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A solid wood door 0.60 m wide is hung in a metal door way at 0.0°C with a clearance of 2.2 mm on the side. If the linear coefficient of expansion of the wood is 6.0*10-5(C°)-1, at what temperature °C would the door begin to touch the side of the doorway? Suppose that the metal doorway does not expand significantly.
Kelli weighs 417 N, and she is sitting on a playground swing that hangs 0.44 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.00 m above the ground. Imagine that air resistance is negligible.
A wire carries a current of 0.651 A. This wire makes an angle of 56.6° with respect to a magnetic field of magnitude 4.64E-5 T. What is the length of the wire
A Carnot engine has an efficiency of 0.861, and the temperature of its cold reservoir is 381 K. Determine the temperature of its hot reservoir
Two 120kg lead spheres are suspended from 170m -long massless cables. By what distance do the two spheres move closer
in 2010 the mens record for the 26.22 miles boston marathon was 2 hours 5 minutes and 52 seconds. what was the average
question1a rock is thrown from edge of the top of a 100-ft tall building at some unknown angle above the horizontal.
Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 108 m. Find the time it took for his voice to reach earth via radio waves.
A spherical object with a radius of 40.0 cm has a net charge of 37.7uC distributed uniformly throughout its volume, Using Gauss's Law, calculate the electric field 71.5 cm from the center of the sphere
A spring-loaded toy gun is used to shoot a ball of mass straight up in the air, Find v_m the muzzle velocity of the ball
An R = 46.1 ? resistor is connected to a C = 43.0 ?F capacitor and to a ?VRMS = 102 V, and f = 108 Hz voltage source. Calculate the power factor when the capacitor is replaced with an L = 0.358 H inductor
An investigation is performed using a apparatus. Electrons are accelerated from rest from the cathode by an electric potential difference. The cathode and anode are 2.00 x 10 ^-2 cm apart. The electrons reach a speed of 2.10 x 10^7 m/s as they pas..
Charge A and charge B are 2.5 m apart. Charge A is 1.4C and charge B is 2.5C. Charge C, which is 2.0 C, is situated between them and force on charge C is zero. How far from charge A is Charge C.
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