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As preparation for this problem, review Conceptual Example 10. The drawing shows two planes each dropping an empty fuel tank. At the moment of release each plane has the same speed of 182 m/s, and each tank is at the same height of 2.83 km above the ground. Although the speeds are the same, the velocities are different at the instant of release, because one plane is flying at an angle of 15.0° above the horizontal and the other is flying at an angle of 15.0° below the horizontal. Find the (a) magnitude and (b) direction of the velocity with which the fuel tank hits the ground if it is from plane A. Find the (c) magnitude and (d) direction of the velocity with which the fuel tank hits the ground if it is from plane B. In each part, give the direction as a positive angle with respect to the horizontal.
A projectile is fired at time t=0.0s from point 0 at the edge of a cliff, with initial velocity components of Vox=80m/s and Voy= 300m/s. Find the height of the cliff
A simple pendulum has a mass of 0.150 kg and a length of 3.00 m. It is displaced by an angle of 12.0° and then released. What is the utmost speed?What is the maximum angular acceleration?What is the maximum restoring force.
The New River Gorge bridge in West Virginia is a 522 m long steel arch. How much will its length change between temperature extremes -19.4oC and 35.5oC
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. It vibrates with a fundamental frequency of 27.5 Hz. What is the total mass of the wire.
A 18.3-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 65.1-N horizontal force. compute the ropes angle from the vertical
Two children each of mass 20 kilogram ride on the perimeter of a small merry go round that is rotating at rate of 0.25 rev/s the merry go round is a solid disk of mass 30 kilogram and radius 3 meter. Find final rate of rotation
An airoplane takeoff speed is 320km/h. if its average acceleration is 2.9m/s^2, how long is it on runway after starting its takeoff roll.
A solid, horizontal cylinder of mass 10.0 kg and radius 1.30 m rotates with an angular speed of 8.00 rad/s about a fixed vertical axis through its center. Determine the final angular speed of the system
A rock of mass 42 kg accidentally breaks loose from the edge of a cliff and falls straight down. What is the magnitude of the acceleration of the rock
Determine the rotational inertia of the construction about an axis BC, which passes through two of the balls, in terms of m, where mis in kg.
A hydrogen atom has orbital angular momentum 9.38 x 10-34 Js. What is the atom's minimum possible energy
A laser pointer has a beam intensity of 36 W/m2 and a beam radius of 2.4 mm. A first grader attempts to use it to move a black toy car. what is the force on the car
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