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A uniform, rectangular door 2.2 m high and 2.4 m wide having a weight of 260 nt is supported by two hinges. One hinge is .30 m from the top corner and the other is .30 m from the bottom corner. Each hinge supports half the total weight of the door.
Find the magnitude of the total force exerted on the door by the lower hinge.
A mass m of a metal with heat capacity cm at initial temperature TM is added to the volume V of a liquid with density p, find the final temperature of the system
An infinitely long line of charge has a linear charge density of 5.50×10-12 C/m. A proton is at distance 17.5 cm from the line and is moving directly toward line with speed 2900 m/s.
If the magnitude of an electric field in air is as great as 3.00×106 N/C, the air becomes ionized and begins to conduct electricity. This phenomenon is called dielectric breakdown. A charge of 13.0 C is to be placed on a conducting sphere. What is th..
A 7.75 H inductor with negligible resistance is placed in series with a 15.7 V battery, a 3.00 ? resistor, and a switch. The switch is closed at time t = 0 seconds. Calculate the current as time approaches infinity
calculate the terminal velocity of a 1.0 cm bug. assume that the density of the bug is 1.0 gcm3.and the bug is
A generator has an armature with 500 loops, which experience a change in flux of 8.00 mWb during each rotation. Compute the back emf it develops when run as a motor at 1500 rpm
A uniform solid sphere has a moment of inertia I about an axis tangent to its surface. The moment of inertia of this sphere about an axis through its
A projectile is launched from a 300 m high cliff at an angle of 30? with an initial velocity of 150 m/s. (g=9.8m/s2). determine the Magnitude of the velocity on impact
A muon and its antiparticle annihilate each other, producing two γ-ray photons. The kinetic energies of the particles are negligible. Find the magnitude of each photon's momentum
three liquids are at temperatures of 10 degrees c 20 degree c and 30 degrees c respectively. equal masses of the first
What is the magnitude
An air conditioner draws 12 A at 220 V ac. The connecting cord is copper wire with a diameter of 1.450 mm. how much power does this air conditioner draw
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