Answer:
Current electricity
Explanation:
moves along a path to turn on a light.
Answer:
HW3 Motion (Ldimension _ obiecL acceleralions) Question rocket on the ground is launched with an acceleration of 40 m/s $ upward. seconds inlo the flight the engine shuts off: Assume there no air resistance. Preliminary questions The acceleraton of the rocket i5 40 mls/5. Do you have t0 then adjust this acceleration wth the acceleration due t0 gravity? When Ihe engine shuts ofl, which molion variable(s) changes and how does change? Calculation What is the maximum height that the rocket reaches? At what time atter launch will tne rocket retum to the ground? Queslion You drive into 120 meter long block Irom the Ielt end at = constant speed of 21 mls_ Alter some Ume. you brake with constant acceleralion 0l 3 msls: You want come (0 slop at Ine right end of the block: How much time (Irom when you enter Ihe block) should you wail belore braking? How far down the block (from the left end) d2 you travel before braking? Question You are rest at stop sign; There another stop sign that is 100 meters away: Your maximum acceleration is mists and You maximum braking acceleration misis How much time do you spend acceleraling? How much time do you spend braking? What is the tolal travel lime? Over how much distance do you accelerate? Over how much distance do you brake? What is the tolal travel distanco?
Explanation:
6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.
Power = Energy / time, The time is the one it takes to cover 25 km at 65 km/h, so: time = 25/65*60*60 = 1384.6 seconds.
Now the total energy needed for that is: Energy = Power * time = 15,000 * 1384.6 = 20769239.8 J.
The heat provides those J. The heat for a difference in temperature is:
Heat = mass * c_h * Difference_of_temperature,
Heat = 350 * 9,800 * (T-15)*0.88,
where the 0.88 is because some of the heat is lost, efficiency 88%. Now, you can equal both results and get T:
350*9,800*0.88*(T-15) = 20769239.8
T-15 = 6.88, and T = 21.88 C
The answer is T= 21.88 C
NB: this specific heat, 9,800, is more than 2,000 time sthat of water, it is really a substance that does not exist,. It seems He has the highest (5,300) but it's a gas!
