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Solve the following time-distance-velocity problem. Two railroad stations A and B are 700 km apart. Two trains leave station A at the same time - Train 1 at a speed of 70 km/h, bound for station B; and train 2 at a speed of 50 km/h, also bound for station B.
Assume there is a location (somewhere between A and B) at which the first train arrives exactly two hours earlier than the second train. How far is this point from station A?
Consider a resistor (R=1000 kΩ) and a capacitor (C=1mF) connected in series. Find the maximum charge on the capacitor
A 75.0 kg bungee jumper, tied to a 39.0 m longcord, leaps off a bridge whose deck is 69.0 m above thewater. He falls to 7.0 m above the water before the bungeecord pulls him back up. What is the magnitude of the impulseexerted on the bungee jumper..
The uncertainty in the position of an electron along an x axis is given as 56 pm, which is about equal to the radius of a hydrogen atom. What is the least uncertainty in any simultaneous measurement of the momentum component px of this electron?
A meter stick is supported on a fulcrum at the 35 cm mark. A 0.70 kg object is hung from the zero end of the meter stick, What is the mass of the meter stick
A 74.6-kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 11.8 m, and falls a total of 34.0 m. Calculate the maximum acceleration experienced by the jumper
A piece of iron isheated with a torch to a temperature of 6000 K. How much moreenergy does it emit as blackbody radiation at 6000K than it does atroom temperature, 300 K?
Two cylindrical glass beads each of mass m = 32 mg are set on their flat ends on a horizontal insulating surface separated by a distance d = 3 cm. The coefficient of static friction between the beads and the surface is μs = 0.3. The beads are the..
an object is pulled west along a horizontal frictionless surface with a steady horizontal force of 12.0 n. if the
How far above the base of the cliff does this happen. What is an acceleration at the point where the block begins to slip.
An air core solenoid contains1060 m^-1 turns of wire per meter and has a cross-sectional area of 0.127 m^2. Find the magnitude of the induced emf in the pickup coil
When 16.8 J was added as heat to a particular ideal gas, the volume of the gas changed from 42 cm3 to 87 cm3 while the pressure remained constant at 1.3 atm. (a) By how much did the internal energy of the gas change
A certain electric extension cord has a resistance of 3.28 Ω. Suppose it is replaced by an extensioncord made of the same material. The replacement cord isfive times the diameter of the originaland five times as long. What is the resistance of the ne..
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