Well, "speed" normally = (total distance covered) / (time to cover the distance).
In this case, we don't know the total distance that Santa has traveled, so the question can be answered only if we're willing to consider some other meaning of "speed".
Maybe we could say that in this case, "speed" means the average rate at which he visits houses. Then ...
Speed of visits = (total houses visited) / (time to visit them).
Speed of visits = (800 million houses) / (48 hours)
Speed of visits = 16.67 million houses per hour.
That's 277.8 thousand houses per minute
That's 4,630 houses per second
A car engine uses the combustion of fuel to move a system of gears that
move its wheels. Not all of the fuel's energy is transferred to the wheels.
Which two transformations happen to the rest of the energy?
I A. It is transformed into sound energy.
O B. It is transformed into thermal energy.
I c. It is transformed into chemical energy.
D. It is transformed into nuclear energy.
E. It is transformed into kinetic energy.
Answer:
A and B
Explanation:
When a car engine uses the combustion of fuel to move a system of gears that move its wheels, the fuel's energy is transferred to the wheels and the rest of the energy: is transformed into sound energy and thermal energy. So, option (A) and (B) are correct.
What is law of conservation of energy?Energy cannot be created or destroyed, according to the rule of conservation of energy. However, it is capable of change from one form to another. An isolated system's total energy is constant regardless of the types of energy present. The law of energy conservation is adhered to by all energy forms.
In a nutshell, the law of conservation of energy asserts that the system's total energy is conserved in closed systems, or systems that are separated from their environment.
When car engine uses the combustion of fuel to move a system of gears that move its wheels, maximum of its energy transformed into kinetic energy and rest of energy is dissipated in a form of sound energy and thermal energy. So, option (A) and (B) are correct.
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how does a balanced chemical equation represent the conservation of matter in a chemical reaction?
a. the type of matter in the products is different from the type of matter in the reactants.
b. there are more atoms in the reactants than in the products.
c. there are fewer atoms in the reactants than in the products.
d. the number of atoms of each element in the reactants equals the number of atoms of each element in the products.
Answer:
d
Explanation:
How many atoms of oxygen are in the molecule: H2O2
ANSWER I WILL GIVE YOU BRAINLIES
A. 4
B. 0
C. 2.
D. 1
Answer:
C their is 2
Explanation:
Answer:
The answer is 2.
Which subatomic particle has a positive charge options:
A. Neutron
B. Electron
C. all of the above
D. Proton
how can light from the sun cause skin cancer .
Mechanical energy s the TOTAL potential energy and kinetic energy in an object. TRUE OR FALSE???
Answer:
TRUE
Explanation:
The mechanical energy of an object can be the result of its motion and/or the result of its stored energy of position.
A 59 kg man has a total mechanical energy of 148519.7 J. What speed would he hit the
water?
[PLEASE HELP!!! PROVIDE STEPS IF POSSIBLE]
Answer:
Calculate the potential energy, kinetic energy, mechanical energy, velocity, and height ... LA 59 kg man has a total mechanical energy of 150,023 J. If he is swinging ... ME=2881.2 J b. What is Julie's speed just as she hits the water? v=J 2.KE.
Explanation: