Answer:
Explanation:
Hello!
In this case, since equilibrium temperature problems involve the mass, specific heat and temperature change for the substances at different temperatures, we can write:
Thus, since we are talking about water and they both have the same specific heat, we can write:
Now, we plug in the temperatures to obtain:
Next, since the total volume of water is 800 L, since it has a density of 1kg/L, we infer the total mass is 800 kg; that is why we can write a 2x2 system of simultaneous equations:
Thus, the masses of both cold and hot water turn out:
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Answer:
B. Gravity and air resistance
Explanation:
Experimentation has proven that :
When the parachute opens, air resistance becomes much greater than gravity. The forces are no longer balanced and this changes the
speed
Answer:
Potential Energy is the energy that is waiting to be released like at the top of the roller coaster, Kinetic energy is the energy that is moving the rollercoaster downhill fast.
Three Laws:
The rollercoaster will rest at the top, and then the gears will make it move downhill, and make it stop.
The gears make the rollercoaster move, and in reaction, it pushes back on the gears.
Answer:
Your answer should be 2. Short
Explanation:
Answer:
c
Explanation:
wavelength = speed of light/ frequency
= (3x 10^8 m/s)/(5.0 x 10^14 Hz)
= 6.0 x 10^-7 m
