Answer:
The kinetic energy of the car at the top of the hill is 140280 Joules.
Explanation:
Mass of the car, m = 620 kg
Speed of the car, v = 24 m/s
Height of the hill, h = 30 m
The engine can produce up to 144,000 J of work during that time, W = 144,000 J
We need to find the kinetic energy of the car at the top of the hill. It can be calculated using conservation of mechanical energy as :




So, the kinetic energy of the car at the top of the hill is 140280 Joules. Hence, this is the required solution.
Answer:
3565 J
Explanation:
F = Force applied = 1550 N
s = Displacement caused by the applied force = 2.3 m
= Angle at which the force is applied = 0°
When we multiply force, displacement and the angle at which the force is applied we get work
Work done is given by

The work done by team A is 3565 J
The balloon started to inflate which suggests that the chemical created a reaction and since the chemical couldn't go into the air or out of the flask it created the gas inside which inflated the balloon. Also you can see little bubbles forming and going to the surface which suggests a gas was produced, I hope this made sense lol XD
Answer:
400
Explanation:
Formula used in solution:


The given information:


Solution

Answer:
