A red car passes a blue car. Which is true?

A.

The blue car must be parked.

B.

The red car must be moving backwards.

C.

The blue car must be moving slowly.

D.

The red car is moving faster than the blue car.

A person sitting in a parked car hears an approaching ambulance siren at a frequency f1 and as it passes him and moves away he hears a frequency f2. The actual frequency f of the source is Group of answer choices

How often is water added to the Earth system?

Describe electrons. Location: Charge: Mass

One of the great dangers to mountain climbers is an avalanche, in which a large mass of snow and ice breaks loose and goes on an essentially frictionless "ride" down a mountainside on a cushion of compressed air. The acceleration of gravity is 9.

A student wants to make a very small particle accelerator using a 9 V battery. What speed will a proton have after being accelerated from rest through the 9 V potential difference?

Is physical science part of physics?

Which statement is true about the atomic mass?

Velocity is: а - speed and direction. b - distance divided by time. c - always the same as speed. distance multiplied by time. d - distance multiplied by time

The gauge pressure in each of the four tires of an automobile is 230 kpa. if each tire has a "footprint" of 180 cm2 (area touching the ground), determine the mass of the car.

A bus travels 20 KM and 30 minutes what is average speed of the bus