A car travels at a rate of 25 km/hr for 1.5 hours, then is stopped behind a train for .50 hours, and finally at 21 km/hr for 1.25 hours.

In the image, the arrow is pointing to a celestial object. which attribute disqualifies the object from being a planet?

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2