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If Jocko has a mass of 60 kg and stands at rest on ice catches a 20 kg ball that is thrown to him at 10 kmh How fast does Jocko and the ball move across the ice?
force = mass x acceleration force = mass x (distance/sec2) force x distance = mass x (distance2/sec2) force x distance= work done (energy) energy = mass x velocity2 10km/h = 10000m/h = 166and 2/3 m/s energy as ball hits person on ice = 20 x 166.672 = 555577.778Joules now energy is neither created nor destroyed it is simlply transferred from one form to another assuming ice has no friction then 555577.778= newmass x velocity2 velocity2 = 555577.778/80 = 6944.722225 velocity = 83.335m/s = 5000.1m/h = 5km/h
When does ice storm happen?
Ice storms happens when a cold mass of air and a warm mass of air combine to create a ice storm
Does it take more thermal energy to raise the temp of 6 grams of water by 8 degrees C or 5 grams of ice by twenty degrees C?
Ice. For 6 gr of water and 8 deg C you need 6 x 8 = 48 calories For 5 gr of ice and 20 deg C you need at least 100 ( 5 x 20) if we neglect small difference in the specific heat of ice versus water. If the ice melts then you need additional thermal energy to break the hydrogen bonds in ice (melting thermal energy) so it is even more.
When did Beringia form a land bridge from Asia to north America?
The Beringia land bridge was created when the sea levels were lowered as water was stored in the ice caps and glaciers. As the ice caps and glaciers melted, the land bridge became submerged.
How much heat energy would be required to bring a 15 kg block of ice from -20 degrees Celsius to steam at 120 degrees Celsius?
46389000 j
What is the number of grams of ice that can be melted by 1 g of 100c steam?
There is no mass loss (nor gain) in state change, so there would be 100 grams of ice formed.
What are facts about the Antarctic ice sheets?
1. Ice sheets contain enormous quantities of frozen water. If the Greenland Ice Sheet melted, scientists estimate that sea level would rise about 6 meters (20 feet). If the Antarctic Ice Sheet melted, sea level would rise by about 60 meters (200 feet). 2. The Antarctic and Greenland ice sheets contain more than 99 percent of the freshwater ice on Earth. 3. An ice sheet is a mass of glacial land ice extending more than 50,000 square kilometers (20,000 square miles).
If Jocko has a mass of 60 kg and stands at rest on ice catches a 20 kg ball that is thrown to him at 10 kmh How fast does Jocko and the ball move across the ice?
force = mass x acceleration force = mass x (distance/sec2) force x distance = mass x (distance2/sec2) force x distance= work done (energy) energy = mass x velocity2 10km/h = 10000m/h = 166and 2/3 m/s energy as ball hits person on ice = 20 x 166.672 = 555577.778Joules now energy is neither created nor destroyed it is simlply transferred from one form to another assuming ice has no friction then 555577.778= newmass x velocity2 velocity2 = 555577.778/80 = 6944.722225 velocity = 83.335m/s = 5000.1m/h = 5km/h
When does ice storm happen?
Ice storms happens when a cold mass of air and a warm mass of air combine to create a ice storm
Years ago, a 20 kg block of ice was used daily in the home icebox to keep food cool. The temperature of the ice was zero degrees Celsius when delivered. How much heat did the ice absorb by the time it all melted?
6,660,000 J
Ice has a density of 92gcm3 What is the mass in kg of 20m3 if ice?
Ice has a density of 916,8 kilograms per cubic meter or 0.9128 grams per cubic centimeter. 20 cubic meters of ice weigh then 20 times 916,8 = 18336 kilograms = 18.336 tonnes.
What is the kinetic energy of an object that has a mass of 20 kilograms and a speed of 2.8ms?
A. 56 j
What is the kinetic energy of an object with a mass of 30kg and a velocity of 20 ms?
6,000 J
What is the kinetic energy of an object that has a mass of 20 kg and a speed of 2.8m per second?
The object's kinetic energy is 78.4 joules.
What is the mass of a book on a 2 meter high shelf with 20 joules of potential energy?
10
What is the initial velocity that must be given to a 1kg mass if it is to move to a height of 20m. what is the total energy?
After 20 m all kinetic energy have been transformed to potential energy.Epot=m*g*h=0.15*9.81*20=29.4 Joule
What is the Potential energy of an object that has 20 kgand at rest 5 m?
20 kilograms and 5 meters? Potential energy = mass * gravitational acceleration * height PE = (20 kilograms )(9.80 m/s2)(5 meters) = 980 Joules of potential energy -----------------------------------------
