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A 30.0-kg object has a drag force with a magnitude proportional to the square of its speed. The object falls with an acceleration 4.00 m/s2 downward when it is falling downward at 70.0 m/s. What is its terminal velocity?
A baseball (m = 149 g) approaches a bat horizontally at a speed of 42.6 m/s (95 mi/h) and is hit straight back at a speed of 47.1 m/s (105 mi/h). compute the average force exerted on the ball by the bat
A bicycle rides by in front of you moving right to left. What is the torque applied to the wheel
Light of wavelength 565 nm incident on a pair of slits produces an interference pattern on a distant screen in which the separation between adjacent bright fringes at the center of the pattern is 0.569 cm. What is the wavelength of the second sourc..
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth .45E-4 T at a distance of 27 cm
A converging lens with a focal length of 12.4cm forms a virtual image 8.50mm tall, 17.6cm to the right of the lens. Determine the position of the object
Explain in your own words the meaning of acute and chronic exposure, deterministic and stochastic effects from radiation. Give examples
A highway curves to the left with radius of curvature of 44 m and is banked at 29degrees so that cars can take this curve at higher speeds. Consider a car of mass 1387 kg whose tires have a static friction coefficient 0.68 against the pavement.
A 2.00 kg. frictionless block is attached to an ideal spring with force constant 300 n/m. At t=0 the block has velocity -4.0 m/s, what is the position of the block when its speed is 2.5 m/s
a 300-kg load is hung on a wire of length 5.00 m cross-sectional area 0.200 times 10-4 m2 and youngs modulus 8.00 times
Waly Whacko claims to have invented a heat engine that will revolutionize industry. What error did he made in his choice of temperature scale
A spherical metallic Christmas tree ornament has a diameter of 6.41 cm. If Saint Nicholas is by the fireplace, 1.37 m away, where will he see his reflection in the ornament
A wire 2.0mm in diameter and 4cmlong is connected to a 12V battery. If the resistivity of the wire is 3.5 x 10^-5 ohm-m; calculate the resistance of wire and its current
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