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a small 297 g plastic ball is suspended by a 202cm long string in a uniform electric field of 1460 nc the acceleration
robert mugabe is playing in the bath he notices that wave crests pass his plastic toy duck every 12sgt he measures the
a 16 kg disk with radius 063 m is rotating freely at 55 rads around an axis perpendicular to its center a second disk
which of the following would have the highest power rating1 100 joules of energy used in 05 seconds2 500 joules of
a uniform 6-m ladder weighs 200 n the ladder leans against a frictionless wall at an angle 650 to the floor discover
an insulated thermos contains1120 cm3 of hot coffee at a temperature of 800 degc you put in 110 g of ice cube at its
a wheel with a rotational inertia of 50 kg m2 is rotating in a horizontal plane at 600 revmin a rim brake exerts a
in this experiment the period of a pendulum was gauged when the pendulums length varied between 20 cm and 100 cm at
a physicist wraps a long copper wire around a toilet paper roll and places the roll in a uniform magnetic field the
a diver comes off a diving board with arms straight up and legs straight down giving her a moment of inertia about her
a cart with mass 380 g moving on a frictionless linear air track at an initial speed of 13 ms undergoes an elastic
biological muscle cells can be thought of as nanometres that utilize the chemical energy of atp to produce mechanical
a collision occurs between a 444 kg particle traveling with velocity 1 640 ms -118 ms and a 149 kg particle traveling
70 kg object undergoes an acceleration of 25 ms21 what is the magnitude of the resultant force acting on it2 if this
the best leaper in the animal kingdom is the puma which can jump to a height of 119 ft when leaving the ground at an
the block has a mass of 15 kg the top of the angle of the incline is 37 degrees the ramp is coated with a substance
a 12 v battery is connected to a plate separation of 500 mm and a parallel-plate capacitor with a plate area of 020 m2a
a rocket with an initial mass of 1000kg adjusts its thrust by varying the rate at which mass is ejected the ejection
a 30 kg mass sliding on a frictionless surface explodes into three 10 kg massesnbsp after the explosion the velocities
a neutron star has a mass of 220 x 1030 kg about the mass of our sun and a radius of 50 x 103 m about the height of a
a what is the escape speed on a spherical asteroid whose radius is 585 km and whose gravitational acceleration at the
a 004 kg bullet is moving horizontally with a velocity of 355 ms where the sign indicates that is moving to the right
1 decide the amount of work in joules that should be done on a100 kg payload to elevate it to a height of 997 km above
one mole of oxygen gas is at a pressure of 530 at m and a temperature of 310degca if the gas is heated at constant
a grandfather clock is controlled by a swinging brass pendulum that is 10 m long at a temperature of 22degcnbspa what