there were 5 seconds left in a basketball game. In order to run out the clock a player threw the ball directly up as hard as he could. How hard would the player have to throw the ball to make sure that it would not land before time expired? Hint: d= -16t + vt+ h

Ais not a mixture. colloid compound suspension solution

Aheat engine that operates on a carnot cycle has an efficiency of 0.420 when its low-temperature reservoir is at 10 ∘c.part aby how many degrees celsius must you increase the temperature of the high-temperature reservoir to increase the efficiency to 0.600 if you continue to use the same low-temperature reservoir?

The molecular weight of oxygen gas (o2) is 32 while that of hydrogen gas (h2) is 2. prove that under same physical conditions, the velocity of sound in hydrogen is four times that in oxygen