Which of these represent a velocity a.123 km/sec. b.34 m/min east
c. 24miles/hr and slowing.
d.15meters west

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this

Sound travels slower in colder air that it does in warmer air. make a claim about the effect of air temperature on the speed of sound. support your claim with evidence