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A relief airplane is delivering a food package to a group of people stranded on a very small island. The island is too small for the plane to land on, and the only way to deliver the package is by dropping it. The airplane flies horizontally with constant speed of 290 mph at an altitude of 750m . For all parts, assume that the "island" refers to the point at a distance from the point at which the package is released, D. Ignore the height of this point above sea level. Assume that the acceleration due to gravity is = 9.80m/s^2. t=2.4sec D=1600m v_0=290mph What is the speed of the package when it hits the ground in mph?
how long does the block remain in contact.
Two point charges of equal magnitude are 6.1 cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 37 N/C
A high-speed drill reaches 2000 rpm in 0.50 s. What is the drill's angular acceleration? Through how many revolutions does it turn during this first 0.50s.
An empty hollow metal shell containing vacuum has a total charge of 3C on its outer surface. What is the total charge on the outer surface once this has happened
At its highest temperature, a space heater has a resistance of 19.5 ohm, find the average power output of the space heater
You measure an electric field of 1.26×106 N/C at a distance of 0.149 m. from a point charge. find the magnitude of the charge
Wool is rubbed against a plastic ruler. If the plastic ruler acquires a charge of -5 µC, how many electrons have been transferred to the ruler
When it passes point A, its velocity is 3.5 m/s directed as shown. The distance AP is 0.6 m and BP is 1.0 m. Find out the speed of the mass at points B and C.
The Sun radiates energy at a rate of about 4×1026W. At what rate is the Sun's mass decreasing
A wire is 1.4 m long and 1.3 mm2 in cross-sectional area. It carries a current of 5.8 A, Calculate the conductivity of the material of which this wire is made
A train is traveling down a straight track at 29 m/s when the engineer applies the brakes, resulting in an acceleration of 1.0 m/s2 as long as the train is in motion. How far does the train move during a 58-s time interval starting at the instant ..
A 25.0 g object moving to the right at 17.0 cm/s overtakes and collides elasticity with a 7.0 g object moving in the same direction at 15.0 cm/s. find the velocity of each object after the collision
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