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if the radius of curvature of the concave mirror is 15 cm, what is the position,nature and magnification of the image.
An 8-g bullet is fired into a 170 g block that is initially at rest at the edge of a table of 1m height. The bullet remains in the block, and after the impact the block lands d = 2.10 m from the bottom of the table. Determine out the initial speed..
Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 40.0s to speed up from rest to its top speed of 1 rotation every 1.50s, What is the astronaut's tangential acceleration during the first 40.0s
If the current in the solenoid increases uniformly from 0 to 4.1A in 0.70s , what will be the induced emf in the short coil during this time
A 1.30 x10^3kg racecar is driving around a circular track of radius 159 m. What is the magnitude of the net force acting on the vehicle at this time and the force\'s direction relative to the velocity
A toy car with mass of m=166 GRAMS crashes into a spring with constant k=45 N/m. If the car was going v=1.5 m/s, then how far will the spring compress.
A photographer uses his camera, whose lens has a 70mm focal length, to focus on an object 4.5m away. In which direction must the lens move to focus on this second object
A Histogram shows that the mean of rain in the area has increased over the last 5 years. What is the probability that the mean would be higher this year than in the previous 5.
A 3 microcoulomb charge is at the coordinated (3,4)mm. A -4 microcoulomb charge is at the coordinates (-2,5)mm. find the Electric field vector in polar coordinates at the origin
A uniform flat rectangular sheet of mass m and side lengths a and b rotates with angular speed ? around a diagonal, What is the upper bound on the torque
A car is driven 225 km west and then 78 km southwest (45 degrees). What is the displacement of car from the point of origin (magnitude and direction).
a square loop of wire of side L = 0.25m and resistance R = 0.2 ohms. A constant magnetic field B1 points through the left half of the loop in the negative z direction, What is rate of change in flux through the loop
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. What is the energy of a single photon
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