How many grams of O2 are needed to produce 45.8 grams of Fe2O3 in the following reaction? 4Fe(s)+3O2(g) - 2Fe2O3(s)
A manufacterer of computers designed to aid social scientists in analyzing rsearch data claims that are operational for at least 80% of the time . during the course of the year one computer was operational for 270 days. test, at the 1% CONFIDENCE LEVEL, whether the manufacture...
IF A 0.5 Kg baseball(at rest) is hit by a bat with a force of 200.0 N what is the magnitude of the baseball just as it is leaving the bat?
vi= 18 m/sec constant vj= 24-gt= 24-9.8*6= 24-58.8= -34.8 m/sec v^2= vx^2+vy^2= 18^2+(-34.8)^2=1535.04 KE= 1/2mv^2 KE= .5*1*1535.8= 767.9 joules
There are ten equal parts to a circular track for 2 toy cars and the distance from the inner to the outer is 3.4 inches. What is the width of the track?
both my hundreds and units digits are one-half of my tens digit.the sum of my three digits is 16. what am i?
Differenciate between speed and velocity
A 224 g particle is released from rest at point A along the diameter on the inside of a fric- tionless, hemispherical bowl of radius 44 cm. The acceleration of gravity is 9.8 m/s2 .
A bead slides without friction around a loop- the-loop. The bead is released from a height of 12.9 m from the bottom of the loop-the- loop which has a radius 4 m. The acceleration of gravity is 9.8 m/s2 . A 4m 12.9 m What is its speed at point A ? Answer in units of m/s
You have a 40 inch wheel tow 20 inch wheel to a 5 inch wheel how many revolutions does the 5 inch wheel have to make to make the 49 inch wheel rotate 1revolution?