4. Again, have someone hold the mirror for you, slowly move at least 3 m away from the mirror. How do you compare your image when you were observing it
closer in front of you and when you were 3m away from the mirror?
Q4​

The electromagnetic force acts between what

Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?