The number of electrons in the outer ring of the elements phosphorus, iodine, vanadium, cobalt, sodium, nitrogen, helium, gold, zinc

Explain why an electromagnet usually has a core of iron or steel

What do sun spots allow us to know about the sun

How does the law of conservation of mass apply to this reaction:Al+3HCl-->H2+AlCl3

How much work is done if an object moves 4.5 m in has 12 Newtons of force acting on it

You digitize an analog signal that has a frequency bandwidth of 20kHz, using a bit depth of 16. What data rate must be supported? a. 640 kbps b. 64 kbps c. 320 kbps d. 256 kbps

A football travels 25 m in 2.5 seconds. What is the speed of the football?

A 25 kg ball is thrown into the air when thrown it's going 10 m/s calculate how high it travels

As part of a circus performance, a man is attempting to throw a dart into an apple which is dropped from an overhead platform. Upon release of the apple, the man has a reflex delay of 215 milliseconds before throwing the dart.

A train travels 90 kilometers in 1 hour, and then 82 kilometers in 5 hours. What is it's average speed?

3. A hydraulic lift is used to jack a 950-kg car 45 cm off the floor. The diameter of the output piston is 23 cm, and the input force is 375 N. a. What is the area of the input piston? (10pts) b.