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Water flows at a rate of 50 mL/s through an opening at the bottom of the of a tank in which the water is 4 m deep. At what rate will the water escape if additional pressure of 50 kPa is applied to the top of the water?
A car with a 65 cm diameter wheel travels 3.0 km. How many revolutions does the wheel make in this distance
A 100 Ohm resistor dissipates heat to its surroundings, isothermally. The resistor maintains a constant temperature of 300 K. What is the change in entropy of the resistor
How much work would he done by an electric field in moving alpha particle from a point at a potential of +180 V to a point at a potential of -60.0 V
As the wood flap rotates at 65.9rad/sec, it hits a switch and turns on a heater. The heater warms the bottom of a 2:0 m rod. how much has the rod grown
A tube with a 3.0-mm radius has ions flowing through it along its length. To determine the rate at which the charge is being moved through the tube, what is the magnitude of the current flowing through the tube
A 10 g projectile flies horizontally before becoming stuck in .890 kg block of wood. The wood is part of a ballistic pendulum and with the projectile swings upward .40m (and also sideways) What is the initial speed of the projectile?
A projectile is launched with a momentum of 200 kg*m/s and 1000 J of kinetic energy. What is the mass of the projectile
Two astronauts, each having a mass of 88.0 kg, are connected by a 10.0 m rope of negligible mass. What is the new rotational energy of the system
A radio receiver can detect signals with electric field amplitudes as small as 250?V/m. What is the intensity of the smallest detectable signal
An air traffic controller observes two aircraft on his radar screen. the first is at altitude 850m, horizontal distance 19.1 and 26.00 degree south of west. The second aircraft is at altitude 1000m, horizontal distance 17.8km and 25.0 degree south of..
radium is a radioactive element whose nucleus emits an alpha particle a helium nucleus that has a kinetic energy of
A light board, 10m long, has two supports, one at one edge of the board and a second at the mid point. What is the force exerted by the sawhorse at the end of the board
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