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An image of the moon is focused onto a screen using a converging lens of focal length f = 36.8 cm. The diameter of the moon is 3.48×106 m, and its mean distance from the earth is 3.85×108
In a diffraction grating experiment a hydrogen source is obsrved through a diffraction grating with N = 200lines per mm. How many red lines of (lambda)= 656nm from the hydrogen spectrum can be seen
What sre the new genotypes ans allele frequencies for the population? What are the absolute, average, and relative fitnesses for this population as well?
If the charge is moving at a speed of 3.7 × 104m/ sperpendicular to the magnetic field of the electromagnetic wave, find the maximum magnitudes of the (c)electric and (d)magnetic forces exerte
The microwave radiation left over from the Big Bang explosion of the universe has an average energy density of 3.95 × 10-14J/m3. What is the rms value of the electric field of this radiation?
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 4.83 x 105 N.
A force of 8N acts on an object on a frictionless horoizontal surface. The force acts in a vertical plane at an angle of 30 degrees with respect to the objects direction of motion. If they force dis
The rock first moves horizontally from the origin to the point (3.0 m, 0). Then it moves vertically from (3.0 m, 0) to (3.0 m, 5.0 m). How much work is done on the rock by gravity during the displac
What is the magnitude of the electric field (in N/C) from the wire, near the central portion of the wire, at a location 22 meters from the wire? Assume the line is straight.
In a Young's double-slit experiment, the wavelength of the light used is 550 nm (in vacuum), and the separation between the slits is 1.40 x 10-6 m. Determine the angle that locates each of the follow
Show that the dart always hits the monkey, regardless of the darts muzzle velocity (provided that it gets to the monkey before it hits the ground.)
An 11.0 m, 230 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.65, and the ladder makes a 50.0° angle with the ground. How
What is the distance of a sample of blood from the rotation axis of a centrifuge rotating at 3500 rpm, if it has an acceleration of 2000g?
A motorcycle rider starts from rest and goes 3.75 rad counterclockwise around a circular track in 12.3 seconds. Assuming she accelerates at a constant rate, what is her angular acceleration?
A potter's wheel is rotating at 3.2 rad/s in a counterclockwise direction when the potter turns it off and lets it slow to a stop This takes 26 seconds. What is the average angular acceleration of t
If the cam is rotating at a constant angular velocity of 5 rad s, determine the maximum and minimum force the cam exerts on the roller at A. Neglect friction at the bearing C and the mass of the rol
Methane gas (CH4) comprises 7 x 10-5 % by mass of the Earth's atmosphere. What is the residence time of the gas in the atmosphere if it is being lost to the methane sinks at the rate of 4 x 1011 kg
A particle oscillates in simple harmonic motion with a period of 2.04 s and anamplitude of 4.71cm. At t = 0, it is at z = 2:0 cm and it is moving towardz = 0. We wish to write the position of the pa
Excluding the ball, the total mass of the platform and people is 118 kg. Because of the throw, this mass recoils. How far does it move before coming to rest again?
A 3-kg object moving to the right on a frictionless, horizontal surface with a speed of 2 m/s collides head-on and sticks to a 2-kg object that is initially moving to the left with a speed of 4 m/s.
Two convex lenses with focal lengths f1 = 6.0cm and f2 = 8.0cm are located 24.4cm apart. An object is located 13cm in front of the first lense. Calculate the distance from lense 2 to the final image
An AC generator consists of 6 turns of wire. Each turn has an area of 0.040m^2. the loop rotates in a uniform field (B=0.20T) at a constant frequency of 50 Hz. what is the maximum induced emf?
If the bead is released from rest halfway between the two plates, what is the speed of the bead when it hits one of the plates?