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A lamp which is 12.0 cm tall is 286.8 cm in front of a converging lens which has a focal length of 77.5 cm. What is the image distance for this lamp
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 5.0 m/s. What is the speed in the third segment
an object and lens positioned to form a well-focused, inverted image on a viewing screen. What happens to the image on the screen
A ball is thrown directly upward with an initial velocity of 10 m/s. how long is the ball in the air
A person whose mass is m = 97.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle ? = 25.3° with the horizontal
A typical lightbulb in your house is rated 137 W, which means that the lightbulb dissipates 137 W when connected to a DC voltage of 110V. what is the dissipated power
The Specific heat capacity at constant pressure of a gas varies with the temperature according to the expression: C_p = ( a + bT - c/T^(2) )
Two capacitors are connected to a battery. The battery voltage is V= 80V, Determine the total energy stored by the two capacitors
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. What is the volume flow rate through the pipe
A cube of mass m1 = 8.8 kg is sitting on top of another cube of the same size, What is the magnitude of the normal force with which the bottom cube is acting on the top cube
A wire has a diameter of 1.74 mm and a length of 37 m, What is the resistivity of the wire?
Two pure tones are sounded together. The periods of their pressure variations are 0.0151 s and 0.0159 s, What is the beat frequency
A transistor radio operates by means of a 12 V battery that supplies it with 56 mA current. what is the cost per kWh to operate the radio in this manner
You give a 2.35 kg book an initial shove at 2.50 m/s, Find the coefficient of friction between book and floor
A Ferris wheel with radius 14.0m is turning about a horizontal axis through its center. What is the magnitude of the passenger's acceleration as she passes through the lowest point in her circular mot
A car rounds a 200 m radius curve at 10.5 m/s. If the horizontal force acting on the car is 790 N, what's the car's mass
an astronaut on mars might lean over the edge of 25.0 meter tall spacecraft, How much time will it take for the package to strike the ground
A 57 kg tightrope walker stands in the middle of a rope. Her weight makes the rope sag, evaluate the rope tension
In atwood's machine two masses m1 and m2 hang vertically, connected over a frictionless pulley. Evaluate the acceleration numerically
Your 2.20 kg physics book rests on a horizontal tabletop. Find the normal force on the book. Suppose you pull up on the book with a 15.0 N force
If a toaster is plugged into a source of alternating voltage with an rms value of 66.2 V, find the resistance of the toaster's heating element
A constant force of 115 N directed upward is applied to a 4.0 kg toy rocket by the rocket's engine. What is the rocket's acceleration
A bat moving with a speed of 3.15{\rm m/s} and emitting sound of 39.0{\rm kHz}, What frequency is heard by the moth
if you plot a best-fit line for data on a graph of position vs. time, what units does the lines (vertical) intercept have
Calculate the electric field(magnitude and direction) at the center of a square 52.5 on a side if one corner is occupied by a - 38.8 charge