What is the maximum temperature in a hot whirlpool to be considered safe?
Answers
Answer:
104 degrees
Never let the hot tub's water temperature get above 104 degrees Fahrenheit. For a healthy adult, a temperature of 100 degrees is regarded as safe. Young kids should use extra caution.
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What occurs when a swimmer pushes through the water to swim?
Physics help!! 10ptA small object placed in the gravitational field of a more massive object willA. accelerate toward the more massive object.B. accelerate away from the more massive object.C. move toward the more massive object at a constant speed.D. move away from the more massive object at a constant speed.
This scientist focused his study on planetary motion. One of his laws is the planets orbit the Sun in elliptical patterns.HubbleKeplerNewtonCopernicus
Answers
Answer:
Distance traveled will be
Explanation:
We have given speed of the light
We have to find the distance traveled by light in 1 year
We know that 1 year = 8760 hour
And 1 hour = 60×60 = 3600 sec
So 1 year
We know that distance = speed × time
So distance traveled by light in one year
We have to fond the distance in km
As we know that 1 km = 1000 m
So
Final answer:
Radio messages will travel approximately 9.46 x 10^12 kilometers in exactly one year.
Explanation:
Radio waves travel at the speed of light which is approximately 3.00 x 108 m/s.
To find out how many kilometers radio messages will travel in exactly one year, we need to first convert the speed of light into kilometers per second.
Since there are 1000 meters in a kilometer, we divide the speed of light by 1000 to convert from meters to kilometers. Then, we multiply this value by the number of seconds in a year (365 days x 24 hours x 60 minutes x 60 seconds) to get the total distance traveled in kilometers.
In summary, radio messages will travel approximately 9.46 x 1012 kilometers in exactly one year.
Learn more about Speed of light here:
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Answers
The centripetal acceleration of the ball would be 88.44 m/.
Centripetal acceleration
The centripetal acceleration (ac) of an object moving in a circle at a constant speed is given by the formula:
ac = (v^2) / r
where v is the speed of the object and r is the radius of the circle.
In this case, the ball is revolving uniformly in a circle of radius 0.75 meters, and it makes 2.0 revolutions per second. To find the speed of the ball (v), we need to convert the number of revolutions per second to the angular velocity (ω) in radians per second:
ω = 2π x (number of revolutions per second)
ω = 2π x 2.0 = 4π radians per second
The speed of the ball (v) is then given by:
- v = ω x r
- v = (4π rad/s) x 0.75 m = 3π m/s
Now we can calculate the centripetal acceleration (ac) of the ball:
- ac = (v^2) / r
- ac = [(3π m/s)^2] / 0.75 m
- ac = 9π^2 m/s^2 ≈ 88.44 m/s^2
Therefore, the centripetal acceleration of the ball is approximately 88.44 m/s^2.
More on centripetal acceleration can be found here: brainly.com/question/1052267
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Answers
Answer:
Explanation:
The internal energy of any material is calculated as the sum of kinetic and potential energy of randomly distributed molecules.
This energy depends on temperature as well, if the temperature will increase the randomness will also increase hence will be the internal energy.
If any work is done on the system, then also the internal energy of the system is increased.
Answers
The wind machine on an average operates for a time of about .
Explanation:
The wind energy is the method of using the energy carried by the wind to generate the power. The wind energy is the considered as the conventional and clean source of energy.
The wind machines require the high power winds to rotate the blades of the windmill and produce power using the energy of the moving wind.
The winds blow at such high speed for a very small time during the day, the wind machine cannot be expected to work for a longer time during the whole day.
The wind energy can be obtained form a wind mill for a limited time unlike the other form of energy like thermal energy or even the solar energy. The thermal energy can be obtained at anytime due to burning of fuel whereas the solar energy can at least be obtained during the whole day time.
Thus, the wind machine on an average operates for a time of about .
Learn More:
1. Acceleration of the box under friction brainly.com/question/7031524
2. The kinetic energy of an object depends on the brainly.com/question/137098
3. The approximate time taken to walk for 2000 miles brainly.com/question/3785992
Answer Details:
Grade: Middle School
Subject: Physics
Chapter: Energy
Keywords:
wind energy, conventional source, energy, thermal, solar, 3-4 hours, high speed, machine, time, operate.
B. Glaciers
C. Moving water
D. Human actions
Answers
Which is not a cause of weathering?
A. well I wouldn't say wind because wind is a part of what happens with tornadoes
B. It would be glaciers because they stand alone unless wind or something takes responsible action for it to happen. So it takes either some other thing for it to happen like water and a really cold temperature.
C. Moving water is like rain so it would be a type of climate so it would not be the answer to what is not a main cause of weathering.
D. human actions is a cause for weathering because you can put a box of melted ice cream in a freezer and it will be frozen again.
To make this less confusing I would say it is B. Glaciers because glaciers cannot cause weather to happen.
~QueenBeauty666~
B. Glaciers
a would not do because wind does a lot of weather damage
c would not do because moving waters cause hurricanes
d would not do because humans cause acidic rain
c. Kelvin s law.
b. Charles s law.
d. Dalton s law.