A car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 m
A. 2 minutes
B.
2 hours
C. 45 minutes
D. 45 hours
E
90 minutes
Reset
Next

Which notation is used to represent an alpha particle? a. b. c. d.

Which accurately compares concave and convex lenses?

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?