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Here is the question which I am struggling on, please help me!
Question: Your camera's zoom lens has an adjustable focal length ranging from 78.0 to 200 mm.
A- What is its range of powers?
Please use as much detail as possible in answer!!!
question what is the maximum torque on a coil with a magnetic moment of 5.6 a.m2 when it is placed at an angle of 90
Mercury has a mass MP = 3.18 x 1023 kg, an orbital period T = 88.0 days, and an orbital radius r = 5.79 x 10^10 m. Find the angular speed of Mercury about the Sun
Waly Whacko claims to have invented a heat engine that will revolutionize industry. What error did he made in his choice of temperature scale
A 650 kg elevator starts from rest. It moves upward for 4.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
A convex mirror has a radius of curvature of 44.0 cm. When a 5.60 cm tall object is placed in front of the mirror, the magnification is 0.250. How far is the object from the mirror
Suppose that the dipole moment associated with an iron atom of an iron bar is 2.4 x 10-23 J/T. Assume that all the atoms in the bar, which is 6.5 cm long and has a cross-sectional area of 1.1 cm2, have their dipole moments aligned. (a) What is the di..
You heat a 0.45 kilogram sample of metal to a temperature of 80o then quickly transfer it into a beaker that contains 0.70 kilogram of water at 15o. Determine the heat capacity of the sample of metal
An astronaut is connected to her spacecraft by a 25-m-long tether cord as she and the spacecraft orbit Earth in a circular path at a speed of 3.0 x103 m/s. At one instant, the voltage gauged between the ends of a wire embedded in the cord is gauged t..
An insect trapped in a circular groove of radius 12 cm moves along the groove steadily and completes 7 revolutions in 100 s. (a) What is the angular speed, and the linear speed of the motion? (b) Is the acceleration vector a constant vector ? What..
two long parallel wires 5.50 cm apart carry 15.5 a currents in the same direction. determine the magnetic field
A small box with mass 0.250kg is attached to a string passingthrough a hole in a frictionless, horizonatal surface. What is the radius of the circle when the string breaks
A grandfather pendulum has a simple brass rod of length L. The temperature in the house quickly drops to 16.0 oC just after 10PM, and stays at that value. By how much does the length of the pendulum change
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