A diver who weighs 500 N steps off a diving board that is 10 m above the water. The diver hits the water with kinetic energy of 8) _______ A) 10 J. B) 500 J. C) 5000 J. D) more than 5000 J. E) 510 J.
Answers
Answer:
C) 5000 J
Explanation:
when diver is at some height , he is having some energy in the form of potential energy. when he dives, his potential energy is converted into kinetic energy . so kinetic energy and potential energy are equal.
Kinetic energy of diver = potential energy of diver
= mgh
= 500 x 10
= 5000 J .
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two cylinders p and q are made of copper the height of p is twice the height of q . the diameter of p is half the diameter of q
Electrically charged flares that arch up from the Sun are known as _______.
If an electric charge is accumulated on an object, it is referred to as _____
Answers
The rocket launches when the countdown reaches "T minus 0." "T" represents the time remaining until a specific event.
What does "T" symbolize in rocket launch countdowns?
In the context of rocket launches, "T" represents time. The countdown begins with "T minus" indicating the time remaining until liftoff. As the countdown progresses, the value of "T" decreases, counting down to zero, which marks the exact moment of launch.
Once the rocket is airborne, the countdown transitions to "T plus," denoting the time elapsed since liftoff. This standardized countdown terminology allows mission control to communicate crucial timing information precisely and efficiently during various phases of the rocket's journey.
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Answer: The "T" in rocket launch
Explanation:
This tells the Mission Control What will be happening
Answers
Answer:
The time required by the Athlete to work off 1.00 lb of body fat = 0.296 minute
Explanation:
1 lb of body fat = 4.1 k cal
1 k cal = 4.184 Kilo joule
1 lb of body fat = 4.1 × 4.184 = 17.1544 Kilo joule
Athlete expends 3480 Kilo joule in one hour
⇒ Time required to expand 3480 Kilo joule = 60 minute
⇒ Time required to expand 1 Kilo joule =
⇒ Time required to expand 17.1544 Kilo joule = × 17.1544 = 0.296 min
Therefore the time required by the Athlete to work off 1.00 lb of body fat = 0.296 minute
Answers
Answer: 3MW
Explanation:
W = 1/2 mv^2
W = 0.5 x 1200 x 25^2 = 375 kW
T = 8s
P= 335 x 10^3 x 8 = 3,000 kW = 3MW
The star with very long wavelength does not emit light in the red part of the spectrum.
The star with very short wavelength does not emit light in the blue part of the spectrum.
The star with a wavelength of approximately 500 nm does not emit light in the green part of the spectrum.
The star with a wavelength of approximately 500 nm does not emit light in the red part of the spectrum.
Answers
Answer:d
Explanation:
took test
Answers
Answer:
(9/35) = 0.257
Explanation:
Box contains 9 new light bulbs and 6 used light bulbs, total number of bulbs = 15.
Probability of selecting two bulbs; a new light bulb and then, a used light bulb in that order = [(probability of selecting a new bulb) × (probability of selecting a used bulb from the rest)] = [(9/15) × (6/14)] = (9/35) = 0.257
Final answer:
The probability that Meredith will select a new bulb and then a used bulb in sequential order without replacement is around 26%.
Explanation:
The question asks about the probability of selecting a new light bulb and then a used light bulb from a box containing 9 new light bulbs and 6 used light bulbs. Probability events like these are solved using multiplication rules of probability that each event is independent.
First, the probability of picking a new bulb is 9/15 (total bulbs are 15). If you pick one out, you don't replace it, so there are only 14 bulbs left. Thus, the probability of picking a used bulb now is 6/14. Hence the probability of both events happening in order is the multiplication of both, i.e., (9/15)*(6/14) = 54/210 = 0.257 or around 26%.
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27.5 square units
36.0 square units
40.5 square units
45.0 square units
Answers
The area of the kite that is inscribed in a square is 40.5 square units.
How do you calculate the area?
Given that the side length of the square in which the kite is inscribed is units. The area of a kite is calculated as given below.
Where d1 and d2 are diagonals of the kite that are equivalent to the length of the square. Hence the area can be given as below.
Hence we can conclude that the area of the kite is 40.5 square units.
To know more about the area, follow the link given below.
brainly.com/question/16151549.
The area of a kite is A = (d1d2) / 2, where d1 and d2 are the diagonals of the kite.
Since the kite is inscribed in the square, and the sides of the square are 9 units, the diagonals of the kite are both 9 units.
d1 = 9 units
d2 = 9 units
A = (9units * 9units) / 2
A = 81units² / 2
A = 40.5 units²
Please comment with any questions!