Combined

Calculate the resultant force acting on the ball.

• 10 N to the left

• 10 N to the right

• 0 N

• 5 N to the right

Tags

NGSS.HS-PS2-1

Calculate the resultant force acting on the parachute.

• 19 N upwards

• 19 N downwards

• 5 N upwards

• 5 N downwards

Tags

NGSS.HS-PS2-1

Calculate the resultant force acting

on the parachute.

• 85 N upwards

• 85 N downwards

• 215 N upwards

• 215 N downwards

Tags

NGSS.HS-PS2-1

The diagram shows a box being pulled up the ramp. Which letter represents applied force?

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

The diagram shows a box being pulled up the ramp. Which letter represents the weight?

• A

• B

• c

• d

Tags

NGSS.HS-PS2-1

The diagram shows a box being pulled up the ramp. Which letter represents the frictional force?

• A

• B

• c

• d

Tags

NGSS.MS-PS2-2

If I initially have a gas at a pressure of 12.0 atm, a volume of 23.0 liters, and a temperature of 200. K, and then I raise the pressure to 14.0 atm and increase the temperature to 350. K, what is the new volume of the gas

• 12.8 liters

• 34.5 liters

• 51 liters

• 6.4 liters

• none are correct

A cylinder contains helium gas with a volume of 2.60 L at 20 C and 768 mm Hg. If the balloon ascends to an altitude where the helium pressure is 614 mm Hg, and the temperature drops to 10 C, what is the volume of the gas?

• 6.28 l

• 1.6 l

• 3.14 l

• 0.8 l

• none are correct

I have an unknown volume of gas held at a temperature of 200 K in a container with a pressure of 60.0 atm. If by increasing the temperature to 325 K and decreasing the pressure to 20.0 atm causes the volume of the gas to be 29 liters, how many liters of gas did I start with?

• 1.8 liters

• 67.2 liters

• 15.8 liters

• 5.9 liters

• none are correct

A sample of a certain gas has a volume of 452 mL at 711 mm Hg and 26.0 C. What would be the volume of this same sample of gas if it were measured at STP?

• 1.7 ml

• 2.4 ml

• 649 ml

• 386 ml

• none are correct