Prefix Symbol Factor Prefix Factor 1000000000 1000000 1000 100 .01 001 000001 00
ID: 287288 • Letter: P
Question
Prefix Symbol Factor Prefix Factor 1000000000 1000000 1000 100 .01 001 000001 000000001 kilo hecto micro nano 49.0 CONVERSIONS (9 PTS) Solve the following problems by converting the units. Show all your work to receive full credit The common garden snail travels at 03 miles per hour Suppose the snail was eating some flower in the garden when it began to rain. The snail lives under a rock that is 10 feet away from the plant. Dr. Davis says it will start to rain heavily in the next 5 minutes. Can the snail make it back to the rock before the downpour begins? (3 PTS) rock :10n away Ihr 0.305m rain : 5 minits We are watching a hail storm with Dr. Davis. Dr. Davis says the hail stones are falling from a height of 300 meters. Each hailstone has a mass of 180 grams (softball sized). How much kinetic energy, in joules, does one of these hail stones have when it hits the ground? What velocity, in m's, does the hailstone have? (Hint: Another way to write joule is kg'm's). (3 PTS) Stone mass: 180 grams min failing height: 300 meters We are visiting Canada on Black Friday because you have more buying power due to the exchange rate. Canada uses Celsius for the temperature scale. You hear that the temperature that day will be 5°C. Wha is that temperature in °F? Dr. Davis informs you that based on scientific consensus that this region will see a 5°C temperature rise by the year 2100 if the world continues to produce carbon dioxide at its curre rate. What would the forecasted temperature be in oF in 2100,(3 PTS) 1.8 x5'0) +32 8 32 50Explanation / Answer
Kinetic energy is zero when object is at rest or when it hits the ground after falling. Hailstone falling from a height of 300 meters have a kinetic energy but when it hits the ground its velocity becomes zero and kinetic energy becomes zero . But dye to conservation of energy the kinetic energy is converted to heat at the time when hailstone hits the ground.
Answer is kinetic energy is zero and velocity is zero.