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A microscope objective lens has a focal length of 10mm. How close should the object be to the objective lens so that the image is formed in the microscope tube 160mm from the objective lens. FYI the answer is 10.67 mm
When a single person shouts at a football game, the loudness of sound at the center of the field is 55 dB. Than all the people shout together, the loudness increases to 106 dB. Suppose that each person is about the similar distance from the center of..
A cannon fires a cannonball from the top of a wall at a speed of 23.02 m/s and an angle of 19.67 degrees from the horizontal. What is the horizontal distance from the wall where the fired cannonball hits the ground
An object is located on the optical axis of a diverging lens a distance of 71.0 cm in front of the lens. Where will the image of this object be located
suppose we have a tank containing 10 gallons of fresh water. water containing 4 lbsgal of salt enters at a rate in
Vector A had y component Ay = 13m. A makes an angle of 30 degrees counterclockwise from the y-axis, What is the x component of A
A 46.6 ?F capacitor is connected to a 46.7 ? resistor and a generator whose RMS output is 24.4 V at 54.0 Hz. Calculate the phase angle for the circuit
An object is released from rest on a planet that has no atmosphere. The object falls freely for 3m in the first second. What is the magnitude of acceleration due to gravity on the planet?
A 5.3MeV (kinetic energy) proton enters a 0.15T field, in a plane perpendicular to the field. What is the radius of its path
A solid cylinder of mass 0.20 kg and radius 1.00cm is released from rest at the top of a 45 degree incline whose height is 1.00m. It rolls without slipping to the bottom of the incline and continues to roll without slipping on the horizontal surface ..
If a tire is moving linearly on a surface with no slipping at a speed of 10 m/s, and it is a radius of .35 m, determine how fast is the tire spinning
A force of 725 N accelerates a 325kg object, initially moving at 7.50 m/s, to a final velocity of 28.5 m/s in 16.5 seconds. What was the change in kinetic energy of the object
Trucks with diesel engines have an efficience of about 40%. How much energy is requried to accelerate an 8,000kg truck from rest to 25 m/s
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