1 point How far would you drive in 3 hours if the car is traveling at a constant
speed of 50 km/hour?
100 km
150 km
200 km
500 km
How fast is a runner running if she runs 200 meters in 40 seconds?
1 point

Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.

In which of these samples do the molecules most likely have the most kinetic energy? (2 points) a. solid ice at -5°c b. ice water at 0°c c. liquid water at 98°c d.water vapor at 150°c