A 450-turn solenoid, 26 cm long, has a diameter of 2.1 cm . A 12-turn coil is wound tightly around the center of the solenoid.

If the current in the solenoid increases uniformly from 0 to 4.7 A in 0.57 s , what will be the induced emf in the short coil during this time?

a uniform 163 kg, 6m beam is held at rest by a vertical post s=2 m from its right end, and a vertical cable attached to its right end. A 92 kg man stands at the left end of the beam, d= 4m from the post.

a. create a complete FBD for the beam.

b. if we choose the piont where the post contacts the beam as axis for the purpose of calculating torques acting on the beam, which one of the forces in your FBD will generate no torque at all? Explain.

c. Identify the forces in your FBD that generate clockwise torques about this axis:

d. write a N2L expression relating the torques acting on the beam, only using symbols and assuming the beam is in quilibrium.

e. solve our N2L expression and calculate the tension in the cable.

Can electromagnetic waves be polarized so that the electric field vector is in the same direction as the direction of the propagation? Will rate based on correctness and explanation! Would appreciate any help!!

A 10 ohm resistor, 15 mH inductor, and a battery of emf 50.0 V are connected in series through a switch; S. (a) When is the current in the circuit zero? (b) When is the current in the circuit maximum? For both (a) & (b), is it immediately after the switch is closed or long time after the switch is closed? (c) What is the maximum current? (d) What is the time constant of the circuit?

For College Physics. Please type response as it is sometimes difficult to read when a picture is uploaded. Thank you!

Answer the following:

Describe angular velocity and angular acceleration. In your own words, explain the relationship between linear and angular quantities. In your own words, explain rotational kinetic energy and moment of Inertia.

True or false for each statement :

1)Without friction or work by an external force, the sum of the potential and kinetic energies of a body is constant.

2)Work is done when the form of energy changes.

3)Work can be done in the absence of motion.

4)Less power is required while slowly lifting a box than while lifting it up quickly.

5)Energy conservation law for a projectile (no friction): Potential energy decrease equals the kinetic energy increase.

6)A source of energy is required to do work.

A dentist's drill starts from rest. After 3.40 s of constant angular acceleration it turns at a rate of 2.00 ✕ 104 rev/min.

(a) Find the drill's angular acceleration. rad/s2

(b) Determine the angle (in radians) through which the drill rotates during this period. rad

Design a combination of identical capacitors, each with capacitance C, for which the equivalent capacitance is 3C/4. (Select all that apply.) 1.Make 4C capacitors by combining four capacitors in series; then combine three of these in parallel. 2.Connect three capacitors in parallel to obtain an equivalent capacitance of 3C; then connect four of these new capacitors in series. 3. Make C/4 capacitors by combining four capacitors in series; then combine three of these in parallel. 4. Connect four capacitors in parallel to obtain an equivalent capacitance of 4C; then connect four of these new capacitors in series. 5.Connect three capacitors in series to obtain an equivalent capacitance of 3C; then connect four of these new capacitors in parallel. 6. Make C/4 capacitors by combining four capacitors in parallel; then combine three of these in series. Select which numbers of 1-6 would work for an equivalent capacitance of 3C/4

A ball is projected at an angle of 60 degrees above horizontal from a 3m above the ground. Find the maximum height that that ball went, total time of flight and the range. speed is 28m/s

1. What is the difference between “resistance” and “resistivity”?

2. What is the rated resistance of a resistor coded with the color bands: Brown-Gray-White? (Google resistor color codes)

3. Voltmeters measure electric potential; ammeters measure electric current. Which of these two types of measuring device is likely to have an extremely high internal resistance? Which is likely to have a very low internal resistance? Explain your answers.

4. Suppose you have two light bulbs, A and B, which are identical in their construction except that the wire filament in bulb B is twice as thick as the wire filament in bulb A. If you apply the same voltage to the two bulbs, which glows brighter? Assuming the same operating efficiency for the two bulbs, how much brighter?

What is the KV in hand x-ray and why?

Needs the Kilovoltage and why (radiographic factor)

The Compton Effect. X-rays of wavelength ? = 61.0 pm are scattered from a thin foil of boron. What is the wavelength of the Compton scattered photons detected at the following angles (relative to the incident beam)? (Your answer should use three significant figures.)

(a) 15

1) find the vector sum of the three vectors A=0.98N (2cm) at 30˚, B=1.96N (4cm) at 90˚, C=2.94 (6cm) at 225˚. Record the results in graphical (head to tail) and analytical methods.

2) Add the following four displacement vectors using the analytic method. report the x and y components of the resultant, the magnitude of the resultant, and the direction of the resultant. show all work.

A= 5.0 m at 35˚

B= 7.0 m at 90˚

C= 3.0 m at 225˚

D= 2.4 m at 347˚

3)What possible sources of error can you identify for the graphical method of vector addition?

4) What possible sources of error can you identify for the analytical method of vector addition?

5) what possible sources of error can you identify for the experimental method of vector addition?

6) of the graphical and analytical methods, which one do you consider to be more accurate? Why?

7) Why is it not possible to experimently determine the esultant vector directly from the force table?

Can a single force applied to a body change both its translational and rotational motion? Explain and provide two different examples.