What is the approximate radius R of 208 82Pb? Express your answer in meters to two significant figures. R = 7.10x10-15 mAssuming that each nucleus is roughly spherical and that its mass is roughly equal to A (in atomic mass units u), what is the density of a nucleus with nucleon number A?Express your answer in terms of A, R0, .

Which would not reduce the amount of green house gasses in the air

What occurs during a combustion reaction

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