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A 1.90-cm-high object is situated 12.8 cm in front of a concave mirror that has a radius of curvature of 10.4 cm, calculate the location and the height of the image
A railroad car of mass 2.52 104 kg is moving with a speed of 4.06 m/s. It collides and couples with three other coupled railroad cars, How much mechanical energy is lost in the collision
a block of mass 2.5 kg is placed at a distance d=0.300 m from the spring. from this posistion the block is projected toward the spring with a speed v
Define potential difference. What is the difference between electric potential and electric potential energy? What is the unit for potential difference
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle, What is the mass of the wheel
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r, how fast is the roller coaster traveling at the bottom of the dip
A proton moves through a magnetic field at 25.9% of the speed of light. what is the magnitude of the magnetic force acting on the proton
A molecule is represented by a charge -2q at the origin and charges +q at b1 and b2, where | b1 | = | b2 | = b, Find dipole moment of the molecule
A transformer has 350 primary turns and 1390 secondary turns. The input voltage is 120?V and the output current is 18.0A, find the output voltage and input current
A 2200 kg car is moving at a speed of 30.0 m/s. Determine the stopping distance (in meters) if the brakes supply a force of 3500 newtons
A 30 cm spring is compressed to 2 cm. a force of 200 N was used to do this. How much potential energy is stored in the spring
A mass is attached to a spring. It oscillates at a frequency of 4/? Hz when displaced a distance of 7.00 cm from equilibrium
A 3.07 kg particle has a velocity of (3.10 i hat - 4.04 j hat) m/s. Find the magnitude and direction of its momentum
A technician wraps wire around a tube of length 33 cm having a diameter of 7.9 cm, Find the self-inductance of this solenoid
A 76 kg sprinter starts a race with an acceleration of 5.8 m/s2, What is the magnitude of the net external force on him in N
An object with mass 3.2kg is executing simple harmonic motion, attached to a spring with spring constant 260N/m, Calculate the maximum speed attained by the object
A 0.25 m long wrench is placed around a bolt and a 20 N force is applied halfway along the wrench at an angle of 30 degrees, What is the torque (in Nm) applied to the bolt from this force
A juggler throws a ball straight up with some initial velocity. Half a second later, the juggler throws another ball straight up from the same height, then what is the initial velocity of each ball
A 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 N/m. Determine maximum height reached by dart.
The Black body radiation emitted from a furnace peaks at a wavelength of 4.1 x 10^-6 m (0.0000041m)
Two aluminum wires have the same resistance. If one has twice the length of the other, what is the ratio of the diameter of the longer wire to the diameter of the shorter wire
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, What emf and current are induced in the square coil
A 7.80-g bullet moving at 610 m/s penetrates a tree trunk to a depth of 5.80 cm, Use work and energy considerations to find the average frictional force that stops the bullet
Three capacitors, C1 = 3.30 µF, C2 = 7.26 µF, and C3 = 1.23 µF, are connected in series, What is the charge on the positive plate of the capacitor C2
A 12.0-V battery produces 205mA when it's across a 47.5? load, Find the potential difference across the battery's terminals