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my friend bob takes a leisurely stroll at a constant speed of 1.2 m/s for 8.5 mins to the south then jogs at a constant speed of 2.7m/s for 6.3 mins to the south
Find the power factor for an RC circuit connected to a 80.0Hz generator with an rms voltage of 155V
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +3q. Sphere B carries a charge of -q. compute the ratio of the final charge on sphere
The magnitude of the electrostatic force between two identical ions of mass 1.224×10-25 kg that are separated by a distance of 6.50 nm is 1.770×10-9 N. Calculate the electric field at th
The electrons in the beam of a television tube have a kinetic energy of 2.50 10-15 J. In what direction are the electrons deflected by this field component
At time t = 0, a ball is struck at ground level and sent over level ground. At what initial angle above the horizontal is the ball launched
A heat engine operates at an efficiency of 15%. what is the amount of heat it discharges to the cold reservoir
Three forces act on a body which moves with constant velocity. One force is 9 N acting at an angle of 70°, What is the angle of the third force
The accompanying pressure-volume graph shows an engine cycle with one isothermal process, B-C. What is the net work done by the gas during one cycle
if you decrease the hanging mass by a factor of four( 0.55 kg/4) but keep the linear mass density the same, by what factor does the fundamental frequency change
A 10.0microF capacitor and a 5.45mH inductor are connected in series with an open switch. What is the angular frequency of the charge oscillations
One solenoid is centered inside another. The outer one has a length of 47.0cm and contains 6600 coils, compute the emf induced in the inner solenoid
A very long, straight solenoid with a cross-sectional area of 6.15cm squared is wound with 50 turns of wire per centimeter, calculate the average induced emf in the secondary coil
a box of mass m1= 5 kg. rests on a smooth horizontal floor next to a box mass m2= 10 kg. what is the acceleration of the boxes
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 92.3 cm as its objective and a 14.3-cm focal length lens as its eyepiece
You want to examine the hairy details of your favorite pet caterpillar, using a lens of focal length 8.9 cm that you just happen to have around. what angular magnification do you achieve
Defend or refute the statements based upon your reading or any other outside sources you can quote. All statements must be backed up with citable references that are to be included in your discussio
A ball of mass M = 17 kg is suspended from a vertical inextensible string of length l = 1.5 m. A bullet of mass m = M/2 traveling with a horizontal velocity v = 9sqrt(g*L) collides with the ball, Wh
A disk of radius 10 cm, initially at rest, begins rotating about its axis with a constant angular acceleration of 8.2 rad/s2. compute the angular velocity of the disk
A firm wants to determine the amount of frictional torque in their current line of grindstones, find the frictional torque exerted on the grindstone
An astronomical telescope is designed with an overall magnification of 45x. The objective has a focal length of 84.0 cm. What should be the focal length of the eyepiece
A doubly charged helium atom whose mass is 6.6 10-27 kg is accelerated by a voltage of 2500 V. What is its period of revolution
A dentist uses a mirror to examine a tooth. The tooth is 1.01 cm in front of the mirror, and the image is formed 10.9 cm behind the mirror. Determine the mirror's radius of curvature
The force on a long wire is a maximum of 6.20 10-2 N when placed between the pole faces of a magnet. What type of magnetic pole is the top pole face
You have a 10.9 m straight wire carrying a 9.89 A current. What is the magnitude of the force on the wire when it is in a 0.83 T magnetic field perpendicular to the wire