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The distance of light speed in a 24hr p. x 365 days up to 1 thousand years as a constant, would equal a finite distance and time to reach that distnation. Suppose; it took to reach the same distance
The resistance connected in series with the galvanometer is 1679 for the 20 scale and 2937 for the 30 scale. Determine the internal resistance of the galvanometer.
Bill steps off a 3.4 m high diving board and drops to the water below. At the same time, Ted jumps upward with a speed of 3.9 m/s from a 1.0 m high diving board. Choosing the origin to be at the wat
What is the temperature at the junction between the two bars? What is the total rate of heat conduction?
A point charge of 5 µC is located at x = -3.0 cm, and a second point charge of -9 µC is located at x = +4.0 cm. Where should a third charge of +6.0 µC be placed so that the electri
The 4.0 V battery is then disconnected and replaced with a 8.0 V battery, with the positive and negative terminals connected in the same manner as before. How much additional charge flows to the pos
The spring has 670 and negligible mass. When the spring is released, the glider travels a maximum distance of 1.50 along the air track before sliding back down. Before reaching this maximum distanc
A point on the outer rim of a tire on a moving vehicle exhibits uniform circular motion with a frequency of 28 Hz. The diameter of the tire is 35.4 cm. How fast is the car moving? Answer in units of
At the top of the loop, the pilot feels weightless. What is the speed of the airplane at this point?
What is the angle of the string with the vertical when the bob reaches its greatest height?
Their handles are insulated to prevent injury to the operator, who calls. "Clear!" and pushes a button on one paddle to discharge the capacitor through the patient's chest. Assume an energy of 320 W
A 4.8-µC point charge is located at x = 1.2 m, y = 3.2 m, and a -3.9-µC point charge is located at x = 2.3 m, y = -2.1 m. (a) Find the magnitude and direction of the electric field at x =
An electron initially traveling at a speed of 10^5m/s enters a region where there is a uniform magnetic field of 2T orientated 45 degrees to its initial velocity. Quantitatively describe the traject
What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 7.9 m/s when going down a slope for 7.4 s? How far does the skier travel in this time?
A crate is pulled 2.0 m at constant velocity along a 15 degree incline. The coefficient of kinetic friction between the crate and the plane is 0.160. Calculate the efficiency of this procedure.
The portion of the separated beam corresponding to Sz =(+h bar/2) is then passed through a second identical magnet whose z axis is rotated by an angle theta with respect to the first magnet. (a) Ho
What is the absolute pressure at the bottom of the mercury column, when the fundamental frequency of the shortened, air-filled tube is equal to the third harmonic of the original tube?
A) What is the maximum height of the balloon relative to the ground? B) At what time does the balloon impact? C) Where does the balloon hit the wall relative to the ground?
The slower planet's orbital period is 6.86 years. (a) What is the mass of the star? (b) What is the orbital period of the faster planet, in years?
When the voltage is adusted so that the plates are in the same position, they would be in when the 50 mg mass is placed on the top plate, what is the value of the electric force between the plates?
If you keep your living room at 20 degrees C, what is the frequency of the lowest note that you will be able to obtain from your organ?
A 3.0-kg object hangs at one end of a rope that is attached to a support on a railroad car. When the car accelerates to the right, therope makes an angle of 4.0 degrees with the vertical. Find the a
It takes you 1.60 x 10-5 J to move a charge between two charged parallel plates with a potential difference of 11.0 V between them. (a). Find the magnitude of the charge
The driver of a 3000 lb car, coasting down a hill, sees a red light at the bottom, and must stop. His speed when he applies the brakes is 60mph, and he is 100feet (vertically) above the bottom of t
A rotating fan completes 1200 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.19 m. (a) Through what distance does the point move in one revolution?