How much heat does it take to raise the temperature of 7.0 kg of water from

25-C to 46-C? The specific heat of water is 4.18 kJ / (kg.-C).

Use Q = mcTr-T)

A. 148 kJ

B. 176 kJ

C. 610 kJ

D. 320 kJ

The Law of Reflection. A student makes the following three claims about the law of reflection: 1. Whenever a light ray strikes a surface, it will always reflect away perpendicular to the surface. 2.

How high did a rocket travel if it stayed in the air for 10 seconds?

Explain how we use work and energy to complete everyday tasks.

An object that is in free fall seems to be

How does the Earth's Tilt affect the Earth

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

A force of 20 n acts upon a 5 kg block, calculate acceleration of the object