Calculate the force of gravity acting on an object that has a mass of 1.3 kg. the object is on earth so use 9.8m/s2 for the acceleration due to gravity.
a. 0.13 n
b. 7.5 n
c. 12.7 n
d. 1270 n

The ph is the a.independent variable b.the dependent variable c.control group

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

Of is j/kg·k. if a 2.6 kg of isk to k,is ?