Ineed answer fast a sample of gold has a mass of 38.6 grams and a volume of 2 cm3. what is the density of gold? a sample of iron has a mass of 46.8 grams and a volume of 6 cm3. what is the density of iron? water has a density of 1.0 g/cm3. what is the mass of 10.0 cm3 of water

Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)