Two point sources (pixels) of monochromatic radiation can be resolved as close as 0.3 cm apart when viewing them at a distance of 1500 m through a lens 7 cm in diameter. what is the wavelength of the radiation? a) 2.1 x 10^-7 m b) 6 .3 x 10^-7 m c) 1.148 x 10^-7 m d) 0.643 x 10^-7 m e) 1.35 x 10^-7 m

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?