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If the breakers at a beach are separated by 6.0 m and hit shore with a frequency of0.28 Hz, with what speed are theytraveling? m/s
the surface charge density on an infinite charged plane is - 2.50 x 10-6 cm2. a proton is shot straight away from the
2.50 moles of a monatomic ideal gas expand adiabatically from an initial temperature of 300K and an initial volume of 80.0 L to a final volume of 150.0 L
A car is hauling a 92 kg trailer, to which it is connected by a spring. The spring constant is 2250 N/m. The car accelerates with an acceleration of0.34 m/s2. By how much does the spring stretch?
A 126.6 {\rm N} carton is pulled up a frictionless baggage ramp inclined at 33.0^\circ above the horizontal by a rope exerting a 75.4 {\rm N} pull parallel to the ramp's surface. Calculate the work done on the carton by the rope
A machine part rotates at an angular speed of 0.60 rad/s; itsspeed is then increased to 2.2 rad/s at an angular acceletation of0.70 rad/s2
ConsideragainFig.1.12.Nowletthe14-kgweighthangfromthemid- dle of the lower arm (20 cm from the fulcrum). Calculate the biceps force and the reaction force at the joint
A flywheel for energy storage in a hybrid gasoline-electric car is a ring-shaped rotor of mass 49 kg, designed to rotate at 30000 rpm. What is the ring's diameter
The pilot of an aircraft wishes to fly due west in a 49.8 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 192 km/h.
two stationary positive point charges charge 1 of magnitude 3.45 nc and charge 2 of magnitude 2.00 nc are separated by
To estimate the muzzle speed of a blow dart, fire dart straight up into the air and time how long it takes to come back down. Roughly half of that time is the time for object to decelerate from its initial velocity to motionless. Estimation the in..
Suppose a mangetic field of 7.45 mT is pointing into a piece of paper and then we shoot a small charged metal ball, 4.8 grams and +1.52 uC, What is the magnitude and direction of the force on the particle
A very large plane of charge is oriented horizontally and has a constant charge distribution over the plane. A small insulating ball has charge +8.78 nC and mass 0.076 g. If the levitates 2.62 cm beneath the plane, and remains stationary, what is the..
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