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The electric field everywhere on the surface of a charged sphere of radius 0.290 m has a magnitude of 600 N/C and points radially outward from the center of the sphere. What is the net charge on the
The safe slides with a constant speed if Clyde pushes from behind with 440 N of force while Bonnie pulls forward on a rope with 310 N of force. What is the safe's coefficient of kinetic friction on
A spherical region of radius R has volume charge density given by P=kr^2 A) Find the electric field inside and outside the sphere.
The Z-axis is normal to the plane , and the dipole vector is the x direction. A) Find the potential. B) Find the surface charge density on the conductor.
Poisson's ratio for polyethylene is 0.45. What change in volume takes place when a cube of polyethylene of volume 1.0 cm³ is subjected to a uniaxial stress that produces a strain of 1%?
The density of bcc iron is 7,900 kg m-3 and its atomic weight is 56. What is the length of the side of the unit cell and the interatomic spacing in an iron crystal.
What is the flux of energy arising from a temperature gradient of 2.5 Km-1 in a sample of argon in which the mean temperature is 273K.
Find a Parametric expression for the perpendicular bisector of the segment with endpoints A = (0,6) and B = (4, 0). Plot the segment and the line.
Create a uniform (constant & parallel) magnetic field in a small volume of space. The field should be .5 tesla, equal to the strength of the Earth's magnetic field. you can get a current of 2 Am
How would the volts across the meter & how many amps flow through change in a circuit if we changes the input from 12V dc to 12V ac? The circuit has 100 turns & 1A.
A 2980-kg spacecraft is in a circular orbit a distance 1860 above the surface of Mars. How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4150 above
A spacecraft is to be launched from the surface of the earth so that it will escape from the solar system altogether.
A toaster oven is rated at 1200 W for operation at 120 V/60 Hz. Part A: What is the resistance of the oven heater element?
A flash unit for a camera has a capacitance of 1035 µF. What resistance is needed in this RC circuit if the flash is to charge to 84% of its full charge in 21.1 s?
Assuming that the star has radiated at this same rate for its entire lifetime of 4.8 x 10^9 y, and that its current mass is 1.7 x 10^30 kg, what percentage of its original mass has been converted to
What is the peak current through the resistor if the emf frequency is 100 kHz ? Express your answer using two significant figures.
A transformer has 1200 turns in the primary coil and 140 turns in the secondary coil. If the primary coil is connected to a 120 V outlet and draws 6.0×10-2 A , what are the voltage and current o
If you simplify and treat each atom as a cube, (a) what is the average volume (in cubic meters) required for each iron atom and (b) what is the distance (in meters) between the centers of adjacent a
A gallon of gasoline releases about 2.0 x 10^8 J of energy when it is burned. How many gallons of gas must be burned to release the same amount of energy as is released when 0.4 lb of 235/92 U under
A high-voltage transmission line is made of bare wire; it is not insulated. Assume that the wire is 100 km long, has a resistance of 7.0 Ω , and carries 200 A .
A giant "egg" explodes as part of a fireworks display. The egg is at rest before the explosion, and after the explosion, it breaks into two pieces, with the masses indicated in the diagram, traveli
The 4 kg puck has a velocity of 3.00i m/s at one instant. eigth second later its velocity is (8i+10j)m/s. assuming the rocket engine exerts a constant horizontal force, find the components of the fo
A friend throws Olaf a ball of mass 0.400 that is traveling horizontally at 10.2 . Olaf's mass is 65.5 .A. If Olaf catches the ball, with what speed do Olaf and the ball move afterward?
A 310-g air track cart is traveling at 1.25 m/s and a 260-g cart traveling in the opposite direction at 1.33 m/s. What is the speed of the center of mass of the two carts?
A 60.0-kg man stands at one end of a 20.0-kg uniform 10.0-m long board. How far from the man is the center of mass of the man-board system?