Find out the diameter of the image
You produce an image of the Sun on a screen, using a thin lens whose focal length is 21.6 cm. What is the diameter of the image? (The mean radius of the Sun is 6.96 x 108 m and its mean distance from Earth is 1.50 x 1011 m.)
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A race car starts from rest on a circular track of radius 329 m. The car's speed increases at the constant rate of 0.770 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.
A piston-cylinder device contains an ideal gas. The gas undergoes two successive cooling processes by rejecting heat to the surroundings. What is the work done on the gas by the piston?
A secondary winding of 2 turns encircles the solenoid at its center. When the primary circuit is opened, the magnetic field of the solenoid becomes zero in 5.20 x 10 ^-2 s.What is the average induced emf in the secondary coil?
What would be the maximum spring compression if the mass was released from a distance of 5 ft above the top of the spring?
A random sample of 75 students at a private elementary school is tested and has a mean intelligence test score of 103.5. The average for the general population of elementary school children is 100 (? = 15).
A high-speed jet of water at an absolute velocity of Vjet = 15 km/h to the right strikes the back of the car. The relative velocity of the water is?
Connectign the outer surface to ground will result in a change in the surface charge density for the outer surface. What is the value of sigma b after grounding? Use Gauss' Law to find E inside the grounded metal sphere, a<r<b.
Relative a reference frame the recorded motion of P for the first t seconds is: r(t)=[(2.25+2.13t^3)i+(225+0.993t^2)j]m. Determine the velocity and speed of P and what is the acceleration of P.
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