Which is a unit rate

A) 47c for 2 pens

B) 20 gallons or 2 hours

C) 15 hours for 3 months

D) 18 miles driven in a week

Which law of motion accounts for the following statement? "A ball hit by a man travels faster than one hit by a boy."

When a capacitor, battery, and resistor are connected in series, does the resistor affect the maximum charge stored on the capacitor? Why or why not? What purpose does the resistor serve?

What happens to the temperature of a gas when it is compressed? a the temperature does not change. b the temperature increases. c the temperature becomes unpredictable. d the temperature decreases?

A car travelling at 45 mi/hr (20.1 m/s) comes to rest in 4 seconds. Find the acceleration of the car in m/s2.

Two stars have proper motions of one arcsecond per year. Star A is 20 light-years from Earth, and Star B is 10 light-years away from Earth. Which one has the faster velocity in space?

A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, while that of the vacuum cleaner is 5.7 A. Determine the power consumed by (a) the blow-dryer and (b) the vacuum cleaner.

4. A 40 kg child and a 30 kg child want to balance themselves on a 4 meter, 50 kilogramn see-saw. Where should the fulcrum be placed?

A 2-kg object is dropped from a height of 1000 m. What is the force of air resistance on the object when it reaches terminal velocity

What is the approximate increase in size from a 1 w to a 2w carbon resistor?

I am looking for this answer : Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, make observations, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.