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an airplane flies eastward and always accelerates at a constant rate at one position along its path it has a velocity
a small coin initially at rest begins falling if the clock starts when the coin begins to fall what is the magnitude of
jack and jill exercise in a 250-m-long swimming pool jack swims nine lengths of the pool in 1539 seconds 2 minutes and
a geiger counter registers a count rate of 8000 counts per minute from a sample of a radioisotope fourteen minutes
two solenoids a and b are wound using equal lengths of the same kind of wire the length of the axis of each solenoid is
a circular loop of wire with a radius of 40 cm is in a uniform magnetic field of magnitude 0060 t the plane of the loop
three people pull simultaneously on a stubborn donkey jack pulls directly ahead of the donkey with a force of 939 n
a 13500-kg jet airplane is flying through some high winds at some point in time the airplane is pointing due north
a 50 gram ball is thrown at a wall and bounces off its speed just before impact is 24 ms and its speed just after
a cube of mass m1 32 kg is sitting on top of another cube of the same size and mass m2 96 kg while they are both in
shown to the right is a truncated cone of length l cm traveling through a fluid at a speed of 880 ms the narrow end of
a person whose mass is m 560 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle
an overnight rainstorm has caused a major roadblock three massive rocks of mass m1 584 kg m2 815 kg and m3 355 kg
suppose a 685 kg gymnast climbs a rope what is the tension in the rope if she climbs at a constant speednwhat is the
froghopper insects have a typical mass of around 129 mg and can jump to a height of 443 cm the takeoff velocity is
two forces are acting on a 0250-kg hockey puck as it slides along the ice the first force has a magnitude of 0365 n and
a proton moves at 702times107nbspms perpendicular to a magnetic fieldnbspthe field causes the proton to travel in a
find the current through a loop needed to create a maximum torque of 103 n sdot m the loop has 59 square turns that are
the force per meter between the two wires of a jumper cable being used to start a stalled car is 0222 nm what is the
a 66kg skater moving initially at 345ms on a rough horizontal ice comes to rest uniformly in 393s due to friction from
a person reaches a maximum height of 55cm when jumping straight up from a crouched positionduring the jump the persons
if the coefficient of kinetic friction between tires and dry pavement is 077 what is the shortest distance in which
what is the forward velocity of a 250 lb stone projectile that leaves a medieval catapult 55deg from the ground at 50
at the time of the tsunami of march 2011 japan generated approximately 30 of its electricity from nuclear reactors and
an electron initially at rest is placed in a region of space with a potential difference of 1250 v what is the