In the latest indian jones film, indy is supposed to throw a grenade from his car, which is going 86.0 km/h , to his enemy's car, which is going 122 km/h . the enemy's car is 15.3 m in front of the indy's when he lets go of the grenade.
a) if indy throws the grenade so its initial velocity relative to him is at an angle of 45 ∘above the horizontal, what should the magnitude of the initial velocity be? the cars are both traveling in the same direction on a level road. you can ignore air resistance.
b) find the magnitude of the velocity relative to the earth.

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90