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A concrete column of cross-sectional 2.5 m2 supports a mass of 28,000 kg. a) What is the stress within the column? b) What is the strain? (E=2x10^6)
In a mass spectrometer, a singly charged ion having a particular velocity is selected by using a magnetic field of 0.1 T perpendicular to an electric field of 8.00 102 V/m. What is the mass of the ion
A 5 kilogram cart is moving horizontally at 6 meter per second. in order to change its speed to 10 ms, obtain the net work done on the cart
What is the electric charge of the baryon with the quark composition u dd? (Use the following as necessary: e for the charge of an electron
A sailing vessel is 64 m long, and its hull has a wetted surface area of 560 m2. Its top speed is about 9 m/s. Assume that the equivalent sand-grain roughness.
A person with a mass of 52 kg runs with a speed of 6.8 m/s jumps onto the outer rim of a merry-go-round. What is the mass (in kg) of the merry-go-round
A runner travels 2 km north, then 1 km west, then 1 km north, then 3 km east. The run took 45 minutes. What was the total path length of the run
a 1.90 cm x 1.90 cm parallel-plate capacitor has a 2.40mm spacing. the electric field strength inside the capacitor is
A mole moves in its tunnel and its velocity is explained with the equation.v(t) = 0,15t – 0,032t 2, for the time from t=0 to t=6. How far does the mole go before it returns? What is the maximum speed of the mole and when does she obtain this speed..
Compute the ground state energy and wavefunction
If, when she lands on the trampoline, she stretches the trampoline down d = 0.75 m, what is the spring constant k in N/m of the trampoline?
Two very small spheres are initially neutral and separated by a distance of 0.55 m. find Is the force attractive or repulsive
A velodrome track is banked so that a bicycle traveling at 69.9 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 54.0 m
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