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A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, the horizontal total force on the driver has magnitude118N. What is the total horizontal forc
A space station, in the form of a wheel 121 m in diameter, rotates to provide an "artificial gravity" of 2.70m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of the
A 10 kg block of ice has a temperature of -8°C. The pressure is one atmosphere. The block absorbs 4.20 106 J of heat. What is the final temperature of the liquid water?
Light shines through a single slit whose width is 7.40 10-4 m. A diffraction pattern is formed on a flat screen located 3.2 m away. The distance between the middle of the central bright fringe and t
An aluminum baseball bat has a length of 0.81 m at a temperature of 20°C. When the temperature of the bat is raised, the bat lengthens by 0.00016 m. Determine the final temperature of the bat.
A series RLC circuit contains a 125.0 O resistor, a 35.0 µF capacitor and a 70.0 mH inductor. The circuit is attached to a 60 Hz oscillator with a peak voltage of 55.0 V. What is the peak vo
A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 665 nm. Determine the angle that locates the first dark fringe when the width of the slit is each
A transparent oil with index of refraction 1.29 spills on the surface of water (index of refraction 1.33). Determine the thickness of the oil slick.
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 2.50 m3 to Vf = 3.20 m3, at a constant pressure of 2.11 atm. Find the final temperature of the gas K.
A proton beam in an accelerator carries a current of 115 µA. If the beam is incident on a target, how many protons strike the target in a period of 26.0 s?
A heat engine operates as a reversible Carnot cycle transfers 6.0 kW of heat from a reservoir at 1000 K and then rejects it to the atmosphere at 300 K. Calculate the thermal efficiency of the engi
As a high-power laser engineer you need to focus a 1.17-mm diameter laser beam to a10.3-µm diameter spot20.6cm behind the lens. What focal length lens would you use?
Two converging lenses with focal lengths 2cm and 12cm, respectively, are placed 30 cm apart. An object of height= 5 cm is placed15cm to the left of the 2-cm lens. What will be the position and heigh
A model train moves along a horizontal circular track with a radius of 0.5 m. Starting from rest, the train accelerates at 0.2 m/s2. What is the angular acceleration (in rad/s2) of the train?
The top of the hill can be approximated by an arc length of a circle with a radius of 370 m. What is the weight (in N) of the car at the top of the hill?
A 5 cm by 5 cm square loop of wire is rotating at 30 rpm in a uniform magnetic field of strength 3.0T. The direction of the field is perpendicular to the axis of rotation of the loop. What is the em
Estimate the electrical energy stored in the atmosphere, if the earth's electric field extends upward for 1700 m. and has an average magnitude of 170 V./m.
If the transformer wee connected backwards, secondary coil to power source, what would be the output voltage of the device?
The sound level measured 5.2 m away from a jet engine is 140 dB. (A) What is the intensity of the sound at 5.2 m?
A cyclotron designed to accelerate protons has a magnetic field of magnitude 0.260T over a region of radius 2.40m. (a) What is the cyclotron frequency?
A 8.0 uf (uf means microfarad) capacitor and a 6.0 uf capacitor are connected in series, and the combination is connected in parallel with a 4.0 uf capacitor. What is the equivalent capacitance (i
Question: An electron is accelerated through 2.45103V from rest and then enters a uniform 2.80-T magnetic field. (a) What is the maximum magnitude of the magnetic force this particle can experience
A proton travels with a speed of4.90106m/s at an angle of 65°with the direction of a magnetic field of magnitude 0.240T in the positivex-direction. What is the magnitude of the magnetic force on
You have 15 m of wire, a constant magnetic field of 0.35 T, and a device that can rotate a coil at a fixed frequency of 300 Hz. A circular coil of what radius will produce an AC emf of maximum vo
Citizens band (CB) radio uses radio waves with frequencies near 27 MHz. What are the wavelengths of these waves, and how long should a quarter-wavelength CB antenna be?