The longer coffee sits on a desk, the cooler it becomes.

True or False? The length of time on the desk is a function of the temperature of the coffee.

A.

True

B.

False

A hydraulic lift consists of two pistons that connect to each other by an incompressible fluid. If one piston has an area of 0.15 m^2 and the other an area of 6.0 m^2, how large a mass can be raised by a force of 130 N exerted on the smaller piston?

Sarah is 14 years old and skips school twice a week without any written explanation. What can she be charged with?

A 1.0 kg ball is thrown into the air with an initial veocity of 30. m/s. how much kinetic energy does the ball have?

What happens to the temperature of the water inside the beaker after all of the ice melts? Why?

A motor has an armature resistance of 3.75 Ω. Part A If it draws 9.10 A when running at full speed and connected to a 120-V line, how large is the back emf?

In the movie "Santa Claus is Coming to Town", the Mayor Burgermeister Meisterburger outlaws toys after tripping on a rubber duck. To make rubber ducks un-crushable while being delivered by Santa, the ducks are filled with an inert, harmless gas. A 2.

Which of the following represents a chemical change? rocks being smoothed by rapid water movement the pink color of a rose iron's attraction to a magnet decomposition of stone due to acid rain

How many grams of CO2 are in 3 mol of the compound?

o keep yourself warm in the winter, you heat a solid metal ball and place it on a stand in the center of your room. The ball has a radius of 20.0 cm and an emissivity of 0.790.

How many brothers and sisters did beethoven have?