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A metal surface with a work function of (W1=3eV) is illuminated with a monochromatic ultraviolet light of frequency v*1. The maximum speed of the ejected photo electrons was found to be v1=0.6x10^6
An electron is projected with an initial speed of 3.9 X10^5 m/s directly toward a proton that is fixed in place. If the electron is initially a great distance from the proton, at what distance from
which does not slip against the road surface. since the wheel does not slip the road must be appplying a force of static friction to the wheel that produces a countertorque. moreover, the car has a
A 1.00 kg glider attached to a spring with a force constant 49.0 N/m oscillates on a horizontal, frictionless air track. At t = 0, the glider is released from rest at x = -3.50 cm. (That is, the spr
Assume that the separation is large enough for us to assume that the charge on each sphere is uniformly distributed (the spheres do not affect each other). Take V = 0 at infinity.(a) Calculate the
Two +1 microCoulomb point charges are located on the x-axis, at x = 2m and at x = -2m. Find the magnitude of the electric field at the origin.
A screen is placed 1m from a single slit which is illuminated with 690 nm light. The slit width is 0.1 mm. What is the distance from the central maximum to the first minimum of the diffraction patte
A 60 W lamp is connected in series with a 12 V emf. How much current (in A) flows through the lamp? Please round the solution to an integer.
A single square loop of wire has a resistance of 2 Ohm. The length of each side of the square is 0.5m. A magnetic field whose direction makes an angle of 45 degrees with the normal to the plane of t
A resistor operated at 100V generates Joule heat at a rate of 20W. When placed across a 220V source, it will draw a current of:
An 8 Ohm speaker is connected across the output terminals of a power amplifier that delivers 72 W. What is he current supplied to the speaker (in A)?
Two hand-held radio transceivers with dipole antennas are separated by a large, fixed distance. Assuming a vertical transmitting antenna, what fraction of the maximum receiving power will occur in t
A spherical drop of water carrying a charge of 20 pC has a potential of 530 V at its surface (with V = 0 at infinity). (a) What is the radius of the drop?
As a space shuttle moves through the dilute ionized gas of Earth's ionosphere, the shuttle's potential is typically changed by -2.9 V during one revolution. By assuming that the shuttle is a sphere
Two large, parallel, conducting plates are 21 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 3.2 x 10-15 N acts on an electron pla
A classical system of N distinguishable non-interacting particles of mass m is placed in a three dimentional harmonic well : U(r) = (X2 + y2 + Z2 )/2V2/3 . Find:
What is the minimum height you would have to place a solid ball of mass M and radius R (I = 2MR2 / 5) on a hill in order for the ball to make it completely around a circular loop at the bottom of th
How many times a minute will they spin together if the record player base and the record stick together (assume there is no slipping when the record lands on the base)? Remember, for a solid disk or
A 1.60*10^3 kg car rounds a circular turn of radius 22.0 m. If the road is flat and the coefficient of static friction between the tires and the road is 0.7, how fast can the car go without skidding
An airplane is flying in a horizontal circle at a speed of 122 m/s. The 80.0 kg pilot does not want his centripetal acceleration to exceed 6.00 times free-fall acceleration.
A supertanker with the mass of 8.92 × 109 kg is moving with a constant velocity. Its engines generate a forward thrust of 2.05 × 105 N. Determine (a) the magnitude of the resistive force e
A car zooms around a curve (radius = 20 m) at a speed of 20 m/s. a. What is the centripetal acceleration of the car?
If a +1 micro-coulomb charge is next to a +4 micro-coulomb charge, the magnitude of the repulsive force on the +1 micro-coulomb charge is the same for both particles right?
If a neutral metal sphere is connected to ground through a wire, when a positively charged glass rod comes close to the sphere, electrons are attracted to the positively charged glass rod. When the
Car A and Car B are in a crash. Car A has a total mass of 274 kg, while car B has a total mass of 272 kg. The coefficient of restitution for a collision between two cars is 0.85.