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A 7500kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.25ms -2 and feels no apprciable air resistance. When it has reached a height of 525m, its engines suddenly fail so that the only force acting on it is now gravity.
a) what is the maximum height this rocket will reach above the launch pad?
b) How much time after engine failure will elapse before the rocket comes crashing down to the launch pad?
What happens to the size of the force on the proton if the electron is moved 0.50 m closer to the proton.
An object of mass 2 kg increases in speed from 2m/s to 4m/s in 3 sec. Calculate the total work performed on the object during this time interval
A satellite is in a circular orbit about the earth (ME = 5.98 × 1024 kg). The period of the satellite is 1.20 × 104 s. Illustrate what is the speed at which the satellite travels?
On your way to class you are walking North up the oval. From Dale Hall you walk 180 m towards Nielsen Hall when you meet a friend heading the other direction.
A criminal is escaping across a rooftop and runs off the roof horizontally at a speed of 5.6 m/s,hoping to land on the roof of an adjacent building. Air resistanceis negligible. The horizontal distance between the two buildings isD, and the roof of t..
A popular pastime is to see who can push an object closest to the edge of a table without its going off. You push the 100 g object and release it 1.00mm from the table edge. If the coefficient of kinetic friction is 0.500, what was the object's sp..
A 1 cm3 air bubble at a depth of 209 meters and at a temperature of 4 oC rises to the surface of the lake where the temperature is 18 oC, what is its new volume
A heavy stone of mass m is hung from the ceiling by a thin 8.25-g wire that is 65.0 cm long. When you gently pluck the upper end of the wire, What is the mass m of the stone
A 0.60 kg mass vibrates according to the equation where x is in meters and t is in seconds. find out (a) amplitude, (b) frequency, (c) total energy, and (d) kinetic energy and potential energies when x = 0.30 m.
Two metal spheres are separated by a distance of 0.8 cm and a power supply maintains a constant potential difference of 850 V, what is the distance between the spheres at this time in nm
Calculate the average density of a red giant star in grams per cubic centimeter. Take the star's mass to be 2*10^33 gm and its radius to be 3*10^12 cm
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
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