A system having a mass of 1500 lb undergoes a process in which its elevation relative to Earth’s surface increases by 500 ft. If the local acceleration of gravity at its final state is g= 30.0 ft/s2, What is the weight of the systems at that state? Enter your answer in the empty textbox.

When you turn on a battery-operated device, an electrical circuit is

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.

What is the frequency if a wave that pases a given pount 22 times in 2 seconds