Which of the following is an idea that robert hutchings goddard introduced in his "further developments" to his research "a method of reaching extreme altitudes"?

a. lunar energy

b. nuclear energy

c. solar energy

d. wave energy

What is the current when a 71-W lamp is connected to 120 V?

Like magnetism, static electricity can attract and repel. True False

A lamp uses a 230 V mains supply and transfers 96 J of energy every second. Work out the current through the lamp. Give your answer to 1 decimal place.

Someone fires a 0.04 kg bullet at a block of wood that has a mass of 0.5 kg. The block of wood is sitting on a frictionless surface, so it moves freely when the bullet hits it. The wood block is initially at rest.

what is it called when an agging stars explode? A. iris B. singularity C. supernova D. pulsar E. event horizon

How many chromosomes will an elephant's sperm have?

Would the springs inside a bathroom scale be more compressed or less compressed if you weighed yourself in an elevator that was moving upward at constant velocity

tessa bought stock in a restaurant for $287.00 her stock is now worth $401.80 what is the percentage increase of the value of Tessa's stock?

Withholding Judgment on the mentally Ill is wise because It saves you from embarrassing yourself often people have disorders that don't affect you then you can try to understand what a person is experiencing all of the above

A 1200 W refrigerator, a 1500 W electric frying pan, and a 200 W lamp are plugged into the same outlet in a 15 A, 220 V circuit. (these devices are in parallel when plugged into the same socket.) What current (in A) is drawn by refrigerator?