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A solid sphere of radius 40.0 cm has a total positive charge of 26.0 C uniformly distributed throughout its volume. Calculate the...
A solid sphere of radius 40.0 cm has a total positive charge of 26.0 C uniformly distributed throughout its volume. Calculate the magnitude of the electric field (a) 0 cm, (b) 10.0 cm, (c) 40.0 cm, and (d) 60.0 cm from the center of the sphere
A converging lens (f = 13.0 cm) is held 7.30 cm in front of a newspaper, the print size of which has a height of 1.90 mm. Find (a) the...
A converging lens (f = 13.0 cm) is held 7.30 cm in front of a newspaper, the print size of which has a height of 1.90 mm. Find (a) the image distance (in cm) and (b) the height (in mm) of the magnified print?
Two tiny conducting spheres are identical and carry charges of -26.5 C and +51.7 C. They are separated by a distance of 3.37 cm. (a) What...
Two tiny conducting spheres are identical and carry charges of -26.5 C and +51.7 C. They are separated by a distance of 3.37 cm. (a) What is the magnitude of the force that each sphere experiences?
Marks: 1 A 10-kg block on a horizontal frictionless surface is attached to a light spring (force constant = 0.80 kN/m). The block is...
Marks: 1 A 10-kg block on a horizontal frictionless surface is attached to a light spring (force constant = 0.80 kN/m). The block is initially at rest at its equilibrium position when a force (magnitude P = 80 N) acting parallel to the surface is applied to the block, as shown. What is the speed of the block when it is 13 cm from its equilibrium position?
The figure shows a rectangular array of charged particles fixed in place, with distance a = 39.2 cm and the charges shown as integer...
The figure shows a rectangular array of charged particles fixed in place, with distance a = 39.2 cm and the charges shown as integer multiples of q1 = 3.33 pC and q2 = 5.78 pC. With V= 0 at infinity, what is the net electric potential at the rectangle's center?
In the figure below, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a =...
In the figure below, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 8.50 cm. Each wire carries 18.0 A, and all the currents are out of the page. What is the net magnetic force per meter of wire length on wire 1?
Water flows at a speed of 1.7m/s through a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a...
Water flows at a speed of 1.7m/s through a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a diameter of 14cm. Treat the water as an idea fluid. (A) What is the speed with which the water flows through the wider section of the pipe? (B) What is the difference in pressure between a point within the fluid in the narrower section and a point within the fluid in the wider section? (C) In which section of the pipe is the pressure higher?
In a model AC generator, a 501 turn rectangular coil 8.0 cm by 30 cm rotates at 117 rev/min in a uniform magnetic field of 0.6 T. (a)...
In a model AC generator, a 501 turn rectangular coil 8.0 cm by 30 cm rotates at 117 rev/min in a uniform magnetic field of 0.6 T. (a) What is the maximum emf induced in the coil?
a parallel-plate capacitor has square plates of side 8.0 cm seperated by .80 mm. if you charge this capacitor to 15 V, the amount of...
a parallel-plate capacitor has square plates of side 8.0 cm seperated by .80 mm. if you charge this capacitor to 15 V, the amount of charge transferred from one plate to the other is:
Two long, parallel wires, each with a mass per unit length of 43 g/m, are supported in a horizontal plane by 6.0 cm long strings, as...
Two long, parallel wires, each with a mass per unit length of 43 g/m, are supported in a horizontal plane by 6.0 cm long strings, as shown in Figure P19.66. Each wire carries the same current, I, causing the wires to repel each other so that the angle, , between the supporting strings is 16 .
"A 11.0 g bullet is fired horizontally into a 102 g wooden block that is initially at rest on a frictionless horizontal surface and...
"A 11.0 g bullet is fired horizontally into a 102 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring of constant 141 N/m. The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 82.0 cm, what was the speed of the bullet at impact with the block?"
A 10-kg block on a horizontal frictionless surface is attached to a light spring (force constant = 0.80 kN/m). The block is initially at...
A 10-kg block on a horizontal frictionless surface is attached to a light spring (force constant = 0.80 kN/m). The block is initially at rest at its equilibrium position when a force (magnitude P = 80 N) acting parallel to the surface is applied to the block, as shown. What is the speed of the block when it is 13 cm from its equilibrium position?
The 14.1 cm diameter disk rotates on an axle through its center. F1=15.1 N, F2=32.4 N, F3=32.4 N, F4=15.1 N, and d=4.03 cm. What is the...
The 14.1 cm diameter disk rotates on an axle through its center. F1=15.1 N, F2=32.4 N, F3=32.4 N, F4=15.1 N, and d=4.03 cm. What is the net torque about the axle?
three uniform thin rods, each of length L = 45 cm, form an inverted U. The vertical rods each have a mass of 19 g; the horizontal rod has...
three uniform thin rods, each of length L = 45 cm, form an inverted U. The vertical rods each have a mass of 19 g; the horizontal rod has a mass of 42 g. What are (a) the x coordinate and (b) the y coordinate of the system's center of mass
A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 C. Determine the change in the area of the circle if the...
A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 C. Determine the change in the area of the circle if the temperature is increased to 625.0 C. The coefficient of linear thermal expansion for lead is 29.0x10 6/C .
A 5.40 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing up. During...
A 5.40 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing up. During the course of 0.130 s, the field is changed to one of 0.300 T pointing down. What is the average induced emf in the coil?
In the figure below, two blocks, of mass m1 = 350 g and m2 = 710 g, are connected by a massless cord that is wrapped around a uniform...
In the figure below, two blocks, of mass m1 = 350 g and m2 = 710 g, are connected by a massless cord that is wrapped around a uniform disk of mass M = 500 g and radius R = 12.0 cm. The disk can rotate without friction about a fixed horizontal axis through its center; the cord cannot slip on the disk. The system is released from rest.