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A projectile is fired with an initial speed of 60.9 at an angle of 37.4 above the horizontal on a long flat firing range. Determine the maximum height reached by the projectile. Determine the total time in the air.
A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. What is the acceleration of the rising balloon
Moist air moves over land where the temperature is 68F and r = 0.7. Through contact with the ground the air cools. At what temperature will fog form? Consider constant latent heat of vaporization equal to 2.45 x 10^6 J/kg.
A box of weight Fg=2N accelerates down a rough plane that isinclined at an angle %u03C6=30 degrees above the horizontal, What is the work Wgrav done on the box by gravity
A rock is thrown off a bridge of height 75m. at an angle theta=25 degrees with respect to the horizontal. The initial speed of the rock is 15 m/s. compute the maximum height reached by the rock?
Consider an insulated enclosed volume of 27m^3 containing dry air at 23 degrees celsisus and 980mb, What is the specific volume and mass of the air sample
A spherical balloon has a radius of 7.35m and is filled with helium. Determine the largest mass of cargo the balloon can lift
A child suddenly runs into the street. If it takes the driver 0.80 s to react and apply the brakes, explain how many meters will the car have moved before it begins to slow down?
A 2.8 m long pendulum is released from rest when the support string is at an angle of 28° with the vertical. What is the speed of the bob at the bottom of the swing
A large cylindrical water tank of diameter od D=3.00 m. What is the flow speed of the water when it comes out from the hole
3 an observer in spaceship B obverses another spaceship A travelling with a velocity of 0.40 c relative to him. Both are moving in the +x-direction, how much time it takes the missile to reach you
a circus clown weighing 170 lbs. is fired from a cannon at 50 degrees above the horizontal. The clown lands in a circular net that has a radius of 15 ft. What was the initial velocity of the clown
a car initially running at 10 m/s applies brake and stops in 10 secs. What is the deceleration produced by the brakes
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