Calculate amount of energy required to change 5kg of ice at -20°c to steam at 100°c Specific heat capacity of ice =2100joules per kilogram per kelvin
Specific latent heat of fussion =336000 joules per kilogram
Specific heat capacity of water 4200joules per kilogram per kelvin
Latent heat of vapourisation =2260000joules per kilogram per kelvin

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?