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An airplane with a speed of 74.9 m/s is climbing upward at an angle of 38.3 ° with respect to the horizontal. When the plane's altitude is 631 m, the pilot releases a package.
(a) Calculate the distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.
(b) Relative to the ground, determine the angle of the velocity vector of the package just before impact.
A 10-cm-diameter cylinder of helium gas is 20 cm long and at 20°C. The pressure gauge reads 120 psi. what is the mass of the helium
Zach, whose mass is 71kg , is in an elevator descending at 13m/s . The elevator takes 5.0s to brake to a stop at the first floor. What is Zach's apparent weight while the elevator is braking
Neglect air resistance, as well as any energy absorbed by the pole, and clarify her altitude as she crosses the bar.
The depth of the Pacific Ocean in the Mariana Trench is 36,198 ft. What is the gauge pressure at this depth
Two masses of 27 kg and 18 kg are suspended by a pulley that has a radius of 12 cm and a mass of 9 kg, Determine the speeds of the two masses as they pass each other
A small grinding wheel has a moment of inertia of 4.0×10?5 . What net torque must be applied to the wheel for its angular acceleration to be 150
A sprinter is just coming out of the starting block, and only one foot is touching the block. How large is the resultant of these forces
From far away, any charge distribution with a net charge behaves more or less like a point charge. Consider two thin disks, each of radius 2.5 cm. What is the electric force between the disks
A 52g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. How much nitrogen evaporates if it is at its boiling point of 77 K and has a latent heat of vaporization of 200 kJ/kg
q1. air is flowing through a rocket nozzle. inside the rocket the air has a density of 5.25kgm3 and a speed of 1.2 ms.
q1. a flight attendant pulls her 66 n flight bag a distance of 381 m along a level airport floor at a constant
q1. a cube of ice is taken from the freezer at -9.4degc and placed in a 94 g aluminium calorimeter filled with 315 g of
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