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A fully charged 7.8 uF capacitor is connected in series with a 1.8×105 ohm resistor. What percentage of the original charge is left on the capacitor after 1.7 s of discharging? Express your answer using two significant figures.
100g of ice at -10C is placed into 100g of warm water in an insulated container. Calculate the mass of the ice that remains when equilibrium is achieved
A car travelling at 37 {rm m/s} runs out of gas while travelling up a 7.0{rm ^ {circ}} slope. How far would it coast before starting to roll back down.
Along a straight road through town, there are three speed-limit signs. They occur in the following order: 54 , 35 , and 18 mi/h, with the 35 -mi/h sign located midway between the other two.
A camera is supplied with two interchangeable lenses, whose focal lengths are 41.0 and 150.0 mm. What is the height (including sign) of her image on the image sensor
A playground swing at its highest point during a child's play is 3.0 meters above the ground, Determine the torque exerted by gravity on a child on the swing when the swing is at the highest point of its motion
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 2.90 m, are floating at rest on Space Station Freedom between two metal bulkheads.
A car of mass M= 900-kg travelling at 45.0 kmh enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between road and car's tires.
A ball with a mass of 0.75 kg is thrown vertically into the air with an initial velocity of 10 m/s. establish the velocity of the ball when it hits the ground if it was initially released 2.0 m above the ground.
The parallel metal plate of a capacitor is seperated by a distance of 0.5cm and is connected to a 90v battery. Find an electric field between them and the surface charge density.
A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, calculate (a) the radius of the orbit, (b) the linear momentum of the electron.
How much does the spring stretch. A 1200 {rm kg} car traveling at a speed of 15 {rm m/s} skids to a halt on wet concrete where f_k = 0.20. how long are the skid marks.
A solid steel rod of length 120-cm and mass 450 grams, is rotated about its center with an angular acceleration 23 rad/s2. What is the moment of inertia of the rod, What is the net torque acting on the rod
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