A shell is fired from the ground with an initial speed of 1500m/s at an angle of 35 degrees to the horizontal. Neglecting air resistance, find a. the shell's horizontal range
b. the amount of time the shell is in motion

The image below shows numerous volcanic mountains in the pacific northwest. what is the most likely cause of the volcanic and earthquake activity in this region?

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?