Based on resistance measurements, what is the expected turns ratio Np/Ns?

Based on measurements of Vp/Vs, what do you expect for turns ratio Np/Ns?

Explain the reason for the discrepancy.

If a transformer is ideal, what is the ratio for Is/Ip? Why are the experimental and theoretical values different?

Consider a problem involving tow rubber balls. The upper ball has half the mass of the lower ball. Both are dropped from the same height and so they arrive at thetable traveling downward at a given speed v0. Assume the lower ball bounces perfectly elastically off the table, and is now moving upward at v0, then bounces perfectlyelastically off the upper ball (which at that moment still moving downward at v0.) Find the final speed upward of the upper ball immediately after the collisions. (Hint will begreater then v0).

Side note: I tried this and got 3*v0. This is not the right answer.

Does the gyroscopic effect of bicycle wheels keep a bicycle stable? Or is stability the result of something else? Your solutions to this problem needs to address the following, at a minimum: https://www.youtube.com/watch?v=vWsuXNi_Vnw <----- Link to youtube. How did you determine the answer to the questions? What equations did you need? What values did you use for the variables? How did you determine those values?

3A. Draw a diagram of a heat engine and label (a) heat input, (b) heat output, and (c) work output.

B. Draw a diagram for the outcomes of flipping four coins and label them with the probability of obtaining each macrostate.

37.52•• Quarks and gluons are fundamental particles that will be discussed in Chapter 44. A proton, which is a bound state of two up quarks and a down quark, has a rest mass of m_p=1.67×10^−27 kg. This is significantly greater than the sum of the rest mass of the up quarks, which is m_u=4.12×10^−30 kg each, and the rest mass of the down quark, which is m_d=8.59×10^−30 kg. Suppose we (incorrectly) model the rest energy of the proton m_pc^2 as derived from the kinetic energy of the three quarks, and we split that energy equally among them. (a) Estimate the Lorentz factor γ=(1−v^2/c^2)^-1/2 for each of the up quarks using KE=(mc^2)/sqrt(1-v^2/c^2) - mc^2 = (γ-1)mc^2. (b) Similarly estimate the Lorentz factor γ for the down quark. (c) Are the corresponding speeds V_u and V_d greater than 99% of the speed of light? (d) More realistically, the quarks are held together by massless gluons, which mediate the strong nuclear interaction. Suppose we model the proton as the three quarks, each with a speed of 0.90c, with the remainder of the proton rest energy supplied by gluons. In this case, estimate the percentage of the proton rest energy associated with gluons. (e) Model a quark as oscillating with an average speed of 0.90c across the diameter of a proton, 1.7×10^−15 m. Estimate the frequency of that motion.

What equations can be obtained from a Magnetic field gradient vs Magnetic force on dipole graph? What does the slope represent? This is for the Magnetic force on a magnet experiment.

A proton (charge 1:6 x 10^-19 C) is stationary at the point (2:0 mm; 0; 0) of a chosen (x; y; z)- coordinate system. An electron (charge ?1:6 10?19 C) travels with a speed v = 100 m/s along the z-axis. What is the magnetic force on the proton due to the passing electron?

Force F1=950 N has an angle of 30° with positive x-axis and Force F2=550 N has an angle of -65° with positive x-axis. Find the values for F1x, F1y, F2x, F2y, Sum of Fx, Sum of Fy, and FR.

Efficiency for your bulb should have improved as the operating voltage increased. An even higher efficiency would have resulted if a still higher voltage were to be used to power the bulb. If melting of the filament were not an issue, discuss another limiting factor to improving efficiency by increasing voltage.

This is a concept of a lab called “Efficiency of an Incandescent Light Bulb” that I don’t understand. Please list a limitation to improving efficiency of a light bulb. I feel like I have given enough information in the question, so please do not give “not enough info” as the answer. Thanks!

It has been said that enough monkeys, pounding on enough keyboards for enough time, will eventually produce the complete works of William Shakespeare. Let’s examine this.

Suppose we have 10 billion galaxies, each containing 10 billion planets populated by 10 billion immortal monkeys with extreme insomnia. We provide each with a keyboard consisting of 26 keys (we won’t insist on capitalization, punctuation, or even spaces). The monkeys proceed to randomly strike 10 keys per second for the age of the universe (10^18 s).

To improve our odds, we’ll calculate the probability that one of our 1030 monkeys produces a text sequence that merely matches Hamlet: ~1.33 x 105 alphabetic characters.

(a) Show that the probability of any given sequence of 1.33 x 10^5 characters typed at random to match the characters of Hamlet is approximately (1/26)^133300 = 10^-188191

(b) Show that the probability of at least one monkey producing a copy of Hamlet in the age of the universe is approximately 10^-188142

The magnetic susceptibility of diamagnetic materials is nearly independent of temperature, but this is not so for paramagnetic materials, whose susceptibilities decrease with increasing temperature. Why do paramagnetic materials display this behavior,and why don’t diamagnetic materials do the same?

True/False

1. Mathematics is used in physics mainly to impress people.
2. Most of the world uses the US Customary System of units.
3. A rocket doesn’t need a surrounding medium to push against in order to move.
4. The kilogram is a unit of mass.
5. Acceleration is a vector.

Draw the normal and reflected rays knowing the
Law of Reflection (qi=qr) . Write the values of the angle of incidence and angle of reflection in the table above.

How do the angle of incidence and the angle of reflection compare for each trial?