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An object with height of 5 cm is placed 30 cm away from a diverging lens with focal length f = - 20 cm. Find the location and height of the image. What it the lateral magnication? Is the image upright or inverted? Real or virtual? Use a ruler to draw an accurate diagram with three principal rays.
A 2.8{\rm kg} block of wood sits on a table. A 3.0 {\rm g} bullet, fired horizontally at a speed of 370{\rm m/s} , What is the speed of the block immediately after the bullet exits
Two charges, q1 = -80 nC and q2 = +50 nC are placed 3 m apart as shown. The (x,y) coordinates of the charges and two other points in meters are indicated. Find out the electric potential at points A and B
An electric fan is turned off, and its angular velocity decreases uniformly from 490rev/min to 210rev/min in a time interval of length 4.45s. Find the number of revolutions made by the fan blades during the time that they are slowing down in Part A
A cook puts 5.40 g of water in a 2.00-L pressure cooker that is then warmed to 460°C. What is the pressure inside the container? (Assume room temperature is 20°C.)
a tennis player receieves a srve with the ball travelling horizontally towards him at 50 m/s: what was the change in momentum of the ball
christian ramirez a small 0.12kg metal ball is tied to a very light sting 0.80m long to form a pendulum that is then
Which color light is the result of greater energy transition, red or blue, how much energy is needed to return an electron at ground level to the first quantum level? How can it be provided? Explain
A beam of electrons is incident on a crystal with in-plane atomic spacing D = 2.2 Å and out-of-plane spacing C = 1.55 Å, where C and D have the same meaning as on the handouts and class notes.
Two parallel wires are 5 m long. They are seperated by a perpendicular distance of 1 cm and carry currents of 20 A, Find the interaction force between the wires
An object (it could be the crown that Archimedes had studied) made of gold and copper has a mass of 5.00 kg. determine the the volume percentage of each metal
A motorist drives south at 28.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.20 min, find the total vector displacement
A large air conditioner has a resistance of 6.0 Ohm and an inductive reactance of 16 Ohm. Find the average power consumed by the air conditioner
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