URGENT PLEASE HELP 19. At the bowling alley, the ball-feeder mechanism must
exert a force to push the bowling balls up a 1.0-m long ramp.
The ramp leads the balls to a chute 0.5 m above the base of
the ramp. Approximately how much force must be exerted on
a 5.0-kg bowling ball?
A. 200 N
B. 50 N
C. 25 N
D. 5.0 N

Avalue that describes how heavy an object is and is related to the force of gravity is

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?