Converting units can be difficult, so when doing so it is important to remember to write down your computations step by step and to label all units. Joules (J) and calories, the derivative units of kilojoules (kJ) and kilocalories (kcal), are both used to measure energy. Keep in mind ...
How to convert ounces to grams with a formula What will be the gauge pressure and the absolute pressure of water at a depth of 12 meters below the surface? Calculate how much pressure (due to the liquid) would be on a 73-kg person if they were 234 m deep in: a. freshwater. The ...
Convert the following numbers of calories or kilocalories into joules or kilojoules. a. 7845 cal b. 4.55*10^4 cal How many joules and kilojoules are equal to 143 calories? How many joules and calories are equal to 0.639 kilojoules? How many calories and kilojoules are equal to 663 joules?
As it happens, if you add a given amount of heat (Q) in joules to a system, or remove heat from that system, you can determine how much the system's temperature will change (∆T) in Celsius as long as you know the mass of the system (often a sample of water)min grams and it...
(Q) in joules to a system, or remove heat from that system, you can determine how much the system's temperature will change (∆T) in Celsius as long as you know the mass of the system (often a sample of water)min grams and itsspecific heat c, which varies from substance to ...
Yes, any unit of mass and distance can be multiplied as long as they are compatible units. For example, you can multiply kilograms (mass) by meters (distance) to get joules (energy), but you cannot multiply kilograms by seconds (time) as they are not compatible units. ...
For example, if the specific heat is given in joules / gram degree C, quote the mass of the substance in grams too, or alternatively, convert the specific heat capacity into kilograms by multiplying it by 1,000. If the heat capacity is given in joules / mol degree C, it's easiest t...
\ b) What is its kinetic energy in joules if the speed is decreased a factor of exactly 9.0?\ c) What is a) What is the kinetic energy of a 20.0 g bullet moving with a speed of 150 m/s? b) How much work is needed to stop the bullet? A gun converts 200J...
To find out how much energy will be released when 10 kg of Uranium-235 (U-235) is completely converted into energy, we can use Einstein's mass-energy equivalence principle, which is given by the equation:
Let's say you start with 1 liter (roughly 1 kilogram, 2.2 lbs) of cold water at about 10°C (50°F) and you want to raise it 90°C to its boiling point (100°C or 212°F). The amount of energy you need is 4.2 × 1000 grams × 90 degrees = 378,000 joules or 378 kJ....