Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Two circular disks spaced 0.50mm apart form a parallel-plate capacitor. Transferring 1.40E9 electrons from one disk to the other causes the electric field strength to be 1.60E5. What are the diamete
How much energy must the water transfer to its surroundings in order to freeze completely?
Each of 106 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 106 N. What is the tension in the string
A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +1.7. What is the magnification when the convex side is used as a mirror, the object rem
Find the magnitude of the electric field at all points in space both inside and outside the slab, in terms of x, the distance measured from the central plane of the slab. What is the field for x = 1
An assembly line has a staple gun that rolls to the left at 1.50 while parts to be stapled roll past it to the right at 2.80 . The staple gun fires 5.00 staples per second. How far apart are the st
A square metal plate of edge length 11.0 cm and negligible thickness has a total charge of 4.00×10-6 C. Estimate the magnitude E of the electric field just off the center of the plate (at, say
Charge is distributed uniformly throughout the volume of an infinitely long cylinder of radius R = 4.00×10^-2 m. The charge density is 5.00×10^-2 C/ m^3. What is the electric field at r
What time interval is required for the woman to travel the distance L? (Use any variable or symbol stated above as necessary.)
The athlete is able to rotate the ball at the rate of 8.48 rev/s when the length of the chain is 0.600 m. When he increases the length to 0.900 m, he is able to rotate the ball only 5.92 rev/s. (a)
What is the ratio of the final surface charge density of sphere 1 to that of sphere 2? (Answer with 2 significant figures.)
The weight of the car is 14 kN. You know three points on the plane: A=(2i+6j+1k), B=(2i+5j), C=(5i+2j) (all in meters). What is the force of friction (Ff=?).
A 50. cm diameter wheel is rotating inititally at 2.0 Revolutions per second. It slows down uniformly and comes to rest in 15 seconds. a. what was its angular acceleration?
A 9.0 µF capacitor is charged by a 14.0 V battery through a resistance R. The capacitor reaches a potential difference of 4.00 V at a time 3.00 s after charging begins. Find R.
A hiker walks 53.1 degrees north of east for 2.5km then due east for 2.0km. What is her total displacement from her starting point if you measure the distance along a straight line?
You are in a boat that can move in still water at 7.0 m/s. You point your boat directly East across a river to get to the other side that is 200 m away. The river is flowing at 4.0 m/s. (a) Determi
On a snowy day with the temperature near the freezing point, the coefficient of static friction between a car's tires and an icy road is 0.08. What is the maximum incline that this four-wheel-drive
A helicopter moves in such a way that its position at any time is described by the horizontal and vertical equations x = 5t + 12t2 and y = 10 + 2t + 6t2 , where x and y are in meters and t is in se
If the heat loss from the portable classroom is 15 kW, how many heating units are required to maintain the classroom at a temperature of 20 degrees celcius?
A well with vertical sides and water at the bottom resonates at 10 Hz and at no lower frequency. The air in the well has a density 1.04 kg/m3 and a bulk modulus of 1.01 x 105 Pa. How far down (in m)
Limit your drawing to the region between the plates, avoiding their edges, and draw the lines for surfaces that are 10.0 V apart, starting at the low-potential plate.
A parallel-plate air capacitor has a capacitance of 500pFand a charge of magnitude 0.250uC on each plate. The plates are 0.700mm apart. What is the surface charge density on each plate? (what does
Two wheels, A and B, are arranged by a belt system. The radius of B is three times the radius of A. What would be the ration of the rotational inertias Ia/Ib if (a) both wheels have the same angular
Assume the earth to be sphere of a uniform density, (a) what is its rotational energy? Take the radius of the earth to be 6,400 km and the mass of the earth to be 6x10^24kg.