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the maximum speed of the pendulum bob in a grandfather clock is 045 msif the pendulum makes a maximum angle of 79 with
a ball spherical shell of mass m and radius r rolls without slipping up a ramp if the balls initial speed is v how high
the current in a simple series circuit is 540 a when an additional resistance of 860 ohms is inserted the current drops
a person takes in a breath of -2 degrees c air and holds it until it warms to 375 degrees c the air has an initial
a solid horizontal cylinder of mass 105 kg and radius 114 m rotates with an angular speed of 723 rads about a fixed
water is moving with a speed of 54 ms through a pipe with a cross-sectional area of 48 cm2 the water gradually descends
a cylindrical fishing reel has a moment of inertia of i 661e-4 kgm2 and a radius of 398 cm a friction clutch in the
a 050 kg physics book with dimensions of 25 cm 20 cm is on a tablea what force does the book apply to the tablenb what
a 16 kg rock m is on the edge of a 90 m cliff h as shown in figure 11-20 assume that air resistance is negligiblea what
a 185 103 kg car m has a speed vi of 105 ms the car then hits a tree the tree doesnt move and the car comes to rest as
a skier starts from rest at the top of a 48 m hill skis down a 32deg incline into a valley and continues up a 28 m high
the transmission of electric power occurs at the highest possible voltage to reduce losses if the voltage were raised
an asteroid has acquired a net negative charge of 128c from being bombarded by the solar wind over the years and is
a 30 g particle undergoes shm with an amplitude of 20 mm and a maximum acceleration of magnitude 80 multiplied by 103
a radioactive nuclide of atomic number z emits an alpha particle and the daughter nucleus then emits a beta particle
a crane lifts a steel sub dens 78 x 103 of mass 20000 kg what is the tension in the lifting cablea when the sub is
a man of mass 739 kg and density 970 kgm3 stands in a shallow pool with 335 of the volume of his body below water
five students are ice stating they hold hands while skating with a velocity of 10 sec and suddenly attempt to skate in
a solid 25 kg ball with a radius 30 cm sits at top of ramp which is at an angle of 30 degrees from the floor it rolls
74 l of an ideal monatomic gas is at an absolute pressure of 3 atm when the temperature is 25 ca how many moles of gas
you are boiling water in an alumunum pot the radius of the bottom of the pot is 10 cm and the aluminum is 3 mm thick
an unknown mass of tin is heated to a temperature of 222 c it is placed into 200 g of water which is in a 100 g copper
a flat sheet of crystalline quartz has a thickness of 21 cm it is on top of a flat sheet of diamond that has a
a thin layer of ice floats on the surface of water in a bucket a ray of light from the bottom of the bucket travels
a laser beam is incident at an angle of 360deg to the vertical onto a solution of corn syrup in watera if the beam is