Winding the spring of a clock is what type of energy

A goldfish is capable of seeing which electromagnetic wave? A. X-rays B. Gamma rays C. Microwaves D. Both infrared and ultraviolet light

You replace a 100 W incandescent lightbulb with a 22 W CFL bulb. If you leave your lights on 24 hours a day, how much energy are you saving each day by replacing this bulb?

The radius of a potassium atom is 0.227 nanometer (nm). what is this radius in centimeters (cm) ? a. 2.27 Ã 10â8 cm b. 2.27 Ã 106 cm c. 2.27 Ã 10â10 cm d. 2.27 Ã 10â11 cm check answer

This diagram shows a baseball motion

What is the final velocity of the combined bumper cars A 225 kg red bumper car is moving at 3.0 m/s. It hits a stationary 180 kg blue bumper car. The red and blue bumper cars combine and hit a stationary green bumper car of mass 150 kg.

A ship leaves the island of Guam and sails a distance 255 km at an angle 49.0 o north of west. Part A: In which direction must it now head so that its resultant displacement will be 125 km directly east of Guam?

What is the molecular geometry of a methane (CH4) molecule?

Why do scientist use radioactive decay to figure out how old stuff is

The power of a machine measures A. its rate of doing work. B. its strength. C. the force it produces. D. the work it does.

the acceleration of gravity is 28 times on sun than earth. Imagine there is a space suit that let you stand on sun. Calculate the weight of 100 kg person on earth in newtons