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an object at point 0 is travelling along at a leisurely 30m/s. all of a sudden it accelerates at 2m/s^2 for 2 minutes. how far did it travel from its starting point?
You want to store 10^-5 C of charge on a capacitor, but you only have a 100 V voltage source with which to charge it. What must be the value of the capacitance
A pipe carrying 20°C water has a diameter of 3.5 cm. Estimate the maximum flow speed if the flow must be streamline
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -17.30 eV. What is the energy of the first photon emitted
The driver of a 1250 kg car, initially traveling at 10.1 m/s, applies the brakes, bringing the car to rest in a distance of 25.0 m
For a Nd:YAG laser there are four pump levels located at 1.00 eV, 1.24 eV, 2.40 eV, and 2.54 eV. What is shortest possible pump wavelength (in nanometers) that could be used to populate any of the excited energy levels
a proton is rotating in a 7.19 * 10^ -11 m radius circle with a frequency of 5 * 10 ^15 Hz, How large is the resultant magnetic field
In a blade with an airfoil profile the total aerodynamic force acting on the blade when wind speed is 25 ft /sec is 50 lb, find the torque generated in the shaft
The neutral hydrogen atom in its normal state behaves in some respects like an electric charge distribution which consists of a point charge of magnitude +e surrounded by a distribution of negative charge
The tank is shelling at a target that is 4km away and 60m above ground. If the shell is being fired at 30degrees above the horizontal, determine the release speed of the shell
A simple pendulum is made of a small blob of mass m = 9.500 kg attached to the end of an inextensible wire. What is the magnitude of the tension in the wire
You hold a spherical salad bowl 90 in front of your face with the bottom of the bowl facing you. The salad bowl is made of polished metal with the 30 radius of curvature. Where is the image of your 2.0 tall noses located.
the girl(mass 40kg) is pulling the sled(mass 10Kg) on the frictionless ice. what is the acceleration of the girl
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