A 2 cm high object is positioned 5 cm to the right of a converging lens (f= +3 cm). A diverging lens (f= -15 cm) is located 10 cm to the left of the converging lens. Determine its location and if the final image is inverted and virtual. Show ray tracing diagram to prove your answer.

Imagine you fill an insulated cup almost full with chopped or crushed ice, and measure the temperature after a minute or two, once it’s all come to thermal equilibrium. Since this ice is frozen water, the temperature should be at 0°C or not more than a couple of degrees below. Then, imagine you add a bunch of salt and stir it around.

What do you think the lowest temperature you can attain will be? Why? What happens to the amount of liquid present if you keep stirring and adding salt? How can we understand this phenomenon in terms of thermal and bond energy systems?

Develop an explanation for the changes you would observe in this physical system (decrease in temperature and change of phase) in terms of the Energy-Interaction Model. Preview the document

A photon with an initial wavelength of 1.070

Find the difference in the apparent acceleration of gravity at the equator and the poles, assuming the earth is spherical.

how do newton's three law of motion apply to an automobile? please include friction in your discussion.

A 55.4 ? resistor is connected in series with a 16.2 microF capacitor and a 60 Hz, 140 V source.

a) Find the current in the circuit. Answer in units of mA.

b) What is value of the inductor that must be inserted in the circuit to reduce the current to one half the previous current?

Answer in units of H.

5c.

Milly (mass 60.9 kg) runs at 4.11 m/s along the positive x-axis and then jumps onto a stationary 112 kg box. Milly and the box slide across the floor for distance 0.244 m, and then they come to a stop. Find the coefficient of kinetic friction between the box and the floor.

Why shift to digital television from analog? What are the shortcomings of analog TV and what are some of the advantages of digital? The specifications of digital television are set by the ATSC. Who are they and how do they specify the transmission? Please explain fully.

1. Please answer the following questions.

? What is the origin of electric resistance in material? Please give an argument to explain why capacitance depends on the geometry of the capacitor. (5%)

? Is Ampère’s law valid for the straight wire with finite length? Give an example to explain your answer using the Biot-Savart Law. (5%)

The energy we require to live comes from the chemically stored potential energy in food, which is transformed into other energy forms during the metabolism process. PHS 1120, Principles of Modern Physical Science 3 What consequence awaits a person whose combined work and heat output is less than the energy consumed? What happens when the person's work and heat output is greater than the energy consumed? Can an undernourished person perform extra work without extra food? Discuss and defend your answers. Please write a 5-paragraph essay connecting physical principles with biology. Include your responses to the questions above.

A motorcycle officer hidden at an intersection observes a car driven by an oblivious driver who ignores a stop sign and continues through the intersection at constant speed. The police officer takes off in pursuit 2.0 s after the car has passed the stop sign. She accelerates at 4.2 m/s^2 until her speed is 110 km/h, and then continues at this speed until she catches the car. At that instant,the car is 1.4km from the intersection. (a) How long did it take for the officer to catch up to the car? (b) How fast was the car traveling? (Ans:52 s, 98 km/h). Explain in detail how to solve.

A 1.0 kg ball and a 2.0 kg ball are connected by a 1.0-m-long rigid, massless rod. The rod is rotating cw about its center of mass at 19rpm .

What torque will bring the balls to a halt in 5.0s ?

Express your answer to two significant figures and include the appropriate units.

A weather balloon measures a temperature of 11°C and a mixing ratio of 12.5 g kg^-1 at 850 hPa. Twenty-four hours later, the passage of a dryline has left the same location with the same temperature but a mixing ratio of 6 g kg^-1. What is the change in the density of the air during this period? You may assume an ideal gas.

Texas rancher wants to fence off his four-sided plot of flat land. He measures the first three sides, shown as A, B, and C in the figure below, where

A = 4.15 km

and

?_C = 23°.

He then correctly calculates the length in kilometers and orientation in degrees west of south of the fourth side D. What is his result in kilometers and degrees west of south?

A= 4.15km corresponding degrees is 7.5

B= 2.48 and corresponding degrees is 16

C= 3.02 km and degrees is 23

a) What is the minimum index of refraction of a clear material if a minimum thickness of 122 nm , when laid on glass, is needed to reduce reflection to nearly zero when light of 675 nm is incident normally upon it? Assume that the film has an index less than that of the glass.

I got n_min=2.76 and it is saying incorrect.. used the equation 2t=m λ_n not sure what I am doing wrong

b) What is the main index of refraction of the material if the film has an idea greater than that of the glass?