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Q. A 7.3 x10^3 kg space vehicle and its empty 6.8 x 10^2 kg booster unit are moving together through space at 370 m s. An explosion lasting 2.2s is used to separate the two parts. If the speed of space vehicle after the separation is increased to 430 m s, what impulse acted on the booster unit?
A 238 g particle is released from rest at point A inside a smooth hemispherical bowl of radius 32.5 cm.compute the gravitational potential energy at A relative to B.
The cord between the pouch and the person's hand has negligible mass and will break when the tension in the cord is 33.0 N or more. Assume the sling thrower could gradually increase the speed of the stone.
A 1040 kg car carrying four 80 kg people travels over a rough "washboard" dirt road with corrugations 2.0 m apart that causes the car to bounce on its spring suspension. The car bounces with maximum amplitude as its speed is 21 km/h. The car now stop..
A force vector has a magnitude of 590 newtons and points at an angle 44o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A 150g ball and a 250g ball are connected by a 34cm long, massless, rigid rod. The balls rotate about their center of mass at 130 . what is the speed of ball of 150 g.
A 240g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0.150 s. If the total energy of the system is 3J.
A piece of unpainted wood barely floats in a container partly filled with water. If container is sealed and then pressurized above atmospheric pressure, does the wood rise, sink, or remain at the similar level.
What mass (in grams) of steam at 100°C must be mixed with 251 g of ice at its melting point, in a thermally insulated container, to create liquid water at 66.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, an..
A sealed tank containing seawater to a height of 11.1 also contains air above the water at a gauge pressure of 2.95. Water flows out from the bottom through a small hole.
suppose that they have same internal energy, which will have a higher temperature: a metal knife in thermal equilibrim with a hot griddle or a 1kg block of ice at -25C or seven 12g ice cubes at -25C.
Use 9.81 for the magnitude of the acceleration due to gravity.
A pair of oppositely charged parallel plates are separated by a distance of 5 cm with a potential difference of 550 V between the plates. A proton is released from rest at the positive plate at the equal time that an electron is released from rest..
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