Auniform steel rod has mass 0.300 kg and length 40.0 cmand is horizontal. a uniform sphere with radius 8.00 cm and mass 0.700 kg is welded to one end of the bar, and a uniform sphere with radius 6.00 cm and mass 0.580 kg is welded to the other end of the bar. the centers of the rod and of each sphere all lie along a horizontal line.
how far is the center of gravity of the combined object from the center of the rod?

express your answer with the appropriate units. enter negative value if the center of gravity is toward the 0.700 kg sphere and positive value if the center of gravity is toward the 0.580 kg sphere.

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

What is the major limitation to the light microscope?

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?