A 5 kg book rests on a table. How much force is it exerting on the table?

(Hint: think about acceleration due to gravity.)

All waves carry a) energy B) light C) matter D) particles

There are two objects with initial charge. Object A has 3 positive and 3 negative charges. Object B has 5 positive and 3 negative charges.

Suppose the student's data show that the tomato plants that received the least sunlight produced the heaviest tomatoes. However, the plants that received the most sunlight produced tomatoes with the largest volume.

A train goes 120 miles in 2 hours. How far will the train travel over the course of 3 hours? A person walks 25 meters in 10 seconds. How fast is the person walking?

Technician A says that low pressure smoke installed in the fuel system can be used to check for leaks. Technicians B says that nitrogen under low pressure can be installed in the fuel system to check for leaks. Which technician is correct? A.

What's the symbol for an ionized bromine atom?

What is the hottest layer in the Sun's atmosphere?

Which do you need to calculate the speed of a wave? A. distance and frequency B. distance and time C. time and frequency

What is one of the benefits that scientists have discovered from organisms' daily exposure to radioisotopes? 1. being able to Carbon date fossils 2. X-ray Imaging capability 3. radiation treatment for cancer 4. invention of microwave cooking

Despite valid research, in the late 1900s, women and minorities were thought to have a higher level of intelligence than white males