A100 n box is placed on an inclined plane that makes a 30° angle with the horizontal. calculate the component of gravitational force that acts down the inclined plane. a. 25 n b. 50 n c. 87 n d. 100 n

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)