While skiing in jackson, wyoming, your friend ben (of mass 84.2 kg) started his descent down the bunny run, 15.1 m above the bottom of the run. if he started at rest and converted all of his gravitational potential energy into kinetic energy, what is ben’s kinetic energy at the bottom of the bunny run? answer in units of j.

If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?

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