In a laser the emitted light is __________
Fill in the blank(s) with correct word
monochromatic, coherent
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A Cessna aircraft has a liftoff speed of 120 km/hr. What minimum constant acceleration does this require if the aircraft is to be airborne after a takeoff run of 200 m?
a. 2.31 m/s2 c. 4.63 m/s2 b. 2.78 m/s2 d. 5.55 m/s2
A.A B.B C.C D.D E. Toward the viewer F. Away from the viewer T. The field is zero.
A circular coil (radius = 0.25 m) has 143 turns and is in a uniform magnetic field. If the orientation of the coil is varied through all possible positions, the maximum torque on the coil by magnetic forces is 0.29 N?m when the current in the coil is 2.7 mA. What is the magnitude of the magnetic field?
a. 5.47 T b. 0.304 T c. 3.83 T d. 137 T
Which of the following is not a fundamental force?
a. the gravitational force b. the electromagnetic force c. the strong force d. the force of forward motion also known as the inertial force e. Choose this answer if two of the named forces are not fundamental.