A stone is dropped from a height of 7.70 m how fast is it going when it is 5.25 m above the ground

A coal-burning power plant generates electrical power at a rate of 750 megawatts (MW), or 7.50 * 108 J/s. The plant has an overall efficiency of 35% for the conversion of heat to electricity.

In the bathroom of your house you would like to run a 300 W hot wax heater, a 30 W electric razor, a 1080 W curling iron, and four 120 W lights. Assuming your house is wired for 120 Volts, how much current will be pulled by these electrical devices

A certain car battery with a 12.0 V emf has an initial charge of 131 A · h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how many hours can it deliver energy at the rate of 130 W?

Sound transfers energy through solid liquid and gas what does ocean waves transfer energy through is it water or water and air as evaporation

Which statement describes how a covalent molecule would be formed?

The height of a cylinder is decreasing at a constant rate of 8 inches per minute, and the volume is decreasing at a rate of 161 cubic inches per minute.

Is the term used to describe an object with enough orbital energy to escape earth completely?

The formulas into H2O and CO2 are present molecules which are defined as

A car is going 7 m/s when it begins to accelerate. Sixty meters further down the road, the car is going 24 m/s. a) What was the acceleration of the car? b) How much time did the change from 7 m/s to 24 m/s take?

When you are in the front passenger seat of a car turning to the left, you may find yourself pressed against the right-side door. What concept (s) explain (s) why you press against the door and why the door presses on you? 1.