How much energy is needed to heat up 1kg of water by 15degrees?

In the 1800's, most buildings and bridges were massive structures made of what?

What is sin (77°) ? A. 4.33 B. 0.97 C. 0.22 D. 0.77

A softball is hit high into the air. As it rises, the softball

An office worker uses an immersion heater to warm 250 g of water in a light, covered, insulated cup from 20°C to 100°C in 4.00 minutes. The heater is a Nichrome resistance wire connected to a 120-V power supply.

Define velocity in terms of displacement

How does kinetic energy connect or relate to Newtons second law of motion?

In the United States, the electricity generated by hydropower is about a. twice that generated by solar and geothermal. b. equal to that generated using wind technologies. c. twice as much as that generated by wind, solar, and geothermal. d.

An ac generator consists of a coil with 40 turns of wire, each with an area of 0.06 m2. The coil rotates in a uniform magnetic field B = 0.4 T at a constant frequency of 55Hz. What is the maximum induced emf?

The diagram shows the directions of the earth's rotation and the moon's orbit around the earth. Which of these phenomena occurs on earth because of this?

Which layer of the atmosphere is made up of charged atoms?