? Does is rust or turn different color? What is the outcome? What happens after an hour in vinegar?

Psuedopod in a sentence