Coyote goes to drop an anvil on the roadrunner. The anvil has a mass of 200 kg. He drops it from a height of 40 meters. The speed at the anvil at the top is 0 m/s. The speed at the anvil half way down is 19.8 m/s. (1) What is the potential energy of the anvil at the top AND at the halfway point? (2) What is the kinetic energy of the anvil at the top AND at the halfway point?

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)

The text compares alternating current with direct current. how are they different? a alternating current reverses direction in the electrical wiring. direct current flows in one direction only. b direct current reverses direction in the electrical wiring. alternating current flows in one direction only. c direct current is powered by solar energy. alternating current is powered by electrical energy. d alternating current does not move in the electrical wiring. direct current does move in the electrical wiring.

What system does a dentist chair system use? pneumatic or hydraulic system?