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Consider an event by space-time coordinates t=2.0s x=2.5*10^8 m/s relative to frame S. Find the value γ that will be required to transform coordinates among frames S and S'. Use c=3*10^8 m/s for the speed of light in vacuum
A step-up transformer has 20 turns on the primary coil and 720 turns on the secondary coil. what input current and voltage are needed
A solid disk of mass m1 = 9.5 kg and radius R = 0.2 m is rotating with a constant angular velocity of ? = 31.0 rad/s. A thin rectangular rod with mass m2 = 3.4 kg and length L = 2R = 0.4 m begins at rest above the disk and is dropped on the disk w..
Nitrogen gas is heated by a pulsed laser to 50 000 K. If the diameter of the nitrogen atoms is assumed to be 1.0 ´ 10-10 m, what is the mean free path
Find the length of a side of a cube having a mass of 1.3 kg and the density of nuclear matter, taking this to be 2.3 ? 1017 kg/m3
The disk in a hard drive in a desktop computer rotates at 7200 rpm. The disk has a diameter of 5.1 in (13 cm). What is the acceleration of this point on the disk
a shower head has 20 circulaar openings, each with radiius 1.0 mm. what is its speed as it exits the shower head openings
A proton has a mass of 1.67 x 10^-27 kg and a charge of 1.60 x 10^-19 C. What is the gravitational force on a single proton at Earth's surface.
How far away can a human eye distinguish two car headlights 1.8 m apart? Consider only diffraction effects and assume an eye pupil diameter of 5.5 mm and a wavelength of 550 nm. What is the minimum angular separation an eye could resolve when view..
A child places a picnic basket on the outer rim of a merry-go-round that has a radius of 4.2 m and revolves once every 33 s. What is the speed of a point on that rim
a a 3 microcoulomb charge is at the coordinates 34 mm. a -4 microcoulomb charge is at the coordinates -25mm. what is
A dock worker applies a constant horizontal force of 76.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. What is the mass of the block of ice
The plates of a parallel-plate capacitor have a separation of 2.00mm , and each has an area of 14.2cm^2 . Each plate carries a charge of magnitude 5.70×10?8C . The plates are in vacuum.
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