When two lenses are used in combination, the first one forms an image that then serves as the object for the second lens. The magnification of the combination is the ratio of the height of the final image to the height of the object. A 1.80 cm -tall object is 51.0 cm to the left of a converging lens of focal length 40.0 cm . A second converging lens, this one having a focal length of 60.0 cm , is located 300 cm to the right of the first lens along the same optic axis.

Part A

Find the location and height of the image (call it I1) formed by the lens with a focal length of 40.0 cm .

Enter your answer as two numbers separated with a comma.

Part B

I1 is now the object for the second lens. Find the location and height of the image produced by the second lens. This is the final image produced by the combination of lenses.

Enter your answer as two numbers separated with a comma.

A single-coil loop of radius r = 7.40 mm, shown below, is formed in the middle of an infinitely long, thin, insulated straight wire carrying the current i = 32.5 mA.  

What is the magnitude of the magnetic field at the center of the loop?

A cylinder contains 0.250 mol of carbon dioxide (CO2)gas at a temperature of 27.0?C. The cylinder is provided with a frictionless piston, which maintains a constant pressure of 1.00 atm on the gas. The gas is heated until its temperature increases to 127.0?C. Assume that the CO2 may be treated as an ideal gas.

a.) How much work W is done by the gas in this process?

b.) What is the change in internal energy ?U of the gas?

c.) How much heat Q was supplied to the gas?

Compare the measured values of tension to the calculated values of tension. What are the possible physical experiment uncertainties for the differences between the measured and calculated?

Measured= .075N

Caculated= .079N

Velocity v = .433m/s

Mass of Cylinder m = .1118kg

Radius of Pendulum r = .265

T=mv2/r

24. A 0.0500-kg ice cube at −30.0ºC is placed in 0.400 kg
of 35.0ºC water in a very well-insulated container. What is
the final temperature?

An Electron initially in the n=2 state of a hydrogen atom is excited by a photon to the n=5 state.

a. What is the energy of the excitatoin photon?

b. As the atom relaxes, the electron transitions to the ground state. What is the energy of the photon released during the electron transition?

c. What is the frequency of the released photon?

d. What is the name of the scientist who first modeled the atom as a miniature solar system?

A block of mass 5 kg is sitting on a frictionless surface. The block initially has a velocity of 3 m/s. A force of 9 N is applied for 2 s.  

What is the Initial momentum of the block?

kg m/s

What is the Initial Kinetic Energy of the block?

J

What is the change in momentum of the block?  

Kg m/s

What is the final momentum of the block?

kg m/s

What is the final velocity of the block?  

m/s

What is the final Kinetic Energy of the block?  

J

Your grandfather clock’s pendulum has a length of 0.9930 m. if the clock runs slow and loses 21 s per day, how should you adjust the length of the pendulum?

Pool players often pride themselves on their ability to impart a large speed to a pool ball. In the sport of billiards, event organizers often remove one of the rails on a pool table to allow players to measure the speed of their break shots (the opening shot of a game in which the player strikes a ball with his pool cue). With the rail removed, a ball can fly off the table. As the only participant with a physics background, they have placed you in charge of determining the speed of the players\' break shots.

The top of the pool table is 0.730 m from the floor. The placement of the tape is such that 0 m is aligned with the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph (about 14.3 m/s). If the winner\'s ball landed a distance 4.25 m from the table edge, calculate his break shot speed.

At what speed did his pool ball hit the ground?

How does spectroscopy work?

Two loudspeakers emit sound waves along the x-axis. A listener in front of both speakers hears a maximum sound intensity when speaker 2 is at the origin and speaker 1 is at x = 0.500m . If speaker 1 is slowly moved forward, the sound intensity decreases and then increases, reaching another maximum when speaker 1 is at x =0.850m .

A)What is the frequency of the sound? Assume vsound =340m/s.

B)What is the phase difference between the speakers?

A wire made from tungsten is 4.5 m long and 0.45 mm in diameter. What is its resistance at 1500°C?

Which constants are in Coulomb’s Law?

What does it mean that a quantity is a variable?

What does it mean that a quantity is a constant and how is a constant different from a variable?

What does Coulomb’s law say about the force between two charged particles? In terms of distance between particles?I n terms of the charges?