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NASA launched a flying saucer to the top of the stratosphere. The plan was for the flying saucer to reach a height of 50 kilometer before entering the next phase of launch to the planet mars using rocket in space. The saucer initially accelerated from rest to a steady speed of 20000 miles per hour. If the parachute carrying the saucer reached a steady speed of 20000 miles per hour at a height of 0.5 kilometer from the surface of the earth, find what was the acceleration achieved by the saucer carried by the parachute. Find how much time did it take for the saucer to reach the edge of stratosphere at a height of 50 kilometer?
At time t= 0, a 2150-kg spacecraft in outer space fires an engine that exerts anincreasing force on it in the +x-direction. What impulse does the engine exert on the spacecraft during the 1.5 s interval starting 2.0 s afte..
a plastic bag is filled with helium at atmospheric pressure and 23.0 oc. assume that the mass of the bag is negligible
A frog in a hemispherical bowl finds that he just floats without sinking in a fluid whose density is 1.35 g/cm^3. If the bowl has a radius of 6cm and negligible mass, what is the mass of frog.
A 200 gram, 40-centimeter-diameter turn table rotates on frictionless bearings at 60 rpm, Find the turn table rotation angular velocity when the block reaches the outer edge
If a 350 kg object is moving with constant velocity 22 m/s due east, then what is the magnitude of the net force acting on the object
light rays in a material with index of refrection 1.25 can undergo total internal reflection when they strike the
the sun can be treated as a spherical blackbody with a radius rsun 6.96 x 108 m and a surface temperature of tsun
A 50 kg projectile is fired over level land at an angle of 30 degrees above the horizontal with a muzzle velocity of 210 m/s. How much energy was released during the explosion
What is the magnitude of apparent weight of a 83-kg astronaut 3200km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.8 m/s^2.
A hot air balloon rises from the ground with a velocity of 1.8 m/s.A champagne bottle is opened to celebrate takeoff, expelling thecork horizontally with a speed of 4.0 m/s. How long does the cork remain in the air
A 0.15-kg of aluminum contains 0.2 kg of water. Initially, the water and the cup have a com- mon temperature of 18 0C, find the specific heat capacity of the unknown material
ball A moving to the east collide with ball B and C with are at rest. after collision ball B went Northe with speed of 3 m/s and ball C went 30 digree south-east with speed of 5 m/s. Find kenetic energy generated during explosion
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