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A 3.65 uf capacitor, a 9.25 uf capacitor, and a 6 V battery are connected in parallel to make a complete circuit. what is the voltage of each capacitor
A 15 kg box is pulled horizontally by a 20 N force on a frictionless surface. What is the change in kinetic energy of the box
A 12.0-V battery produces 215mA when it's across a 42.0? load. What's the battery's internal resistance
A 40 g bullet traveling 500 m/s penetrated 5 cm into a tree trunk. what was the retarding force on the bullet
A net force of 7 newtons acts on an object that weighs 49 newtons. What is the resulting acceleration
A 200 N object is supported by two ropes. Rope 1 makes an angle of 35 degrees with the horizontal, What is the amount of tension in each rope
A 10kg mass that is moving at 15m/s hits a stationary 10kg mass. The collision is elastic. what is the total momentum BEFORE the collision
What is the net upward force on an airplane wing of area 27.8 m2 if the speed of air flow is 242 m/s across the top of the wing
A 2.5 cm-long horizontal wire segment has mass 0.15 g and carries a current sufficiently large that it levitates when the segment is in a region of B field upward with magnitude 1.5 T
At a particular instant of time a light beam traveling in the positive x direction, find the direction of the electric field and explain
In the alpha decay of 211 Bi to 207 Tl two groups of alpha particles with known energies 6.623 and 6.279 MeV, are observed. What is the energy difference between these two states
A long solenoid that has 1,060 turns uniformly distributed over a length of 0.395 m produces a magnetic field of magnitude 1.00 10-4 T at its center
Calculate the Q-value of the alpha decay of 211Po. It was found that 211Po can follow an alpha decay to an meta state. The alpha energy in this decay is 7.275 MeV
A person can't see objects clearly that are closer than 80 cm. What is the refractive power of the contact lenses wouyld you prescribe
Calculate the Q-value, recoil energy of the daughter nucleus and the kinetic energy of the alpha particle in the following alpha decays
An electric motor can accelerate a Ferris wheel of moment of inertia I = 19500 kg·m2 from rest to 9.4 rev/min in 12.0 s, Determine the torque generated by the motor to bring the wheel to 9.4 re
A disk of radius "r" and uniform surface charge density finalized_jax">\(\sigma\) spins with angular velocity %u03C9 about the y-axis
A 5-nC charge is located at x = 5 cm and a charge of -6nC is located at x = -4 cm. Find the monopole moments
A glass rod that has been charged to + 17.0nC touches a metal sphere. Afterward, the rod's charge is + 9.0nC
An alpha particle (a He nucleus, containing two protons and two neutrons, What is the diameter of the path followed by this alpha particle
Two 480g blocks of wood are 2.0 m apart on a frictionless table. A 9.0g bullet is fired at 440m/stoward the blocks. What is the speed of the second block after the bullet stops
two conducting spheres, one of radius 6.0 cm, and the other of radius 120 cm, each have a charge of 20 nC, calculate the surface charge density of each sphere
A uniform magnetic field , with magnitude 1.2 mT, is directed vertically upward throughout the volume of a laboratory chamber. What magnetic deflecting force acts on the proton as it enters the chambe
A blackened, solid copper sphere that has a radius equal to 4.5 cm hangs in an evacuated enclosure whose walls have a temperature of 23°C. find the initial rate at which its temperature changes
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. Find the power consumed by the air filter.