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Q. A 302g ball is tied to a string. It is pulled to an angle of 6.00 degrees and released to swing as a pendulum. A student with a stopwatch finds that 17 oscillations take 12.0s. How long is the string?
Q. A new experiment is created with the screen at a distance of 2 m from the slits (with spacing 0.08 mm). What is the distance between the second order bright fringe of light with l = 690 nm and the third order bright fringe of light with l = 404 nm? (Give the absolute value of the smallest possible distance between these two fringes: the distance between bright fringes on the same side of the central bright fringe.)
The coefficient of volume expansion of coffee is the same as that of water. How much coffee (in cubic meters) has spilled out of the beaker.
Is the collision completely elastic
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 2.8 . Two of the particles have a negative charge: = -6.7 and = -13.4 . The remaining particle has a positive charge, = 8.0 . What is ..
What is the potential difference measured by voltmeter
A 60.0 kg pole vaulter running at 12.0 m/s vaults over the bar. Assume that the vaulter's horizontal component of velocity over the bar is 1.0 m/s and disregarding air resistance, how high was the jump?
How long does it take an automobile travelling 56.50 km/h to become even with a car that is travelling in another lane at 36.50 km/h if the cars' front bumpers are initially 148m apart.
The link between portfolio level objectives with portfolio success factors that are achieved through individual projects and points out how contributes to strategic fit, use of synergies, etc.
Keeping a constant speed of 0.6 m/s, a marble of mass 18 g rolls back & forth across a shoebox that is 14 cm high & 2 mm thick. Estimate the probability of its escaping through the wall of the box by quantum tunnelling.
An inductor used in a dc power supply has an inductance of 13.0 H and a resistance of 230 Omega. It carries a current of 0.210 A. What is the energy stored in the magnetic field? At what rate is thermal energy developed in the inductor? Does your rep..
A vessel whose walls are thermally insulated contains 2.5 {rm kg} of water and 0.6 {rm kg} of ice, all at a temperature of 0.0 ^circ {rm{C}}. The outlet of a tube leading from a boiler in which water is boiling at atmospheric pressure is inserted ..
A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.75 km/hr. The child is 0.560 km from shore and 0.750 km upstream of a boat landing when a rescue boat sets out. If the boat proceeds at its maximu..
A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat.
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