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water with a mass of 0500 at 150 is mixed with 0800 of water at 350 what is the final temperature of the mixture
how much energy can be stored in a capacitor with two parallel plates each with an area of 640 cm2 and separated by a
a roller-coaster car may be represented by a block of mass 500kg the car is released from rest at a height h 570m
find the radius of the star rigel the bright blue star in the constellation orion that radiates energy at a rate of
a large window measures 18m by 32m at what rate will heat be conducted through the window when the room temperature is
a steel cylinder of radius 50cm and length 50cm is placed in end-to-end thermal contact with a copper cylinder of the
mechanical advantage is the ratio of the force required without the use of a machine sometimes very simple machine to
a 60 kg explorer lands on planet x where the gravitational acceleration is 105 ms2 the radius of the planet is 791 x
water drips from the nozzle of a shower onto the floor 235 cm below the drops fall at regular equal intervals of time
as your bus rounds a flat curve at constant speed a package with mass 0300 kg suspended from the luggage compartment
artificial gravity one way to create artificial gravity in a space station is to spin it if a cylindrical space station
communications satellites are used to bounce radio waves from the earths surface to send messages around the curvature
neutron stars such as the one at the center of the crab nebula have about the same mass as our sun but a much smaller
your spaceship lands on an unknown planet to determine the characteristics of this planet you drop a 120 kg wrench from
a container has a large cylindrical lower part with a long thin cylindrical neck the lower part of the container holds
a 100 kg sled is slid across a smooth ice field by a group of four dogs tied to the sled pulling with a 350 n force
a capacitor is connected across the terminals of an ac generator that has a frenquency of 460 hz and supplies a voltage
a system consists of two particles at 0 one particle is at the origin the other which has a mass of 050 is on the
what is the voltage of an alternator that produces a current of 0039 a if it contains a series rcl circuit with a
a series rcl circuit includes a resistance of 298 ohm an inductive reactance of 649 ohm and a capacitive reactance of
find the equivalent capacitance of a 4 uf 6uf and 8uf capacitor connected in parallel that has a 12 volt battery
a vacuum cleaner is connected to a 120v socket and uses 30 a when the back emf generated by the electric motor is 72
an open train car with a mass of 2130 kg coasts along a horizontal track at the speed 241 ms the car passes under a
a pipe 00178 m in diameter and 016 m long can transfer 3726 j of heat per second with a temperature difference across
a electron enters a magnetic field of 03 t at an angle of 45 degrees and with a speed of 5 e5 ms find the force on the