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A cubical box of widths Lx = Ly = Lz = L = 4.82 nm contains eight electrons. What is the energy of the ground state of this system? Assume that the electrons do not interact with one another, and do
If the force between the spheres has a magnitude of 8.8×104 N, what is the distance between the spheres? What kind of force is this?
An electric dipole p of magnitude 25 p C • m makes an angle of 65º with a uniform electric field E of magnitude 3.0 x 10-6 N/C. What is the magnitude of the torque on the dipole?
A baseball traveling at 70 mph is hit back at the pitcher with a speed of 110 mph. If the ball remains in contact with the bat for 0.01 s, what is the average acceleration of the ball?
A long wire carrying a 5.5 A current perpendicular to the xy-plane intersects the x-axis at x=-2.0cm. At what point on the x-axis is the magnetic field zero if the two currents are in the same direct
The leaf then floats down the river at 3ms-1 FOR 20 seconds until it gets caught on a rock. How far and in what direction from the base of the tree is the rock?
What is the frequency at which it oscillates? What is the maximum current through the inductor as the circuit oscillates?
Question: A current of 5 amp exists in a 10ohm resistance for 4 minuteelectrons pass through any cross section of the resistor in this time?
An ice skater spins about a vertical axis through her body with her arms held out. As she draws her arms in, her angular velocity increases. You know this to be the case because:
The permeability of free space is µ0 = 4p ×10^-7 T·m/A. If a current of 24 A is established in this solenoid, what is its self-inductance?
A mass attached to a spring undergoes simple harmonic motion with an amplitude of 4.0 cm. When the mass is 2.0 cm from the equilibrium position, what fraction of its total energy is potential energy
Assuming that 11.0%of the energy is delivered to the muscle tissue and that the excess energy is removed from the body by sweating, determine the volume of bodily fluid (assume it is water) lost
If the force in the x direction is 60 N, and the force in the y direction is 150 N, find the acceleration in the x-direction, the y-direction, and the net resultant acceleration.
Find it's wavelength, frequency, speed, and direction of propagation. Calculate the displacement y of a point on a string at x = 0.015m at t=0. Note that the angle of the sine function is in radia
In a double-slit arrangement the slits are 1.80 x 10-5 m apart. If light with wavelength 600 nm passes through the slits, what will be the distance between them=2 and m=5 maxima on a screen 1.00 m
Suppose the leading cart is twice as massive as the trailing cart, where would the center of mass be for the system? Sketch to show thinking.
Light is reflected from a transparent coffee table. When the angle of incidence is 52.2°, the reflected light is completely polarized parallel to the surface of the table top. What is the ind
How much mass would have to be suspended from the vertical spring to stretch it the first 6.0 CM? How much more mass would have to be suspended from the vertical spring to stretch it the additional 2.
A bicycle tire whose volume is 2.80 10-4 m3 has a temperature of 294 K and an absolute pressure of 4.40 105 Pa. A cyclist brings the pressure up to 5.10 105 Pa without changing the temperature or vo
How much power must you exert to horizontally drag a 30.0kg table 12.0m across a brick floor in 25.0s at constant velocity, assuming the coefficient of kinetic friction between the table and floor
In a diesel engine, the piston compresses air at 309 K to a volume that is 0.0621 of the original volume and a pressure that is 48.3 times the original pressure. What is the temperature of the air a
A radius of 1.35 cm. a 255-g mass hangs from the other end of a string and is released. Write newtons second law for each of the three objects.
An unstable particle with a mass equal to 3.34 multiplied by 10-27 kg is initially at rest. The particle decays into two fragments that fly off with velocities of 0.981c and -0.864c, respectively. F
A wire carrying a 2-A current is placed at an angle of 60° with the respect to a magnetic field of strength 0.2 T. If the length of the wire is 0.6 m what is the magnitude of the magnetic forc
Explain how these two statements describe the 1st and 2nd law of thermodynamics.