Which of the following is a scalar quantity?

A.

90 km/hr north

B.

20 m/s at an angle of 25

C.

30 pounds

D.

15 N down

What is the speed of the walking person in m/s if the person travels 1000 m in 20 minutes?

What unit do we use for pressure

The role of plants in the water, oxygen, nitrogen, and carbon cycles

Human activities that impact the water cycle include a. Use of toxic chemicals in agriculture and manufacturing run-off b. Pesticides that pollute surface water that seep into the ground c.

A 75 kg skateboarder is initially going 5 m/s to the right. He slows to a stop over 10 seconds. What is the direction and magnitude of the net force that causes this change?

January 1st 37°F January 7th 48°F January 14th 52°F January 18th 51°F January 21st 45°F January 25th 41°F January 31st 55°F When looking at a data set of numbers, the mean is the average. Look at the table above.

The vector quantity that defines the distance and direction between two positions.

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.