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An 1150-kg car pulls a 450-kg trailer. The car exerts a horizontal force of 3.8 x 103 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective friction coefficient of 0.15 for the trailer?
An airplane is traveling parallel to the ground in a region where the Earth%u2019s magnetic field is oriented perpendicular to the ground. What is the resulting voltage difference between the ends of each wing
One and one-half moles of an ideal monatomic gas expand adiabatically, performing 7910 J of work in the process. What is the change in temperature of the gas during this expansion
An electron and a proton each have a thermal kinetic energy of 3×kBT/2. Compute the de Broglie wavelength of each particle at the temperature of 2050 K. (kb is Boltzmann's constant, 1.38×10-23 J/K).
On earth, two parts of a space probe weigh 14000 N and 3500 N. These parts are separated by the center-to-center distance of 8m and may be treated as uniform spherical objects. Find out the magnitude of the gravitational force that each part exerts o..
The 210 A current through a spark plug moves 0.270 mC of charge. How long does the spark last
Compute the linear momentum and angular momentum of a Frisbee of mass 0.166 kg if it has a linear speed of 2.75 m/s and an angular velocity of 47.5 rad/s
A lead block is suspended from the underside of a 0.5 kg block of wood of density of 728 kg/m3. what is the mass of the lead block
The place you get your hair cut has two nearly parallel mirrors 7.00 apart. As you sit between these mirrors in the chair, your head is 2.50 from the mirror in front of you. How far away does the back of your head appear to be
Blocks A, B, and C are placed as in the diagram below and connected by ropes of negligible mass. What is the weight of block
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet
Find the magnitude of the electron acceleration. Under an influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt.
What current is in the primary circuit. A proton moves at a speed of 8.0 103 m/s as it passes through a magnetic field of 0.55 T. Find the radius of the circular path. Note down that the charge carried by the proton is equal to that of the electron..
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