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A certain quantity of steam has a temperature of 109.1 °C. To convert this steam into ice at 0.0 °C, energy in the form of heat must be removed from the steam. If this amount of energy were used to accelerate the ice from rest, what would be the linear speed of the ice? For comparison, bullet speeds of about 700 m/s are common. (Assume the specific heat capacity of water vapor is 2020 J/(kg · C°).)
Two objects attract each other gravitationally with a force of 2.5 x10-10 N while they are 0.33 m apart. Their total mass is 4-kg. Find out their individual masses.
A particle leaves the origin with an initial velocity=(3.76i)m/s and a constant acceleration =(-1.43i-2.69j) m/s^2. find velocity and position vector of particle
A steel ball is dropped onto a hard floor from a height of 1.55 m and rebounds to a height of 1.52 m. Calculate its acceleration during contact with the floor if that contact lasts 0.0800 ms
An elevator 700000 N is accelerating downward at the rate 4.55 ft/s^2. The maximum tension that the cable can handle is 125000 N. What is the shortest distance the elevator could travel?
A tennis player tosses a tennis ball straight up and catches it after 3.0 s. Find the initial velocity of the ball
Sam pushes a 10.0-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 4.0 N starting from rest. What is the speed of the sack after Sam has pushed it a distance of 20 cm
An airplane undergoes the following displacements
You are driving home from school steadily at 94 km/h for 150 km. It then begins to rain and you slow to 63 km/h. You arrive home after driving 3 hours and 30 minutes. How far your hometown from school and what is was your average speed.
Consider an LR circuit with a variable inductor and with deltaVs=150 V, f=60Hz, R=5 ohms. Calculate the power in the resistor
A baseball pitcher throws a fastball at a speed of 35m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 3.7 m. estimate the acceleration, assuming that it is constant ..
A 20.0kg light signal hangs from the end of a 7.0m uniform density pole of mass 12.0kg. The pole is free to swivel from the hinge at point A, What is the reaction force (magnitude and direction) at the hinge
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 3.4 kg and radius R = 0.26 m. What is the final angular speed of the fan
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