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What 4 digit number is greater then 5000 and the sum of its digit is 9?
There are multiple answers. Some that work are 9000, 8100, 72000 etc... ======================================== How many do you need ? Here are all 35 (integers only): 5004, 5013, 5022, 5031, 5040, 5103, 5112, 5121, 5130, 5202, 5211, 5220, 5301, 5310, 5400, 6003, 6012, 6021, 6030, 6102, 6111, 6120, 6201, 6210, 6300, 7002, 7011, 7020, 7101, 7110, 7200, 8001, 8010, 8100, 9000
What is it called when the kinetic energy of an object is equal to one half it's mass multiplied by its speed?
Squared is the term you need.
What is the equation for a falling object?
The equation for the kinetic energy of a falling object is kinetic energy=1/2 an object's mass multiplied by it's speed squared. From this, we can work out the speed. First you need to know its weight and its kinetic energy. The kinetic energy is obtained by working out it's potential energy before it fell (Potential energy= mass multiplied by gravitational pull multiplied by height. Then, at whatever point during the fall, the decrease in potential energy marks the increase in kinetic energy. From then we work out the speed. Example; An object that weighs 8.1 kilograms is 10 metres above the ground. It's potential energy is therefore 8.1x10(gravitational pull on earth is always 10)x10. So it has a potential energy of 810 joules. it falls 5 metres, so it's potential energy is 8.1x10x5 (405 joules). The total energy, we know, is 810J, so 810-a05=405, giving it kinetic energy of 405J. The kinetic energy formula is then rearranged as speed squared=kinetic energy/ 0.5m. Our equation is therefore speed squared= 405/4.05, so speed squared=100. The square root of 100 is 10 so the speed is 10 metres per second (36 kilometres per hour).
How many candy corns can fit into a regular mason quart jar?
A quart mason jar would hold about 15-20 small candy canes. The cane hook will need to be turned in the same direction in all of them to get them to fit in the jars however.
What is the kinetic energy of a 900 kg car moving 80 miles per hour?
The kinetic energy is one half the mass times the velocity squared KE = 1/2 mv^2 First you cannot mix English and metric units, so you need to convert miles per hour to meters per second and your answer will be in kg m^2/sec^2 or joules 80 mph = 35.76 meters per second KE = 1/2 (80) x (35.76)^2 = 51,151 joules
