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A solenoid had an inductance of L and carries a current of 15 A , if the current goes from 15 A to 0 A in time fo 75 ms and the EMF induced in the solenoid was 620 V. (a) What is the value of the i
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 2.40 x 10-28 kg and that of the heavier fragment is 1.67 x 10-27 kg. If the lig
What fraction of the power radiated by the sun is intercepted by the planet Uranus? The radius of Mercury is 2.56 x 107m, and its mean distance from the sun is 2.87 x 1012m. Assume that the sun radiat
A beam of polarized light with an average intensity of14.8W/m2is sent through a polarizer. The transmission axis makes an angle of32°with respect to the direction of polarization. Determine the
A parallel-plate capacitor has an area of 5.50 cm2, and the plates are separated by 1.06 mm with air between them. It stores a charge of 314 pC. What is the potential difference across the plates of
(a) What is the angular frequency of the motion? (b) Using the position of the bob at its lowest point as the reference level, determine the total mechanical energy of the pendulum as it swings back
A 0.596 -kg block is then attached to the free end of the spring. When released from rest, the block drops 0.120 m before momentarily coming to rest, after which it moves back upward. (a) What is th
A tow truck is pulling a car out of a ditch by means of a steel cable (Y = 2.0 x 1011 N/m2) that is 8.87 m long and has a radius of 0.462 cm. When the car just begins to move, the tension in the cab
The pressure increases by 1.0 x 104 N/m2 for every meter of depth beneath the surface of the ocean. At what depth does the volume of a Pyrex (bulk modulus 2.6 x 1010 N/m2) glass cube, 1.2 x 10-2 m on
A sample of an unknown material appears to weigh 280 N in air and 175 N when immersed in alcohol of specific gravity 0.700. (a) What is the volume of the material?
An electron that has a velocity with x component 2.9 x 106 m/s and y component 3.7 x 106 m/s moves through a uniform magnetic field with x component 0.037 T and y component -0.20 T. (a) Find the magni
Monatomic molecules adsorbed on a surface are free to move on this surface and can be treated as a classical ideal two dimensional gas .At absolute temperature T. What is the heat capacity per mole
For how long should Matt expose a second plate located 5.8m from the source if the second plate is to have equal exposure (that is, the same energy collected)?
A certain LCD projector contains a single thin lens. An object23.5mm high is to be projected so that its image fills a screen 1.87m high. The object-to-screen distance is3.05m. (a) Determine the foc
Three blocks are attached to each other via ropes and pulleys as shown. Assume the pulleys are frictionless and the string is massless. what is the acceleration of the middle block? What are the ten
A 70 kg object is being pulled up a slope of 35 degrees with the horizontal so that the rope is parallel to the slope. If the object is accelerating up the ramp at 0.6 m/s2 and the coefficient of ki
A person with a mass of 50 kg is holding on to a rope of 15 kg which is attached to the ceiling. Note that the person is in midair. Draw a free body diagram of the person and the rope. Clearly draw
You have book A (6 kg) which sits on top of book B (15 kg) which sits on top of a table (30 kg). a. Draw a free body diagram of each book and the table. Clearly label each force that you drew on each
A 12 kg block is moving horizontally across a frictionless surface with a constant velocity of 25 m/s. It then hits a rough surface with a coefficient of friction of 0.3. a. What is the acceleration
A pen contains a spring with a spring constant of 228 N/m. When the tip of the pen is in its retracted position, the spring is compressed 5.90 mm from its unstrained length.
A wire along the z-axis carries a current of 6.2 A in the +z direction. Find the magnitude and direction of the force exerted on a 6.2-cm long length of the wire by a uniform magnetic field with mag
A resistor is known to obey Ohms Law. When there is a current of 1.72 A in the resistor, it has a voltage drop across its terminals of 7.35V. If a voltage of 12V is applied across the ressistor, wha
A magnetic field is oriented at an angle of 31° to the normal of a rectangular area 5.5 cm by 7.2 cm. If the magnetic flux through this surface has a magnitude of 4.5 x 10-5 T · m2, what
The expected number of background counts, B = 1080, during the allotted time is accurately known. The acceptable risk for making a type-I error is 5% and that for a type-II error, 1%. a) What is th
The magnetic field due to a current pulse in a single long, straight axon (nerve fiber) is found to be 1.2 x 10^-10 T at a distance of 1.3mm = 0.0013m from the axon. How large is the current in the