(1) A mass of 2.0 kg of water is heated. The temperature increase of the water is 80 °C.
The specific heat capacity of water is 4200 J/kg °C.
Calculate the change in thermal energy when the water is heated.
Use the equation:
change in thermal energy = mass x specific heat capacity ~ temperature change

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

That would be the corect answer hope this

Simple harmonic motion wind energy circulation best answer from the choices

Answer (d) the universe had cooled enough for atoms to combine, protons and neutrons were too far apart to form nuclei;