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A block of ice weighs 100 N. You can lift the block vertically a distance of 2 m. You can also push the same block up a ramp that is 4 m long, What is the increase in the block's gravitational poten
The tension in a ligament in the human knee is approximately proportional to the extension of the ligament, What is the tension in this ligament when it is stretched by 0.67 cm
Carbon dioxide gas is heated as it flows steadily through a 2.5-cm-diameter pipe. At the inlet, the pressure is 2 bar, determine the rate of heat transfer to the carbon dioxide, in kW
A 3.83m -long coil containing 225 loops is wound on an iron core (average ?=1850?0) along with a second coil of 115 loops, Determine the mutual inductance M. (units of H)
Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.2 mm, What is the resistance ratio RA/RB , measured between their ends
A typical compact disc stores information in tiny pits on the disc's surface. What's the frequency of electromagnetic waves that have a wavelength equal to the typical CD pit size
A solid steel rod of length 120-cm and mass 450 grams, is rotated about its center with an angular acceleration 23 rad/s2. What is the moment of inertia of the rod, What is the net torque acting on
Two positive charges, one of magntude Q and the other of magnitude 2Q, and one negative charge of magnitude -Q are placed on a straight line, Find both the magnitude and direction of the net force on
3 an observer in spaceship B obverses another spaceship A travelling with a velocity of 0.40 c relative to him. Both are moving in the +x-direction, how much time it takes the missile to reach you
Jane plans to fly from Binghampton, New York, to Springfield, Massachusetts, about 280 km due east of Binghampton, What was the wind velocity
7 an x-ray tube is operating with energy of 16 keV the produced x-rays photon strike a target and are compton-scattered at an angle of 45 degrees, what is the energy of the scattered x-ray photon in
A long, straight wire carrying a current of 3.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 2.00 m
A charged oil droplet falls 5.0 mm in 20.0 s at terminal speed in the absence of an electric field. What are the mass and radius of the drop
A physics book (mass=3.0 kg) is given a horizontal velocity of 4.0 m/s out the window. Determine the work down by gravity while the book is in between the two windows
A pendulum clock keeps time by the swinging of an attached mass at the end of a massless string of length L, What is the angular position of the mass at t = 0.246s
A piece of wood of density of mass 5kg is 400 x 500 x 300mm thick. When it is floating water, how much of this thickness h is submerged, What is the weight of this substance
A 74.9-kg skier rides a 3180-m-long lift to the top of a mountain. The lift makes an angle of 17.0 ° with the horizontal
A person pushes a 21.9-kg shopping cart at a constant velocity for a distance of 23.8 m on a flat horizontal surface. What is the magnitude of the force that the shopper exerts
One electron collides elastically with a second electron initially at rest. After the collision, the radii of their trajectories are 1.50 cm and 2.90 cm, Determine the energy (in keV) of the inciden
A 8.80-g bullet has a speed of 1.17 km/s. What is the bullet's kinetic energy if its speed is halved
A girl of mass m 1 =60 m_1 = 60 kilograms springs from a trampoline with an initial upward velocity of v i =8.0 v_i = 8.0 meters per second, What is height max with respect to the top of the trampoli
A small motor draws a current of 1.75 A from a 120.0 V line. It costs $35.81 to operate the motor for 4.00 hrs at $0.0600 /kWh, What is the power output of the motor
When the emf for the primary of a transformer is of amplitude 7.10 V, the secondary emf is 85.2 V in amplitude. What is the transformer turns ratio
When a 24 Ohm resisotr is connected across a 12 Volt Battery, a current of 482 ma flows. What is the power delivered by the emf of the battery
In an open RC circut, the total resistance is 15Kohms and the battery emf is 24 and constant is measured to be 35 microsecond calculate (a) the total capacitance of the circuit