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A proton, with a velocity of 3.45 x 10^5 m/s to the north, experiences both a magnetic force and electric force, working in the same direction. The net force causes the proton to accelerate at 2.86
A 541 g ball strikes a wall at 15.5 m/s and rebounds at 12.6 m/s. The ball is in contact with the wall for 0.032 s. What is the magnitude of the average force acting on the ball during the collision
A long thin rod of length L has a linear density of λ(x) = Ax where x is the distance from the left end of the rod. a) How far is the center of mass of the rod from the left end of the rod?
The 170-lb man climbs up the ladder and stops at the position shown after he senses that the ladder is on the verge of slipping.
A capacitor has a capacitance of 2.00 10-8 F. In the charging process, electrons are removed from one plate and placed on the other plate. When the potential difference between the plates is 500 V,
A 6090 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 253 m/s relative to the space probe. What is
A 10.0 cm-long solenoid of diameter 0.400 cm is wound uniformly with 800 turns. A second coil with 50.0 turns is wound around the solenoid at its center. a) What is the mutual inductance of the comb
A space vehicle is traveling at 4300 km/h relative to Earth when the exhausted rocket motor (mass 4m) is disengaged and sent backward with a speed of 82 km/h relative to the command module (mass m).
Several 0.25µF capacitors are available. The voltage across each is not to exceed 600V . You need to make a capacitor with capacitance 0.25µF to be connected across a potential differen
a) If the surface charge density for each plate has magnitude 47.0nC/m2, what is the magnitude of E? In the region between the plates? b) What is the potential difference between the two plates?
A charge q, of mass m, on a string of length L starts from rest at an angle of 60 degrees above the horizontal. An electric field of strength E in the horizontal direction is applied to the charge.
During this time interval, the magnitude and direction of the velocity of the particle undergo a negligivle change, but the particle move by a distance of .150 m in a direction perpendicular to the
A factory worker pushes a 31.7 crate a distance of 5.0 along a level floor at constant velocity by pushing downward at an angle of 30 below the horizontal. The coefficient of kinetic friction betwe
Now let us say that instead of a constant E-field on the -x direction, that another charge q lies ahead of our moving charge at a distance a from the origin along the x-axis. Assuming that this char
A friend has a scheme to run an engine that will deposit its heat into a block of ice. The engine has a power output of 8.5 kW and extracts heat from a source at 420 K and rejects heat to a 1000kg b
A city council member contacts you, concerning the environmental effects of discharging hot water into the river that flows by the plant. The flow rate of the river is 3.4 x 10^4 kg/s.
A car, of mass 2000 kg, is travelling up a hill at a constant speed of 90.0 km/h. The force of air resistance, which opposes this motion is 450 N. The slope of the hill is 6.0 degrees. (a) Draw a f
The radius of curvature of a convex mirror is 1.00 x 102 cm. An object that is 10.0 cm high is placed 25.0 cm in front of this mirror. Using a ray diagram drawn to scale, measure (a) the location an
A conductor is placed in an external electrostatic field. The external field is uniform before the conductor is placed within it. The conductor is completely isolated from any source of current or c
A block of weight w sits on a frictionless inclined plane, which makes an angle (theta) with respect to the horizontal, as shown. A force of magnitude F, applied parallel to the incline, pulls the b
Suppose the wire is cut and fashioned into a single circular current loop 10.0 cm in diameter carries a 2.00-A current. What is the magnetic field at the center of this loop?
What is the magnitude of the electric field in which the electric force it exerts on a proton is equal in magnitude to the proton's weight?
A hammer of mass is moving at speed M when it strikes a nail of negligible mass that is stuck in a wooden block. The hammer is observed to drive the nail a distance L deeper into the block.
What is , the work done on the block by the force of gravity as the block moves a distance up the incline?
What magnitude of force must the worker apply to move the crate at constant velocity?