A student made a model of an onion skin cell she viewed using a microscope. The scale is 1:500. The students cell model has a length of 15cm. How many centimeters is the real cells length?

When a bow an arrow is fired, how does the size of the force of the bow on the arrow compare of the arrow on the bow

In addition to water, what things are necessary for an aquifer to form? A. Acid and porous rocks B. Porous rocks and a cave C. Water table and an impermeable rock layer D. Porous rocks and an impermeable rock layer

It is 5.5 km from your home to the physics lab. As part of your physical fitness program, you could run that distance at 10 km/h (which uses up energy at the rate of 700 W), or you could walk it leisurely at 3.0 km/h (which uses energy at 290 W).

Write 45.670,000 with significant figure

The atomic number of krypton (kr) is 36, and its mass number is 84. how many neutrons does it have? 18 36 48 72

You recently won a bicycle race that was 100 km in distance. The race took you two hours to complete. What was your average speed?

A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom neutrally charged? Explain your answer.

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is pulled A. gravity pulls very hard on the milk carton. B. the milk carton has very little weight. C. the milk carton has inertia. D.

What is concave mirror

Two boxes are suspended from a rope over a pulley. each box has weight 50 n. what is the tension in the rope