Which statement comparing examples of renewable and nonrenewable resources is true? A. Wind is a renewable resource because it can't be used up, but coal is a nonrenewable resource because it will eventually run out.
B. Wind is a nonrenewable resource because it can't be used up, but coal is a renewable resource because it will eventually run out.
C. Both wind and coal are renewable resources because they will never run out.
D. Both wind and coal are nonrenewable resources because they will eventually run out.
Answers
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Nuclear energy use can negatively impact water quality. Please select the best answer from the choices provideda. True b. False
Which of the following is NOT an example of work?a. a windmill turning in the wind b. a person sliding a box across the floor c. a metal bar bracing a leaning brick wall d. an air bag deploying in an automobile wreck
The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?(1 point)The air holds little water vapor and is relatively dry.The amount of water vapor in the air is 90% of what the air can hold.The dew point temperature is 90% of the air temperature.The temperature must rise in order for air to become saturated with water vapor.
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As the diver goes up into the air, the potential energy is converted into kinetic energy and gravitational potential energy.
Answers
Answer:
Velocity: At rest they all have zero velocity.
Explanation:
Is there more information (e.g., mass, volume, etc.) for the cannonballs?
Assuming they are at rest, their velocity is the same: 0
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Answer:
the answer is 3000
Explanation:
power=mass×gravity×height or (divided by /Time)
so 100kg×10×60m/20s
=60,000/20
=3000joule
if I am wrong correct me
B) Earth's geographic north pole is actually a magnetic south pole.
C) Earth's geographic south pole is also a magnetic south pole.
D) The north poles of two bar magnets will attract each other. Scientists have evidence that single isolated magnetic poles, called magnetic monopoles, exist.
E) The south poles of two bar magnets will repel each other.
Answers
Answer:
A) The north pole of a bar magnet will attract the south pole of another bar magnet.
B) Earth's geographic north pole is actually a magnetic south pole.
E) The south poles of two bar magnets will repel each other.
Explanation:
According to classical physics, a magnetic field always has two associated magnetic poles (north and south), the same happens with magnets. This means that if we break a magnet in half, we will have two magnets, where each new magnet will have a new south pole, and a new north pole.
This is because for classical physics, naturally, magnetic monopoles can not exist.
In this context, Earth is similar to a magnetic bar with a north pole and a south pole. This means, the axis that crosses the Earth from pole to pole is like a big magnet.
Now, by convention, on all magnets the north pole is where the magnetic lines of force leave the magnet and the south pole is where the magnetic lines of force enter the magnet.
Then, for the case of the Earth, the north pole of the magnet is located towards the geographic south pole and the south pole of the magnet is near the geographic north pole.
And it is for this reason, moreover, that the magnetic field lines enter the Earth through its magnetic south pole (which is the geographic north pole).
Answer:ITS what that man said
Explanation:
Answers
Answer: not be able to stop in time to miss the object
Explanation:
The phrase "Over-driving your headlights" means that a person is driving at such a speed that the vehicle's stopping distance is greater than the maximum viewable distance with the headlights on.
When this occurs, it will be impossible for the vehicle to stop moving in time to avoid an object viewed by the driver in the range of his headlights.
This is a dangerous driving practice and can be avoided by driving at reduced speeds.
Final answer:
Over-driving your headlights implies a situation where you are driving so fast that you won't be able to stop within the area illuminated by your headlights. Therefore, if you see an object in your path under such circumstances, you are likely not going to be able to stop in time to avoid hitting it. Headlights' range is usually 350 feet, and driving at a speed that requires a stopping distance greater than 350 feet is considered over-driving your headlights.
Explanation:
The phrase 'over-driving your headlights' refers to a situation where a driver is traveling at such a speed that their stopping distance is further than the distance illuminated by their headlights. Thus, if an object is within your path, you won't have enough time to stop your vehicle before hitting it, especially if you're speeding.
On most roads, the farthest your headlights can help you see ahead is around 350 feet. If you're driving faster than a speed that permits you to stop within these 350 feet, you're said to be 'over-driving' your headlights. If you're over-driving your headlights, and you see an object ahead then you will most likely not be able to stop in time to miss the object. This is because your vehicle's stopping distance will be greater than your visual distance, which is dependent on the capabilities of your headlights.
Learn more about Over-driving headlights here:
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operation is
(1) 5.67 × 10^5 J (3) 1.05 × 10^1 J
(2) 9.45 × 10^3 J (4) 1.75 × 10^1 J
Answers
The amount of electrical energy used by the television is given by:
where P is the power of the device and t is the time.
The power of the television is P=315 W, while the total time is
If we substitute these numbers into the formula, we find the energy:
so, the correct answer is
(1) 5.67 × 10^5 J
W - energy, P - power, t - time
The answer is (1).