Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
recent studies have raised concern about heading in youth soccer ie hitting the ball with the head a soccer player
a parallel-plate capacitor has plates separated by 072 mmif the electric field between the plates has a magnitude of
an electron traveling at 86 ms enters a 98 t magnetic field the angle between the velocity and the field is 49o find
many cheap electric stoves have three settings on their switch besides off labelled low med and high this is actually
a refracting telescope with a lens whose diameter is 330 cm is used to view a binary star system that emits light in
laser light with a wavelength of 540 nm is directed through one slit or two slits and allowed to fall on a screen 770 m
running into the train at that speed would severely damage both train and passengers calculate the minimum time
if a camera with a 60 mm lens is to resolve two objects that are 30 mm from each other and both objects are 40 m from
a car weighing 11times104 n and traveling at 1290 ms attempts to round an unbanked curve with a radius of 54 m what
a college professor can see objects clearly only if they are between 70 and 510 cm from her eyes her optometrist
a bullet of massm 15 g and velocity 260 ms is shot into a block of wood that is firmly attached to the ground the
a refrigerator shelf is an array of parallel wires with uniform spacing of 1050 cm between centers in air at 20degc
a hand grenade m580g slides across the essentially frictionless floor at a speed of 086 ms it misfires and breaks into
an electron moves in a circular path perpendicular to a magnetic field of magnitude 0260 t if the kinetic energy of the
a girl of mass m is taking a picnic lunch to her grandmother she ties a rope of length r to a tree branch over a creek
the electric motor of a model train accelerates the train from rest to 0680 ms in 340 ms the total mass of the train is
an airplane pulls a 25 kg banner on a cable as depicted in the figure below when the plane has a constant cruising
a sled is moving down an incline plane the mass of the sled is 40 kg the angle is 35 degrees coefficient of kinetic
a 21 multiplied by 103-kg car starts from rest at the top of a 45-m-long driveway that is inclined at 16deg with the
a daredevil on a motorcycle leaves the end of a ramp with a speed of 385 ms as in the figure below if his speed is 370
a copper wire has a square cross section 25 mm on a side the wire is 32 m long and carries a current of 46 a the
the mechanical advantage of a hydraulic jack is 450 find the weight of the heaviest automobile that can be lifted by an
a monkey is swinging on a vine the monkeys mass is 72kg and the tension in the vine when it is vertical is 820 n when
the small piston of a hydraulic press has an area of 800 cm2 if the applied force is 250 n find the area of the large
a 43 kg mass with an initial velocity of v1 acirci where a 294 ms collides with and sticks to a 305 kg mass with an