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A ladder of weight 500 N and length 10.0 m is placed against a smooth vertical wall. A person weighing 750 N stands on the ladder 3.0 m from the bottom as measured along the ladder. The foot of the ladder is 8.0 m from the bottom of the wall. A) Calculate the force exerted by the wall B) the normal force exerted by the floor on the ladder
A small circular hole 6.00 mmdiameter is cut in the side of a large water tank, 19.0 m below the water level in the tank. Find the volume discharged per unit time
Two ideal inductors (0.124 H, 0.433 H) are connected in series to an AC voltage source with amplitude 5.17 V and frequency 113 Hz. What is the peak current that flows in the circuit
A solenoid 8.7 cm in radius and 99 m in length has 15200 uniformly spaced turns and carries a current of 3.9 A. What is the magnetic flux through this circular surface
In the domain of elementary particles, a natural unit of mass is the mass of a nucleon, that is, a proton or a neutron, the basic massive building blocks of ordinary matter. Given the nucleon mass as 1.67 · 10-27 kg and the gravitational consta..
A person weighs 836 N in air and has a body fat percentage of 20.5%. What is the overall density of this person's body
a simple pendulum is made from a 0.617 m-long string and a small ball attached to its free end. the ball is pulled to
A series L-R-C circuit consists of a 262 Ω resistor, a 23.9 mH inductor, a 10.28 µF capacitor, and an AC source of amplitude 26 V and variable frequency. If the voltage source is set to 4.7 times the resonance frequency, the impedance of this circ..
Draw a diagram of the velocity selector. Show the direction of all fields and forces. Clearly derive an expression for the velocity of the charges particle which passes through undeviated.
A 3440-kg spacecraft is in a circular orbit a distance1850 km above the surface of Mars. How much work must thespacecraft engines perform to move the spacecraft to a circularorbit that is 4360 km above the surface?
Your car's 28.5 W headlight and 2.50 kW starter are ordinarily connected in parallel in a 12.0 V system. What power would one headlight and the starter consume
A metal sphere has a charge of +8.8uC. What is the net charge after 2.4 x 1013 electrons have been placed on it
An automobile tire has a volume of 0.0185 m3. If the pressure in the tire is 500 kPa and the temperature is 298 K, how many molecules are there inside the tire
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