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A foul ball is hit straight up into the air with a speed of about 25 m/s.
(a) How high does it go?
(b) How long is it in the air?
The primary coil of a transformer has 232 turns; the secondary coil has 1900 turns. An alternating current is sent through the primary coil. What is the emf amplitude in the secondary
The truck slows down uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making skid marks 62.40 m long that end at the tree. With what speed does truck then strike the tree.
A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 μC and each charge experiences an electrostatic force of magnitude 85.0 N when the separation between them is .270 m. Find q1 and q2.
Two identical positive charges exert a repulsive force of 6.2 x10-9 N when separated by a distance of 3.6 x10-10 m. compute the charge of each.
An experiment was performed where a quartz-iodine lamp was used to measure the photocurrent in microamperes in intervals of 10 nm from 400 nm to 900 nm for the voltage settings of 60, 80, 100, and 120V.
A skier approaches the base of an icy, frictionless hill with a speed of 10.7 . The hill slopes upward at 19.0 above the horizontal. Find the acceleration of this skier
A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 670 nm. Determine the angle that locates the first dark fringe
Using Newtons law of gravitational force Find the magnitude of the gravitational exerted by one mass on the other
At an instant in time, an electron has a velocity of 5i + 3j - 4k km/s in a region of space, Find the acceleration of the electron at this instant
The density of a 3.0-m long rod can be described by the linear density function ?(x) = 135 g/m + 13.6x g/m2. find the center-of-mass of the rod
A 710 kg car stopped at an intersection is rear-ended by a 1800 kgtruck moving with a speed of 16 m/s. If the car was in neutral andits brakes were off, so that the collision is estimated elasticfind the final speed of the truck. Find the final sp..
The electron emitted during \(\beta\) in tritium (a hydrogen atom with two neutrons) hasa kinetic energy of 5.7 KeV. What is the deBroglie wavelength for this electron? What is the deBroglie wavelength for this electron? Would you expect such an e..
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