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A thin double convex lens is to focus the image of an object onto a screen so that the image is life-sized. What is the total distance L between object and image
Suppose one gallon of gasoline produces 1.41×108 J of energy, and this energy is sufficient to operate a car for 20.0 miles. how many miles could the car go on a single tablet
A person with mass m1 = 60 kg stands at the left end of a uniform beam with mass m2 = 107 kg and a length L = 3.5 m. What is the location of the center of mass of the system
Force F = (6.0 N) i hat + (-9.0 N) k hat acts on a pebble with position vector r = (0.90 m) j hat + (-0.6 m) k hat, What is the resulting torque acting on the pebble about the origin
A solid disk rotates in the horizontal plane at an angular velocity of 0.049 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
A certain gyroscope consists of a uniform disk with a 48 cm radius mounted at the center of an axle that is 12 cm long, what is the precession rate
A small fly of mass 0.21g is caught in a spider's web. What is the value of the effective spring stiffness constant k for the web
The springs of a 1500kg car compress 6.0mmwhen its 61kg driver gets into the driver's seat. what will be the frequency of oscillations
Derive a formula for the maximum speed vmax of a simple pendulum bob in terms of g, the length L
During a 58-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 7.1-mA, What is the change in the primary current
A simple model considers a continent as a block (density ? 2800 kg/m3), estimate the height of the continent above the surrounding mantle rock
Determine the distribution of charge which is responsible for creating this electric field. Hint: consider a Gaussian surface which is a cylinder of radius R
A long solenoid (cross-sectional area = 1.0 x 10-6 m2, number of turns per unit length = 2380 turns/m) is bent into a circular shape so it looks like a doughnut. Find the emf induced in the toroid
Describe the process of fission, the products resulting from fission, and the fate of the different neutrons resulting from fission
An automobile with a mass of 2250 slugs is driven around a circular curve, What is the centripetal force on the car
Two identical +45.3 nC point charges A and B, with masses of 3.0*10^-9 kg each, are fixed in place with a distance of 2.54 cm between them. Calculate the speed of charge B when it has reached a dista
A block of mass 5kg is attached to a spring of 3000N/m and compressed a distance of 0.3m. What are the period, frequency, and angular frequency
Two coils of wire are placed close together. Initially, a current of 2.27 A exists in one of the coils, What is the mutual inductance of the two-coil system
Two sinusoidal waves of the same period, with amplitudes of 7.3 and 7.60 mm, What is the phase constant of the 7.60 mm wave in rads
Two identical piano wires have a fundamental frequency of 491 Hz when kept under the same tension. when both wires oscillate simultaneously
35mm camera is equipped with a 45 mm focal length lens is used to photograph a tree 15 m tall, what is the aperture diameter
Suppose the rotational kinetic energy of a solid disc is 1000 J when the disk has an angular velocity of 3 rad/s. What is the disk's moment of inertia
A particle is projected from the surface of Earth with a speed equal to 3.4 times the escape speed. When it is very far from Earth
Since Selma had so much fun, Arnold decides to take up sky diving as well. He falls out of the plane (with a parachute) and after a long time reaches a roughly constant speed of 55m/s. How far did h
A 5.0mL syringe has an inner diameter of 4.5mm , a needle inner diameter of 0.29mm, What is the minimum force the nurse needs to apply to the syringe