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A 60.0-O resistor is connected in parallel with a 120.0-O resistor. This parallel group is connected in series with a 20.0-O resistor. The total combination is connected across a 15.0-V battery. Fin
Find (a) the angle between the direction of motion of the second ball and the original direction of motion of the cue ball and (b) the original speed of the cue ball.
What is the magnitude of the frictional torque that must be exerted by the axle if the system is to be in static equilibrium? (Answer should be in N m)
A tropical fish aquarium with 5 ocean species of fish has flat glass sides. A beam of light from outside the aquarium strikes the glass at a 47.0º angle to the perpendicular. What is the angle
A concrete block with a specific weight of 23.6 kN/m3 is suspended by a rope in a solution with a specific gravity of 0.8. What is the volume in m3 of the concrete block if the tension in the rope is
The mass of a pendulum bob is .375 Kg. The length of a pendulum is 800 mm. If the bob is released at 20.0º to the vertical: What is the total energy stored in the oscillation, assuming no losses?
Using Faraday's Law of Induction, calculate the magnitude of the potential difference induced in the moving rod.
Derive an expression for the terminal velocity of the bar if it is allowed to fall free along this frame starting from rest. Neglect friction between the wired and metal bar.
You may introduce other variables to help you reach a solution but your final solution can only contain the given variables and g.
A 2.0 mH inductor is connected in parallel with a variable capacitor. The capacitor can be varied from 100 pF to 200 pF. Part A: What is the minimum oscillation frequency for this circuit?
While transporting the sink to his new apartment, Hal drops the sink of a balcony 5.00 meters above the ground. Luckily, Hal's sink, Eafin, lands on a padded spring which compresses it a distance of
When an 81.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 1.75 x 103 J. By how much does the potential energy of a(n)
For comparison, a .22 caliber bullet has a mass of 2.6 g and, starting from rest, exits the barrel of a gun with a speed of 409 m/s. Determine the work done to launch the motion of both the hammer a
A 6500-kg satellite is in a circular earth orbit that has a radius of 3.4 x 107 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 8.3 x 106 m
In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 3.80 107 J at lift-off. What is the work done on the jet by the catapult?
The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 6.00 m. Find the work done by the kinetic frictional force.
A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 18.0 m. She pushes in a direction 30.0° below the horizontal. A 60.0-N frictional force opposes the motion of th
A dye molecule has emission cross section cm2 at nm, and fluorescence lifetime 3 ns. Assuming the transition is homogenously broadened, calculate the signal intensity at which the gain is reduced by
A spark can jump between two nontouching conductors if the potential difference between them is sufficiently large. A potential difference of approximately 940 V is required to produce a spark in an
Find the magnitude of the magnetic force on the proton. ( The magnetic force experienced by the proton in the magnetic field is proportional to the component of the proton's velocity that is perpend
The sodium D line is a doublet consisting of two wavelengths, 588.995 and 589.592 nm. Compute the angular separation between these two lines in the first-order spectrum for a grating with 4000 lines
If 720-nm and 660-nm light passes through two slits 0.58 mm apart, how far apart are the second-order fringes for these two wavelengths on a screen 1.0 m away?
A 8.00 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 T pointing up. During the course of 0.180 s, the field is changed to one of 0.250 T
A sodium vapor light emits 10 W of light energy. Its wavelength is 589 nm, and it spreads in all directions. How many photons pass through your pupil, diameter 4mm, in 1 s if you stand 10 m from the