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A binary channel with capacity 36 k bits/sec is available for PCM voic transmission. If signal is band limited to 3.2 kHz, then the appropriate values of quantizing level L and the sampling frequenc
An aluminum sphere is 5.50 cm in radius. What is its volume expansion coefficient if it increases in volume 2.00 cm3 when heated from 100 oC to 151 oC?
An infinitely wide ,charged , non-conducting slab with a non-zero thickness is centered over the xy plane as described. It has a thickness of 2a.The volume charge density is z dependent and piece-wi
A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has an electrical capacity of 4000.0 oF and is charged to a potential difference of
The electric potential at a position located a distance of 18.9 mm from a positive point charge of 8.70×10-9 C and 13.9 mm from a second point charge is 1.42 kV. Calculate the value of the secon
A 85cm3 block of iron is removed from an 800oC furnace and immediately dropped into 200 mL of 20oC water. What fraction of the water boils away?
In a region of two-dimensional space, there are three fixed charges: 4 mC at (0,0), -4 mC at (-17 mm,5 mm), and 5 mC at (13 mm,1 mm). What is the absolute value of the net force on the -4-mC charge
An electron moving parallel to the x axis has an initial speed of 4.06 x 106 m/s at the origin. Its speed is reduced to 1.12 x 105 m/s at the point x = 2.00 cm. (a) Calculate the electric potential di
How many electrons should be removed from an initially uncharged spherical conductor of radius 0.200 m to produce a potential of 9.00 kV at the surface?
Neglect air resistance for the following. A soccer ball is kicked from the ground into the air. When the ball is at a height of 11.35 m, its velocity is (vx,vy) = (6.13,4.59) m/s.what is the horizon
The tennis ball covers a horizontal distance of 14.014 m before it hits the ground. At what height h above the ground was the tennis ball launched?
Two point charges are on the y axis. A 4.80-µC charge is located at y = 1.25 cm, and a -2.2-µC charge is located at y = 1.80 cm. (a) Find the total electric potential at the origin.
Air trapped in the container is compressed isothermally as the hydrostatic pressure increases. Develop an expression for the water hieight, y, inside the container in terms of th
Assume the surface distribution of charge on each sphere is uniform. Determine the tension in the wire.
A particle of mass m starting with an initial velocity v0 is acted on by a force F = m(kv + cv2), where k and c are constants. Calculate the displacement as a function of time.
Develop an expression for the water hieight, y, inside the container in terms of the container height, H, and depthe of submersion, h.
Find the electric field it creates at the origin. Answer with a Magnitude (N/C) and a direction (in degrees, counter-clockwise from +x direction)
How much time is needed for the plane to clear the intersection? (Note that the plane enters the intersection when any part of the plane is in the intersection and blocking the other runway. The pla
What is the voltage for each capacitor if plates of opposite sign are connected?
For a single, isolated point charge carrying a charge of q = 68.7 pC, one equipotential surface consists of a sphere of radius 22.4 mm centered on the point charge as shown. What is the potential on
A small glass bead charged to 6.6 nC is in the plane that bisects a thin, uniformly charged, 10-cm -long glass rod and is 4.0 cm from the rod's center. The bead is repelled from the rod with a
How much energy is transferred to her eardrums each second ? the answer should be in microJoules.
The star Vega has a measured angular diameter of 3.24 mas (milliarcseconds) and a flux of 2.84 x 10-8 W/m2. Its distance is 8.1 pc. What are Vega's diameter and effective temperature?
After 7 seconds, the speed of the automobile is 60 mph. Use this information to estimate the power required for this automobile to travel at 65 mph on this road.
A bullet weighing 50 grams and traveling at 200 m/s is shot into a stationary block of wood weighing 4 kg where it lodges. Determine how much each of the following changes from before the bullet str