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A 21cm long solenoid consists of 5400 turns of wire wound uniformly. What current is needed to produce an 8.0mT magnetic field inside the solenoid? Express your answer to two significant figures and include the appropriate units.
An ultralight plane and pilot have a total mass of 168 kg, what is the net force acting on the plane and pilot
Photons with wavelength 670 nm are capable of producing photoelectrons from a particular substance. Determine the substance's work function and cutoff wavelength
A specimen of oil having an initial volume of 620 cm^3 is subjected to a pressure increase of 3.6 MPa, What is the compressibility of the material
A 7430-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. Find the work done by the gravitational force
The inner and outer surfaces of a 5m x 6m brick wall of thickness 30 cm and thermal conductivity 0.69 W/(m x degree C) are maintained at temperatures of 20C and 5C. Determine the rate of heat transfer through the wall in W.
A beam of light is traveling in air and strikes a material. The angles of incidence and refraction are 60.3° and 47.5°, respectively. Obtain the speed of light in the material
a little boy is flying a kite. the string of the kite makes an angle of 30 deg with the ground. if the height of the
As the refrigerant passes through the compressor, heat transfer to the surrounding occurs at a rate of 0.32 kJ/s. Determine at steady state the power input to the compressor, in kW.
A beam of nuclei is used for cancer therapy. Eachnucleus has an energy of 130 MeV, and the relative biologicaleffectiveness (RBE) of this type of radiation is 16. How many nuclei are in the beam
A curve of radius 50 m is banked for the design speed of 100 km/h. If the coefficient of static friction is 0.60 (wet pavement), at what range of speeds can a car safely create the curve.
Four point charges, each with Q = 8.8 µC, are arranged at the corners of a square of edge length 1.4 m. What is the electric potential at the center of the square
an astronaut on the surface of the moon fires a cannon to launch an experiment package, which leaves the barrel moving horizontally. what time interval does this trip around the moon require
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