# physics ii

Popular questions
1. ## Physics II

A test charge of +2 μC is placed halfway between a charge of +6 μC and another of +4 μC separated by 10 cm. What is the magnitude of the force on the test charge?

asked by Sam on January 13, 2016
2. ## Physics II

A large cylindrical water tank 11.5 m in diameter and 13.5 m tall is supported 8.75 m above the ground by a stand. The water level in the tank is 10.6 m deep. The density of the water in the tank is 1.00 g/cm3. A very small hole is formed at the base of

asked by Lindsay on January 18, 2015
3. ## Physics II

A bead with a mass of 0.085 g and a charge of 20 nC is free to slide on a vertical rod. At the base of the rod is a fixed 20 nC charge. In equilibrium, at what height above the fixed charge does the bead rest?

asked by Alona on February 22, 2011
4. ## Physics II

An electron with an initial speed of 5.0 ✕ 105 m/s enters a region in which there is an electric field directed along its direction of motion. If the electron travels 9.0 cm in the field before being stopped, what are the magnitude and direction of the

asked by Beat on January 24, 2016
5. ## Physics II

As a new electrical technician, you are designing a large solenoid to produce a uniform magnetic field with a magnitude of 0.170 T near the center of the solenoid. You have enough wire for 3300 circular turns. This solenoid must have a length of 1.70 m and

asked by Tifani on July 10, 2007
6. ## Physics II

Margaret walks to the store using the path: 0.500 miles West, 0.200 miles North, 0.300 miles East. What is the total displacement (direction and length of the vector that points from her house directly to the store)?

asked by Tammy J on September 12, 2010
7. ## Physics II

A man weighs 0.80 kN on Earth. What is his mass in kilograms?

asked by Dakota on September 6, 2010
8. ## Physics II

The heating element of an electric oven is designed to produce 3.3 kW of heat when connected to a 240-V source. What must be resistance of the element?

asked by Jenny on February 8, 2008
9. ## Physics II

How much work (in joules) is done in moving a charge of 2.5μC a distance of 35 cm along an equipotential at 12~V?

asked by Mike on September 16, 2007
10. ## Physics II

Two long straight parallel wires separated by L2 = 8.16 cm carry currents of equal magnitude but heading in opposite directions. The wires are shown perpendicular to the plane of this page. Point P is L1 = 1.96 cm from wire 1 and the magnetic field at

asked by Tina on July 3, 2017
11. ## Physics II

The force on the rectangular loop of wire in the magnetic field in the figure below can be used to measure field strength. The field is uniform, and the plane of the loop is perpendicular to the field. Justify the claim that the forces on the sides of the

asked by Ashton on October 2, 2014
12. ## physics II

Two point charges of equal magnitude are 8cm apart. at the midpoint of the line connecting them, their combined electric field has a magnitude of 45 N/C.Find the magnitude of the charge.

asked by ike on April 13, 2011
13. ## physics II

A certain material is in a room at 27°C. If the absolute temperature (K) of the material is tripled, its resistance doubles. (Water freezes at 273 K.) What is the value for alpha (a) the temperature coefficient of resistivity?

14. ## Physics II

find the pressure at the bottom of a vessel 76cm deep when filled with a) water b)mercury (sp.g. 13.6)

asked by Precious on February 1, 2017
15. ## Physics II

Three identical resistors are connected in series. When a certain potential difference is applied across the combination, the total power dissipated is 18.0 W. What power would be dissipated if the three resistors were connected in parallel across the same

asked by Tifani on July 5, 2007
16. ## Physics II

Jose, whose mass is 75 kg, has just completed his first bungee jump and is now bouncing up and down at the end of the cord. His oscillations have an initial amplitude of 11.0 m and a period of 4.0 s. From what height above the lowest point did Jose jump?

asked by Colin on March 1, 2011
17. ## physics II

A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site for the first and the second bursts of

asked by ANA on January 31, 2015
18. ## Physics II

two perpendicular, long, straight wires, both of which lie in the plane of the paper. The current in each of the wires is I = 4.5 A. In the drawing dH = 0.13 m and dV = 0.48 m. Find the magnitudes of the net magnetic fields at points A and B. The drawing

asked by Mareena on February 12, 2012
19. ## Physics II

A block begins to slide down a ramp after being elevated to an angle of 55 degrees. What is the coefficient of static friction?

20. ## Physics II

What is the sign and magnitude of a point charge that produces a potential of -2.00 V at a distance of 3.00 mm?

asked by Steve on September 6, 2014
21. ## physics II

There is a pulse returns 3.0x10^-4 seconds after it is sent out, having been reflected by an object. What is needed is the distance between the radar antenna and the object? (c = 3x10^8 m/s)

asked by manny on August 1, 2010
22. ## Physics II

In resistance welding, a pair of electrodes presses two sheets of metal together. Heat from the passege of current melts the metal sheets where they are in contact between the electrodes to form a weld. What potential difference is needed to produce a

asked by Anonymous on January 13, 2019
23. ## Physics II

A 51.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 12 10-8 · m, and the density is 7.67 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5

asked by Stephanie on March 7, 2013
24. ## physics II

sUPPOSE YOU HAVE A square coil and a triangular coil each have sides of length L. The triangular coil has twice as many turns as the square coil. If a the same current is sent through each coil, when the coils are placed in the same uniform magnetic field

asked by manny on August 1, 2010
25. ## Physics II

Please can anyone explain. Thank you. A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site

asked by ANA on January 31, 2015
26. ## Physics II

Two charges, Q1= 3.20 microCoulombs, and Q2=5.90 microCoulombs, are located at points (0,-2.00cm) and (0,+2.00cm. What is the magnitude of the electric field at point P, located at (5.00cm,0), due to Q1 alone?

asked by John on February 11, 2011
27. ## Physics II

What is the sign and magnitude of a point charge that produces a potential of -2.00 V at a distance of 3.00 mm?

asked by Anonymous on September 6, 2014
28. ## Physics II

Two charges attract each other with a force of 3.0 N. What will be the force if the distance between them is reduced to one-ninth of its original value?

asked by Sophie on September 10, 2013
29. ## Physics II

A defibrillator passes a brief burst of current through the heart to restore normal beating. In one such defibrillator, a 47.0 μF capacitor is charged to 5.91 kV. Paddles are used to make an electrical connection to the patient's chest. A pulse of current

asked by Tina on July 3, 2017
30. ## Physics II

Find the work done in pulling a 120 gram box in an incline plane, 150 cm long and 90 cm high if the coefficient of friction is 0.25.

asked by Marie on August 25, 2011
31. ## physics II

the lens to retina distance in the human eye averages 2.0cm what is the power of the lens of the human eye

asked by kb on July 20, 2011
32. ## Physics II

A copper rod of length 0.83 m is lying on a frictionless table (see the drawing). Each end of the rod is attached to a fixed wire by an unstretched spring whose spring constant is k = 79 N/m. A magnetic field with a strength of 0.13 T is oriented

asked by Mareena on February 12, 2012
33. ## PHYSICS II

A uniform electric field of magnitude 3.00×10^4 N/C makes an angle of 37 degrees with a plane surface of area 1.40×10^−2 m^2. What is the electric flux through this surface? i got 321 using the formula electricflux = E A Cos(theta), but it's wrong.

asked by Cassie on January 17, 2011
34. ## physics II

Suppose there is a double loop of wire (making 2 turns) is in the x-y plane centered at the origin. There is also uniform magnetic field is increasing at a constant rate in the positive z-direction.Viewed from the positive z-axis, in which direction is the

asked by oliander on August 1, 2010
35. ## Physics II

For an object which is 4.0 mm in height located 6.0 cm to the left of a converging lens (positive f) of focal length +9.0 cm, determine the image location and characterize it. Show your work here. No Calculator. Image is located ________________cm to the

asked by Kendrick on May 1, 2017
36. ## Physics II

the velocity of water in a 4 cm diameter pipe is 2.0m/s.what is the velocity in a 2cm diameter pipe which connects with it,both pipes flowing full?

asked by Precious on February 1, 2017
37. ## PHYSICS II

When two identical ions are separated by a distance of 4.0×10^−10 , the electrostatic force each exerts on the other is 5.7×10^−9 . How many electrons are missing from each ion? what i did was used coulombs law to find the value of q1 and q2 , so

asked by Cassie on January 17, 2011
38. ## Physics II

A teacher of 75.0 kg bungee-jumps (steps from rest) from a 100 m tower towards a river. The cord can stretch 40.0% of its unstrecthed length and has a breaking strength of 5000. N (if tension is greater than this, it snaps). The cord stretches .250 meters

asked by Jacob on September 17, 2012
39. ## PHYSICS II

When two identical ions are separated by a distance of 4.0×10^−10 , the electrostatic force each exerts on the other is 5.7×10^−9 . How many electrons are missing from each ion? what i did was used coulombs law to find the value of q1 and q2 , so

asked by Cassie on January 17, 2011
40. ## physics II

What is the magnitude of the earth's gravitational field at the location of the ISS?

asked by Leigha on January 22, 2013
41. ## Physics II

1.given 30 m^3 of helium at 15 degree c and 1.0x10^5 Pa, determine the volume at -6 degree c and 5.6x10^4 Pa 2. if a mass of gas occupies 500 l at 16 degree c and 10^5 Pa,determine the volume at 38 degree c and 1.7x10^5 Pa. 3. Calculate the final

asked by Precious on February 1, 2017
42. ## Physics II

A positively charged particle is moving with a velocity v in a large homogeneous magnetic field. (a) If the field is 4 mT, the mass of the particle is 33·10−9 kg, its initial speed 8.1 m/s, and its charge 6 μC, what is the magnitude of its

asked by Ashton on October 2, 2014
43. ## Physics II

It is ~ 100 miles of mostly interstate driving to camp. Using your model from parts (b) and (c), how much does it cost me to drive to camp if I drive 55 mph, 65 mph, and 75 mph? (don’t forget the return trip) the current price of gas for part c is

asked by Henry on March 4, 2013
44. ## Physics II

Assuming equal point charges, calculate the magnitude of the charge in C if the electrostatic force is great enough to support the weight of a 1.95 mg piece of tape held 1.05 cm above another?

asked by Sam on January 13, 2016
45. ## Physics II

When an electron moves from A to B along an electric field line, the electric field does 3.94 x 10^-19 J of work on it. What are the electric potential differences (a) Vb - Va, (b) Vc - Va, and (c) Vc - Vb?

asked by Scott on February 13, 2011
46. ## Physics II

find the velocity of escape of water through a small opening in a broiler where the pressure is 10^6 Pa above atmospheric pressure, assumed h1=h2 and v1=0

asked by Precious on February 1, 2017