Our friend Peter back at the zoo is using a crane to lift an elephant into an enclosure. The elephant weighs 10,000 N. The crane lifts the elephant 5 meters in 25 seconds. How much power was used to accomplish this task?
in which of the situations listed below is energy being transferred as heat to the system in order for the system to do work? In which situa tion is work being done on the system in order for energy to be trans- ferred from the system as heat? a. Two sticks are rubbed together to start a fire. b. A firecracker explodes. c. A red-hot iron bar is set aside to cool.
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the answer is option A, i think but i am not sure
F has _valence electrons. 02 OOO 9 19
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As far as I know it's 7
What is the acceleration of a softball if it has a mass of 0.5 kg and hits the cathers glove with a force of 25n
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Acceleration is found if we have the force and mass.
With the following equation: F = ma, we can find the missing values.
F = 25n M = 0.5 kg a = ?
a = f/m a = 25/0.5 a = 50
a = 50 m/s
So, the acceleration is 50 m/s^2
Compare and contrast the general characteristics of a gas giant planet and one of the inner planets (such as Mercury, Earth, Venus or Mars)? Give two differences and one similarity.
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The gas planets usually have extremely high gravitational pulls, the surface isn't solid (since its a gas planet), and gas planets are larger than the inner planets. Similarities- These planets all have moons and they both revolve around the sun (obviously).
Hope this helps.
In one sentence, explain the relationship between velocity, speed, and acceleration
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Velocity consists of speed and direction combined, while speed is just the rate of movement, and acceleration is the change in velocity over time
Which of the following lists the Earth’s layers in order from hottest to coldest in temperature?A.outer core, mantle, inner core, crust B.crust, mantle, outer core, inner core C.inner core, outer core, mantle, crust D.mantle, crust, inner core, outer core
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The answer is C, Inner core, outer core, mantle, crust.
Well,
Logically, the deeper we go, the hotter it will get.
It turns out that the innermost part of the lithosphere is the hottest, while the outermost part of the lithosphere is the hottest (suprise!).