motion

An ά-particle, with mass of the proton and charge q=2e is shot with speed 8 x 10^6 m/s at an angle of 25º to an x-directed magnetic field B = 0.20 T. Describe all aspects of the motion fully.

DC circuits

Suppose that you have a 6.0-V battery and you wish to apply a voltage of only 4.0 V. Given an unlimited supply of 1.0 Ώ resistors, how could you connect them so as to make a "voltage divider" that produced a 4.0-V output for a 6.0-V input?

DC circuits

Two resistors when connected in series to a 110-V line use one fourth the power that is used when they are connected in parallel. If one resistor is 1.6 Ώ, what is the resistance of the other?

circuits

A potential difference of 750 V is applied across two capacitors of capacitance 5 µF and 10 µF in series. Find the charge on each capacitor and voltage across each.

capacitance

(a) Determine the equivalent capacitance between points a and b for the combination of capacitors shown (see attached). (b) Determine the charge on each capacitor and the voltage across each if Vab= V.

a hoop of radius 0.5m; inclined plane; speed

a hoop of radius 0.5m and a mass of 0.2kg is released from rest and allowed to roll down an inclined plane. How fast is it moving after dropping from a vertical distance of 3m? a. 5.4m/s b. 3.8m/s c.7.7m/s d.2.2m/s

moment of inertia; rotational kinetic energy; torque

a wheel with a moment of inertia of 8.0kg-m^2 and a rotational kinetic energy of 1.55 Joules requires what torque to bring it to rest in 4.0 seconds? a.-1.2N-m b.-1.0N-m c.-1.8N-m d.-1.6N-m

magnitude of the applied force

a force is applied to the end of a 2ft long uniform board weighing 50 lb, in order to keep it horizotal, while it pushes against a wall at the left. If the angle the force makes with the board is 30 degrees, the magnitude of the applied force F is a.28.9 b.50 lb c.100 lb c.57.7 lb

ratio of the large moment of inertia to that of the smaller moment of inertia

consider two uniform solid spheres where both have the same diameter, but one has twice the mass of the other. the ratio of the large moment of inertia to that of the smaller moment of inertia is a.10 b.4 c.6 d.2 e.8

a ball, solid cylinder and a hollow pipe - inclined plane

a ball, solid cylinder and a hollow pipe all have equal masses and radii. If the three are realesed simultaneously at the top of an inclined plane, which will reach the bottom first? a.the cylinder b.the pipe c.the ball d.none of the listed