A heat engine with a thermal efficiency of 45 percent rejects 500 kj/kg of heat. how much heat does it receive

Suppose An Object In Free Fall Is Dropped From A Building. Its Starting Velocity Is 0 m/s. Ignoring The Effects Of Air Resistance, What Is The Speed (in m/s) Of The Object After Falling 3 Secs?

In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (Z). Drop Charge (Z) A) 1.77 * 10⁻¹⁴ B) 4.13 * 10⁻¹⁴ C) 4.72 * 10⁻¹⁴ D) 5.

How many moons does jupiter have?

A chemical bond results from the mutual attraction of the nuclei for

When Susan took the rice sock out of the microwave, it was nice and warm. She put it under her sister's neck. This worked great but Susan wanted a warmer sock. What should she do? A) Add a little water to the rice.

Define and describe a mixture using examples.

Which have a positive charge? neutrons atoms protons electrons

Now that we know the velocity of the cart before the collision is 1.80m/s, let's use this to determine the linear momentum and kinetic energy of the disk-cart system before the collision. The mass of the cart is 23.5kg. The mass of the disk is 11.

A circuit is built based on the circuit diagram shown. A diagram of a closed circuit with a power source on the left labeled 60 V. There are 3 resistors in parallel, separate paths, connected to it labeled 40 Ohms, 50 Ohms and 30 Ohms.

After harvesting their main crops, such as corn and wheat, many farmers plant a second crop called a cover crop. This cover crop grows during the fall and winter and is then plowed over in the spring. What is the main purpose of a cover crop? A.