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A long solenoid with 9.07 turns/cm and a radius of 7.04 cm carriesa current of 20.0 mA. A current of 4.56 A exists in a straightconductor located along the central axis of the solenoid.
(a) At what radial distancefrom the axis in centimeters will the direction of the resultingmagnetic field be at 58.1° to the axialdirection?
(b) What is the magnitude of the magnetic field there?
A rectangular box with open top floats on a surface of aswimming pool. During a rainstorm, box fills with waterpartially and floats 5 cm lower in the water. The box has sides oflength 10 cm and 20 cm, and 10 cm deep. Density of 250kg m^-3.
A force with components Fx(t) = (20.0 N/s2) t2 and Fy(t) = (30.0 N/s)t – 10.0 N is applied toan object of mass 2.00 kg. If the object was initially atrest, what is its velocity after the force has acted for 0.500 seconds?
A swimmer heading directly across a river 200 m wide reaches theopposite bank in 6 min 40 s. She is swept downstream 480 m. What is the speed of the current
What is the acceleration of gravity 14,200km from the center of earth. How long will it take a satellite at this distance to circle earth?
The driver of a motorboat that can move at 10 m/s in still waterwishes to travel directly across a narrow strait in which thecurrent flows at 5.0 m/s
An airplane with a speed of 120 km/h is headed 30.0º east of north in a wind blowing due west at 30.0º km/h. What is the speed of the plane relative to the ground
What is it that makes the study of the structure of our owngalaxy more difficult than that of much more distant spiralgalaxies? The no-hair theorem states that black holes
A 3.0Kg mass is dropped from the edge of 50m tall builiding with an initial speed of zero. How much work is done on the mass by air resistance
A mass undergoes SHM with amplitude of 4 cm. The energy is 8.0 J atthis time. What is the energy of the system now
A 0.58 kg block is attached to a spring with a force constantof 116 n/m is free to move on a frictionless, horizontal surface. At that instant what is the force acting on the block
A 150- crate, starting from rest, is pulled across a floor with a constant horizontal force of 360 . For the first 11 the floor is frictionless, and for the next 11 the coefficient of friction is 0.31. Illustrate what is the final speed of the c..
You want to double the resonance angular frequency of a series R-L-C circuit by changing only the pertinent circuit elements all by the same factor
If a camera with a 55 mm lens is to resolve two objects that are 5.0 mm from each other and both objects are 3.5 m from the camera lens, What is the resolving power
A race car travels northward on a straight, level track at a constant speed travels 0.764 km in 17.0 s. The return trip over the same track is made in 22.0 s. What is the average velocity for the total trip
A golfer hits a tee shot off of a cliff that is 18.2 m high. If it lands in the fairway a horizontal distance of 270 m from the tee and is in the air for 5.3 seconds, What was the initial velocity of the golf ball
A telescope consists of a mirror with radius of curvature 6.5 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 114, what focal length eyepiece should he use?
The transformer in the DC supply for my laptop has an output voltage of 20 volts when plugged into a 110 volt outlet. What is the input current of the power transformer
A 11 kg satellite has a circular orbit with a period of 3.3 h and a radius of 3.6 × 106 m around a planet of unknown mass. what is the radius of the planet
A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. At a distance of 6.50 km from the source, What is the average power radiated by the source
Suppose a 100m diameter stony (p= 3 g/cm^3) meteroid impacts the Earth with a speed of 20km/s. Assume all kinetic energy goes into the creation of an atmospheric blast wave.
A single layer of dielectric lens coating is to be deposited on a lens made of a material with refractive index of 1.78. Determine the thickness and the refractive index of the layer
in a single slit experiment, the distance between two dark fringes of the second order is 10 cm on a screen which is 1.5 m away. find the width of the slit
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