Assume that a spy satellite in orbit carries a telescope that can resolve objects on the ground as small as the width of a car’s license plate. if the satellite is in orbit at 400 km above the earth’s surface (which is typical for orbiting telescopes) and it focuses light of wavelength 505 nm , what minimum diameter of the mirror (or objective lens) would be needed (take the width of a typical license plate to be about 30.0 cm )?
answer is not 89 cm

Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop