A moving sidewalk has a velocity of 1.7m/s north. if a man walks 1.1m/s, how long does it take him to travel 15m north in relation to a stationary observer?

a. 15.9s

b. 13.6s

c. 14.8s

d. 25.0s

Which statement is true? A) When two resistors are connected in series, there is less total current in the circuit than if the two resistors were connected in parallel.

What are some characteristics of warm and cold air?

In what scenario might a red ball appear black?

A toy helicopter begins flying across a field with a speed of 3 m/s and an acceleration of 0.8 m/s2. How long does it take the helicopter to reach a speed of 7 m/s?

Kendra separately pushes two boxes in a straight line at constant velocity over the same distance on level ground. Each box begins and ends at rest. Kendra exerts no force to stop either box; friction brings them both to rest.

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started

The elements with the largest atomic radii are found in the

Students will explain, distinguish the difference between the 4 states of matter