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A 10 kilogram block is placed on an ideal vertical spring that has been compressed 20 centimeter from its equilibrium length. The spring has a spring constant, k =4500 N/m. When the spring is released:
Obtain the speed of the block as it leaves the spring?
Obtain the maximum height the block achieves above the end of the spring?
A person with perfect pitch sits on a bus bench listening to the 451 Hz horn of an approaching car. If the person detects a frequency of 486 Hz, how fast is the car moving
A 10 ohm resistor is in series with a 1 and 5 ohm resistor parallel combination. Calculate the total current running through the wire
A child slides across a floor in a pair of rubber-soled shoes. The frictional force acting on each foot is 20.0 N. The footprint area of each shoe sole is 16.0 cm2, and the thickness of each sole is 4.30 mm. Find the horizontal distance by which the ..
a spherical ballon with radius 1.0m consists of an aluminum coated mylar. how many electrons must be deposited on the
In one day, a 75 kg mountain climber ascends from the 1400 m level on a vertical cliff to the top at 2380 m. find her change in gravitational potential energy on the second day
A line in the x-ray spectrum of gold has a wavelength of 18.5 pm(=18.5x10^-12 m) The emitted x-ray photons corresponds to a transition of the gold atom between two stationary states, the upper one of which has the energy -13.7 keV. What is the ene..
An inductor with an inductance of 2.70H and a resistance of 7.20(phi) is connected to the terminals of a battery with an emf of 5.80V, Find the final steady-state current
A 95 long train begins uniform acceleration from rest. The front of the train has a speed of 25 while it passes a railway worker who is standing 170 from where the front of train started. What will be the speed of the last car as it passes the wor..
There are three different methods to induce an emf in a coil of wire: 1) change the magnetic field that is applied in the region inside the coil; 2) change the area of the coil (e.g., by deforming it); and 3) ___________________ (you complete the sta..
Consider a 0.11 cm focal length microscope objective that is 0.29 cm from the object being viewed. What magnification is being produced by the objective
A heat engine operates as a reversible Carnot cycle transfers 6.0 kW of heat from a reservoir at 1000 K, Calculate the power output of this engine
Nearly all battery powered devices with multiple batteries have their batteries connected in series. Could there be any advantage to connecting batteries in parallel? Describe your response in 100 words or less.
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