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A length of 0.547 m in order to produce a magnetic field of magnitude 0.0002 T at the center of the solenoid? The permeability of free space is 4π × 10-7 T · m/A .
A plastic sphere floats in water with 30% of its volume submerged. This same sphere floats in glycerin with 23.9% of its volume submerged.
Suppose that a mass m attached to a spring with constant k executes simple harmonic motion. A general solution may be given as x(t) = A cos (ωt + φ). An alternative general solution is x(t
A woman walks 302. m in the direction 41.0° east of north, then 190 m directly east. Find her resultant vector displacement from the starting point
A 350 piano slides 3.6 down a 29 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure ). The effective coefficient of kinetic friction is
How do your calculations support the importance of stepping voltages up with transformers for long-distance transmission?
When different source of light is used, it is found that the critical retarding potential is changed to 1.1 V. Find the work function of the emitting surface and the wavelength of the second source.
The principal disadvantage of sending electric power across country on very low voltage transmission lines would be
A flat (unbanked) curve on a highway has a radius of 300.0 m. A car rounds the curve at a speed of 44.0 m/s. What is the minimum coefficient of friction that will prevent sliding?
A dog walks 6 m to his food bowl and then turns right and walks 8 meters to his doghouse. If the dog's final position is due east of his initial position, what is the displacement of the dog?
Two points are located on a rigid wheel that is rotating with an increasing velocity about fixed axis.the axis is perpendicular to the wheel at its center.point 1 is located on the rim ,and point 2
The entrance of the straw is located at the bottom of the 15cm deep shake. What is the absolute pressure at the entrance of the straw?
After the bullet has come to rest within the block, the block, with the bullet in it, is traveling at speed. What is the speed of the block/bullet system after the collision?
The potential difference across a coil is 3.08 V at an instant when the current is 305 mA, changing at a rate of 285 mA/s. At a later instant, the potential difference is 1.51 V, while the current
A 12.5 g bullet is fired into and embeds itself in a 2.47 kg block attached to a spring with a spring constant of 21.2 N/m and whose mass is negligible. How far is the spring compressed if the bull
To speed up the process of separation, a centrifuge spins blood sample tubes at high speeds in uniform circular motion. How does the spinning of the centrifuge speed up the separation process?
A coil with inductance 7.0 H and resistance 26.0 Ω is suddenly connected across an ideal 110.0 V battery by the closing of a switch. a) What is the equilibrium current?
Constant speed until it is near the second station, when it brakes at 2.0 m/s2 in order to stop at the station. How long did this trip take?
A soccer ball is kicked with a speed of 9.55 at an angle of 25.0 above the horizontal. If the ball lands at the same level from which it was kicked, how long was it in the air?
A staging that weighs Wstaging supports a painter weighing 660 N. The reading on the left scale is 800 N and the reading on the right scale is 370 N. 800 N 370 N
A building with a weight of 5.000e+7 N is built on a concrete foundation with an area of 1300 m2 and an (uncompressed) height of 2.82 m. By what vertical distance does the foundation compress?
Consider an element of air in the standard atmosphere at a standard altitude of 1000 m. Assume that you somehow raise this element of air isentropically to a standard altitude of 2000 m, where the e
A 116-cm-long, 5.00 string oscillates in its n = 2 mode with a frequency of 170Hz and a maximum amplitude of 4.50mm. What is the wavelength in the string?
What are the (a) magnitude and (b) direction (up or down) of the force on the forearm from the triceps muscle and the (c) magnitude and (d) direction (up or down) of the force on the forearm from th
A 2,800-kg satellite is in a circular orbit around a planet. The satellite travels with a constant speed of 6,270 m/s. The radius of the circular orbit is 8.72 × 106 m. What is the accelerati