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A person moves 25.0 m along 30 degrees north of east and then he moves 50.0 m due west. How far and in what direction he is from the starting point? Draw a clear diagram.
How much steam saturated at 15 bar can be stored? After the accumulator is fully loaded with the 15 bar steam, how much steam at 5 bar can be withdrawn?
An electron experiences a magnetic force with a magnitude of 4.60×10?15 N when moving at an angle of 60.0 with respect to a magnetic field with a magnitude of 3.40×10-3 T. Find the speed
Find the magnetic field strength at the loop center. Express your answer using two significant figures.
Because the tank is sitting in the sun, the temperature in the tank is 125 oF. Your boss complains that his calculations show that the specific volume of the ammonia gas is 1.20 ft3/lb and that ther
A 0.63 kg ball thrown directly upward with an initial speed of 13.7 m/s reaches a maximum height of 8.1 m. What is the change in the mechanical energy of the ball-Earth system during the ascent of
Each second, 1450 m3 of water passes over a waterfall 130 m high. Three-fourths of the kinetic energy gained by the water in falling is transferred to electrical energy by a hydroelectric generator.
A 0.63 kg ball thrown directly upward with an initial speed of 13.7 m/s reaches a maximum height of 8.1 m. What is the change in the mechanical energy of the ball-Earth system during the ascent of t
A square loop of wire is held in a uniform 0.21T magnetic field directed perpendicular to the plane of the loop. The length of each side of the square is decreasing at a constant rate of 5.0cm/s. W
A 1000-turn coil of wire that is 2.3cm in diameter is in a magnetic field that drops from 0.13T to 0T in 12ms. The axis of the coil is parallel to the field. What is the emf of the coil? (ans in V)
What is the terminal speed at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times.
If you hold a laser pointer 1.1m directly above the edge of the pool, you can illuminate the goggles if the laser beam enters the water 2.5m from the edge. How far are the goggles from the edge of t
A 5.9cm -thick layer of oil (n=1.46) is sandwiched between a 1.5 -thick sheet of glass and a 2.5 cm-thick sheet of polystyrene plastic (n=1.59). How long (in ns ) does it take light incident perpend
If she did not turn around and walked due east, how many hours would it take her to reach her destination with an average velocity of 1.34m/s due west?
Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses in direction, changing from +20.9 km/s to -18.5 km/s. Find (a) its average acceleration (in m/s^2) durin
A beam of electrons is moving through a region of space in which there is an electric field of intensity 3.4 x 104 V/m and a magnetic field of 2.0 x 10-3 T. The electric and magnetic fields are so ori
Estimate the total path length traveled by a deuteron in the cyclotron during the (entire) acceleration process. Assume that the accelerating potential between the dees is 75.2 kV. The deuteron mass
The charging circuit for the flash system of a camera uses a 110*10^-6 F capacitor that is charged from a 240 V power supply. What is the most resistance that can be in series with the capacitor if
A 21 nF capacitor is connected across an AC generator that produces a peak voltage of 4.8 V. a) At what frequency is the peak current 44 mA?
A series RLC circuit consists of a 260 ohms resistor, a 28*10^-6 H inductor, and a 17*10^-6 F capacitor. What is the rms current if the emf is supplied by a standard 120V/60 HZ wall outlet?
What are the electric field strengths to at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1, E
We can model this as a discharge of the capacitor through an internal "leakage resistance." A 0.49 F capacitor charged to 3.2 V will initially discharge with a leakage current of 0.30 mA . a) What
We can model this as a discharge of the capacitor through an internal "leakage resistance." A 0.49 capacitor charged to 3.2 will initially discharge with a leakage current of 0.30 . a) What is the l
What would a voltmeter read if it were connected between the surface and a point 1.00cm from the central axis of the cylinder?
A 5.0 box is on a frictionless 45 slope and is connected via a massless string over a massless, frictionless pulley to a hanging 1.7 weight. What is the tension in the string once the box begins to