What is the name of the units that are normally used to measure energy?

Heat always flows from what objects to what objects?

A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on with a 6.0-kg object moving to the left at 2.0 m/s. Which statement is correct? A) The total momentum both before and after the collision is zero.

A 68 kgkg driver gets into an empty taptap to start the day's work. The springs compress 2.1*10-2 mm. What is the effective spring constant of the spring system in the taptap?

Are plant and animal cells exactly the same?

A chemical is one or two letter used to represent an element

How much power does a hair dryer require to transform 198000

An electric oven has a resistance of 201 ohms and a voltage of 220 V. How much current does it draw? a) 11 A b) 1.1 A c) 1,100 A d) 110 A

How are magnetic fields and electric fields similar

What was done to test if Comets are responsible for 1/2 the Earth's water?

Select the correct answer. Which healthy snack can provide protein after physical activity? A. an orange slice B. pretzels C. yogurt D. a sports drink