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Q. In a double-slit interference experiment, the wavelength is 569 nm, the slit separation is 0.1 mm, and the screen is 40 cm away from the slits. What is the linear distance between adjacent maxima on the screen?
Q. Describe Erikson, Levinson, cognitive developmental theorists, Kohlberg, behavioral theorists, Bronfenbrenner, Holland, the eclectic theory, and the composite theory.
A 2 kg rock is released from rest at a height of 29 m. neglect air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights: 20m; 15m; 5m; 9m.
assume a spherical planet P has a uniform density of 4.72*10^3 kg/m^3 and a radius R=3604 km. For a parcel that weighs 64 N on the surface of the (spherical) earth.
In outer space, far from other objects, block 1 of mass 30 kg is at position m, and block 2 of mass 1350 kg is at position m. What is the (vector) gravitational force acting on block 2 because of block 1? It helps to make a sketch of the situatio..
A ship sets out to sail to a point 148 km due north. An unexpected storm blows the ship to a point 148 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive angl..
An engineer is designing a pacemaker for cardiac patients. For the 20 year old woman, how many times must device have to beat for her to have a normal life expectancy.
A 1035 kg car carrying four 78 kg people travels over a rough "washboard" dirt road with corrugations 5.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 16 km/h. The car now ..
Suppose that the mass of the dishwater is large as much as necessary so that its temperature does not change appreciably.
A proton travels with the speed of 8.34×105 m/s at an angle of 32.3° with the direction of a magnetic field. The field exerts a force of 3.00×10-17 N on the proton. What is the strength of the field.
Compute the magnitude of the average acceleration
A hiker's trip consists of three segments. Path A is 9km long heading 60.0° north of east. Path B is 6.0km long in a direction due east. Path C is 5.0 km long heading 315° counter clockwise from east.
Fred and Barney are two electric charges that are initially held 1 meter apart and experience an electric repulsion of 10 pounds of force. What would be the force of repulsion between them be if the two were moved closer together so that they were..
A gas expands while 502 J of energy is added to it as heat. The expanding gas does 422 J of work on its surroundings.
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