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Q1. If the focal length of the concave lens is -7.50, at what distance from the lens must an object be placed so that its image is formed 3.70 from lens?
Q2. A plane first moves from the origin to point A located at 170 km in direction of 30 degree north of east after that it flies 150 km 20 degree west of north to point B finally it flies 195 km due west to point C. find the location of C from origin.
Q3. One wishes to utilize neutrons to resolve two objects. The neutrons are emitted from the separate objects with a speed of v = 2.1 x 103 m/s and pass through a circular opening with diameter d = 0.06 mm. According to the Rayleigh criterion, what should be the minimum angle between the two objects?
Sketch the electric field and equipotential lines associated with a 6 coulomb negative charge and a 3 coulomb positive charge. what is the force between the charges
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.2 m/s2, How fast will the automobile be traveling at that instant
The electric motor of your new 2012 Chevrolet Volt is rated at 111 kW [W=J/s]. The mass of the car is 1600kg. How much time will it take to reach the higher speed
if a force of 500n is needed to stretch a spring 2 cm, what force is needed to stretch 5cm
An ac generator with a frequency of 1.54kHz and an rms voltage of 22.2V is connected in series with a 1.90k, What is the power factor for this circuit
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 , length 84.4, Calculate the weight of the rod
The two parallel plates in the figure below are 2.0 cm apart and the electric field strength between them is 2.1 104 N/C. An electron is launched at a 45° angle from the positive plate. What is the maximum initial speed v0 the electron can have witho..
A jet aircraft is flying at constant altitude. At t1 = 0 it has components of velocity vx = 150 m/s and vy = 130 m/s, What is the acceleration's magnitude and direction during this time interval
A 21 kg block on a horizontal surface is attached to a horizontal spring of spring constant k = 2.3 kN/m, What is the kinetic energy of the block when it has moved 2.0 cm from its point of release
if a hydroelectric facility is to produce 100 000 hp with an elevation difference of 300 ft, what is a suitable speed (in rpm) if a kaplan turbine, operating at high efficiency, is used
A block of mass M=0.20 kg is attached to a spring with force constant k=12.0 N/cm. Calculate the period the resulting oscillations and the total energy of the system assuming no damping
In a two-slit experiment a third order bright fringe is observed at an angle of 7.10°. If the wavelength of light is 595 nm, what is the slit separation?
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