3 m
M
m
M
before
after
A block of mass m= 5.9 kg slides from left to right across a frictionless surface with a speed Vi= 8.3 m/s. It collides with a block of mass Mthat is at rest. After the
collision, the 5.9-kg block reverses direction, and its new speed is vf=2.5 m/s. The block of mass M travels to the right at a speed 7 of 3.8 m/s. What is M?
O 7.9 kg
O 23 kg
O 12 kg
O 17 kg
O 9.3 kg

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c