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A plane traveling at a speed at 1300km/hr in a northerly direction at height of 5 km above the ground suddenly climbs at an anlge of 45 degrees to the horizon. Maintaining this speed and angle it releases a projectile as it passes through 7 km in altitude. How long does it take for the projectile to reach the earth? What is the maximum heigh about the ground achieve by the projectile? Please show work for both.
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 236 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
An object is in front of a converging lens with a focal length of 11.0 cm. The lens produces a real image located 25.0 cm from the lens. what is the image distance of the new lens
A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. What is the angular acceleration of the cylinder
An object is placed in front of a 75 mm lens. The image is real, and has a magnification of magnitude |m|=3. How far away is the object from the lens
Valerie is able to do 1200 joules of work in 10seconds. Brett is able to do 5000 joules of work in 50 seconds. Who is more powerful.
The antenna on a cordless phone radiates microwaves at a frequency of 2.0 GHz. What is the maximum length of the antenna
Original problem: a person walks at constant speedv1 along a straight line from A to B and then back alongthe line from B to A at constant speed v2. What is theaverage speed over the entire trip
A passenger with mass 85 {\rm kg} rides in a Ferris wheel. The seats travel in a circle of radius 35 {\rm m}. find the magnitude of the net force exerted on the passenger
In order to drop a Pyrex glass marble 1.003 in diameter through the hole in the plate, how much must the temperature of the system be raised
1.what morphologic characteristics of Hyacotherium suggest that it lived in thick, closed canopy forest 2. How did the increase in grasslands beginning in the miocene influence the morphology of horse teeth and jaw
Brain injuries in auto accidents. Brain injuries generally occur any time the brain's acceleration reaches 100 g for even a short time. Find the maximum speed with which the car can strike the barrier without causing brain injury, using an airbag
How much voltage is produced by an inductor of value 25 ?H if the time rate of change of the current is 58 mA/s
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