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An optical pin is placed midway between two parallel plane mirrors M1 and M2 which are 10cm apart. How far from the pin is the fourth image?
Assuming that the inductance has a value of 8 x 10^-7 H, determine the range of capacitance values that are needed so the antenna can pick up all the radio waves broadcasted by FM stations.
A laser emits a narrow beam of light. The radius of the beam is 1.5 mm, and the power is 2.9 mW. What is the intensity of the laser beam?
A candle is placed 15.74 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, the image moves 7.0 cm farther away from the mirror. Find the focal length of the con
It collides and couples with three other coupled railroad cars, each of the same mass as the single car and moving in the same direction with an initial speed of1.98m/s. What is the speed of the fou
A skier of mass 70kg is pulled up a slope by a motor driven cable. the work required to pul him 60m up a 30 degrees slope, assuming its frictionless, at a constant speed of 2.0m/s is 20.6J. What hor
A 30.0cm x 60.0cm rectangular circuit containing a 15.0olm resistor is perpendicular to a uniform magnetic field that starts out at 2.65T and steadily decreases at 0.220 T/s . While this field is ch
The electric motor of a model train accelerates the train from rest to 0.620m/s in 21.0milliseconds (ms). the total mass of the train is 875g. Find the average power delivered to the train during it
A current sensitive circuit in a portable DVD player consists of an DC power source and a lightbulb that is used as a indicator light.If we add an inductor to the circuit, would the lightbulb shineb
An emf is induced in a conducting loop of wire 1.10 m long as its shape is changed from square to circular. Find the average magnitude of the induced emf if the change in shape occurs in 4.10 s, and
A single conducting loop of wire has an area of 6.8 10-4 m2 and a resistance of 110 O. Perpendicular to the plane of the loop is a magnetic field of strength 0.18 T. At what rate (in T/s) must this f
A solenoid with a cross-sectional area of 1.85 10-3 m2 is 0.773 m long and has 440 turns per meter. Find the induced emf in this solenoid if the current in it is increased from 0 to 2.00 A in 44.9 m
A 1.4 kg object at x = 2.00m and y = 3.10 m moves at 4.52m/s at an angle 45 degrees north of east. Calculate the magnitude of the objects angular momentum about an origin.
A rotating flywheel can be used as a method to store energy. If it has 108105j of kinetic energy when rotating at 400 rad/s and if a frictional torque of 4.0 n m acts on the system, in what interval
A series RCL is at resonance and contains a variable resistor that is set to 175 ohms. The power delivered to the circuit is 2.6 W. Assuming that the voltage remains constant, how much power is deli
A 10 ohm resistor, a 12.0 microfarad capacitor, and a 17.0 mH inductor are connected in series with a 155 V generator. a) At what frequency is the current a maximum? b) What is the maximum value of
A vertical straight wire carrying an upward 28 -A current exerts an attractive force per unit length of 6.7*10^-4 N/m on a second parallel wire 6.0 cm away. What current (magnitude) flows in the sec
When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.18A. Find the capacitance of the second capacitor.
You wish to create an image that is 10 meters from an object. This image is to be inverted and half the height of the object. You wish to accomplish this using one spherical mirror. What is the foca
What % of the total original mass of the system does this mass change represent?
A point on the rim of a 0.60 m diameter grinding wheel changes speed uniformly from 10 m/s to 25 m/s in 9.5 s. What is the average angular acceleration of the wheel during this interval?
A baseball is thrown from the roof of a building of height 20.6 with an initial velocity of magnitude 14.0 and directed at an angle of 53.3 above the horizontal
A person moves a full sam's club shopping cart mass = 80.0 kg from rest to a velocity of 1.30 m/s over a distance of 1.80 meters to secure a spot in check out line. Determine the change in the chart
The tension is a constant 31.0 N and the coefficient of friction is 0.200. Use work and energy to find Paul's speed after being pulled 3.10 m.
A car is moving on a at horizontal circular track of radius 120 m. The speed of the car is constant, 15m/s . The mass of the car is 1200 kg. Ignore air resistance. (a) What force is keeping the car