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A ball of clay of mass m travels with velocity v in a path tangent to a disk of Radius R and mass M. What is the final angular speed of the clay and disk
A spaceship is visiting Planet X. While descending to the surface,its rockets produce 25 kN of upward thrust and the spaceship%u2019s speed decreases at a rate of 0.15 m/s2. What is the mass of the
A proton and an alpha particle after being accelerated through same potential difference enter a uniform magnetic field the direction of which is perpendicular to their velocities
A person sees a heavy stone strike the concrete pavement. A, moment later two sounds are heard from the impact: How far away did the impact occur
If wind blows at 32 m/s over a house, what is the net force on the roof if its area is 238 m2 and is flat
A 20 cm radius air duct is used to replenish the air of a room 9.2 m multiplied by 5.5 m multiplied by 5.0 m every 10 min. How fast does air flow in the duct
A scuba diver and her gear displace a volume of 65.0 L and have a total mass of 64.0 kg. What is the buoyant force on the diver in sea water
A geologist finds that a Moon rock whose mass is 10.15 kg has an apparent mass of 5.68 kg when submerged in water. What is the density of the rock
An ideal gas has its pressure cut in half slowly, while being kept in a container with rigid walls. How much work was done during this process
An ideal gas expands isothermally, performing 4.36 multiplied by 103 J of work in the process. Calculate the change in internal energy of the gas
A storage tank at STP contains 19.5 kg of nitrogen (N2). What is the volume of the tank
Estimate the pressure exerted on a floor by the one pointed chair leg (50 kg on all four legs) of area = 0.08 cm2
A 200 gram ball, moving at 6.0 m/s, is catching up and colliding elastically witha 600 gram ball that is moving along the same line
mass if it is placed at the following locations. Consult the figure 12.9 in the textbook, and assume a constant density through each of the interior regions, estimate the average density for each re
A cannon with mass of 2000kg fires a 10kg shell at an angle of 60 degrees above the horizontal. what is the velocity of the cannon ball
When the decibel of traffic in the street goes from 40 to 60 dB, How much louder does the traffic noise seem
The water pressure in the pipes in the basement of a tall house is 5.1 105 Pa. Calculate the water pressure on the second floor
2000 kg elevator is accelerated uniformly from rest to 4 m/s in a time of 90s. find the change in mechanical energy of the elevator
Three electrons are aligned on a straight line and separations between them are 1.0mm. What is the electric potential energy of the center electron
Suppose 1.00kg of water at 100 degrees Celsius is mixed with 1.00kg of water at 0 degrees Celsius. What is the total charge in entropy of the mixture
A spring with spring constant of 29 N/m is stretched 0.21 m from its equilibrium position. How much work must be done to stretch it
A rocket is launched from rest with an acceleration of 30m/s^2 for the duration of one second when it runs out of fuel. What is the max height of the rocket
A 804 kg car is going 20 m/s and the driver has to slam on his brakes to prevent an accident. what is the change in temperature of the brake pads
venturi tube is a device made to measure pressure differences as the fluid (air density = 1.2kg/m^3) flows through a constriction. calculate difference in the level of mercury
a child does 350 J of work while pulling a box from the ground up to his tree house with a rope the tree house is 8.4 m above the ground