How much heat is needed to raise the temperature of 7g of Water by 20° C

How much does a 59 kg woman weigh on earth?

Whish is a drawback of solar energy? A. It is a non renewable source B. It depends on the climate C. It is difficult to use for electricity D. It can be a source of water pollution

Set kinetic energy equal to potential energy and solve for velocity

Jay collects eggs in a basket and weighs the basket. He graphed the relationship between the number of eggs and the total mass (in grams). Total mass (g) 1 7 2 3 4 5 6 Number of eggs What does the slope represent in this context?

The universe could be considered an isolated system because many people believe that no energy or matter exist outside the universe. energy and matter are created in the universe and flow freely into and out of the universe.

Bus A and Bus B leave school on a field trip when a stopwatch reads zero. Bus A travels at a constant 50 km/h, and Bus B travels at a constant 75 km/h. How far are the two buses from school when the stopwatch reads 1.5 h?. a ... Bus A is 76.

When observed from Earth, the wavelengths of light emitted by a star are shifted toward the red end of the electromagnetic spectrum. Why does this redshift occur?

Object A has a length of 3 cm, a width of 10 cm, and a height of 2 cm. Object B is dropped into a graduated cylinder. It displaces 60 mL of water. The volume of object A is:

Is the following sentence true or false? Some information about an object or process may be missing from a model.

If V is a velocity, l a length, and v a fluid property having dimensions of L2T-1, which of the following combinations are qualitatively dimensionless (show work for a through d) : (a) V l v (b) Vl/v (c) V2v (d) V / (l v)