The equation for distance is d= st. if a car has a speed of 17 m/s, how long will it take to go 20 m ? a.1.2 s b. 2.9 s c. 3 s d. 37 s

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.

Whithin which type of system is neither the total mass nor the total energy conserved ? a. open b. connected c. isolated d. closed

How much hereditary information is contain in a human sex cell