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An alpha particle (m = 6.68×10-27 kg, q = 3.20×10-19 C) circularly orbits a charged sphere at a radius of 5.00 cm from the sphere's center.
A glass graduated cylinder has a volume of 250 milliliters at 0° C if the temperature is increased to 45° C will its volume increase or decrease? Calculate the change.
The ball is launched at an angle of 55.1 ° above the ground. Determine the (a) horizontal and (b) vertical components of the launch velocity.
Consider a uniform electric field of 50 N/C directed toward the east. If the voltage measured relative to ground at a given point is 80 V, What is the voltage at a point 1.0 m directly west of that
A Styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended?
(a) If the phone is 40 m above the ground when it is dropped, how long does it take for the phone to reach the ground? (b) What is its velocity just before it lands? Choose upward as the positive dire
A 50-g bullet is fired into and becomes embedded in a 300-g wooden ballistic pendulum with a solid arm. If the pendulum rises a maxium vertical distance of 0.35m what was the speed of the bullet jus
A point particle with charge q = 52 µC is placed at a corner of a cube of edge a = 7.8 cm. What is the flux through (a) each cube face forming that corner and (b) each of the other cube faces?
At this temperature, the silicon resistor has a temperature coefficient of resistivity of -0.070°C-1 and the tungsten resistor has a coefficient of 0.0050°C-1. At what temperature will their r
A sound has an intensity of 38.0 w/m2. A second sound has an intensity level which is 2.5 dB greater than the intensiry level of the first sound. What is the intensity of the second sound?
There is an electric field that points radially outward everywhere on the sphere's surface, with a strength of exactly 244 N/C at all points on the surface. Use Gauss' law to find the total charge e
The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. By how much does the rocket clear the top of the wall?
A charge of +18.0nC is placed on the y-axis at y=-12 cm and a charge of -18.0 nC is placed on the y-axis at y=6.00 cm. a) determine the electrical potential at y=18.0 cm b) What is the difference in
This unit is actually a measure of the charge that the battery contains, and may be converted directly to Coulombs by the formula 1 mAh = 3.6 C. How many Coulombs of charge are contained in a AA bat
Charge is uniformly distributed along a thin stick laid on the x-axis. The stick extends from x=0 to x=b, and has charge density o.
When the region between the plates of a certain capacitor is filled with a dielectric material, its capacitance increases from 120 µF (microfarads) to 540 µ F (microfarads). What is the
After a fourth unmeasured displacement, she find herself back where she started. Determine magnitude and direction of the fourth displacement!
When a potential difference of 7.35 volts is applied to a certain ohmic resistor, the current in the resistor is 0.919 A. What is the current when the applied potential difference is 13.3 volts?
A 2 meter long air column is open at both ends. The frequency of a certain harmonic is 410 Hz, and the frequency of the next higher harmonic is 492Hz. What is the speed of sound in the air column?
A 5.00 kg mass is hung by a vertical steel wire 0.500 m long and 6.0 x 10^ -3 cm^2 in cross-sectional area. Hanging from the bottom of this mass is a similar steel wire, from which in turn hangs a 1
When the vibratopr is set to a frequency of 120 Hz, a standing wave with 6 loops is formed. What must be the linear mass density of the cord?
An observer, originally positioned at one of the speakers, begins to walk along a line perpendicular to the line joining the two speakers. (a) How far must the observer walk before reaching relative
The potential difference between the anode and cathode is 350 V. An electron leaves the surface of the cathode with zero initial speed (v_initial = 0). Find its speed v_final when it strikes the ano
How far does the ball drop due to effects of gravity by the time it reaches home plate? (Ignore any effects due to air resistance and assume you throw the ball horizontally.)
A 6.10×10^-2kg cube of ice at an initial temperature of -18.0 C is placed in 0.880kg of water at 41.0 C in an insulated container of negligible mass. Part A: Calculate the change in entropy o