Which of the following takes about 28 days? A. The Earth spinning on its axis
B. The moon going around the Sun
C. The Earth going around the Sun
D. The moon revolving around the Earth

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

The voltmeter reads 117 v and ammeter reads 0.13 a .if the resistance of ammeter and voltmeter are 9 kilo ohm and 0.015 ohm respectively ,find the value of r. 3marks

Astudent is concluding an expirinent to determine how far a ball will roll down a ramp based on the angel of incline. what are three possible controls for this expiriment