Match the definition to the correct term. a substance that is released I into the atmosphere the energy that holds protons and neutrons together in an atomic nucleus renewable energy from plants and animals a. nuclear energy b. emission c. biomass
What explains the reason for having to cook food for longer at high altitudes? The atoms that make up the food behave differently at lower atmospheric pressure. The lower atmospheric pressure causes the boiling temperature to be lower. The food molecules stick together more and require more energy to separate them.
As the temperature of the gas in a balloon decreases, which of the following occurs? The volume of the balloon increases. The average kinetic energy of the gas decreases. The gas pressure inside the balloon increases. all of the above
How is radiation different from convection and conduction? It can travel through empty space. It can travel through matter. It can travel through water.
Match this description with the term that closely matches it: Process that lowers the average speed of molecules in a liquid.
Which object measures atmospheric pressure? a ballast tank a barometer a thermometer
11) What term is defined as the flow of electrons from one location to another? A) Resistance B) Transparency C) Density D) Electricity D) Electricity C) Density A) Resistance B) Transparency
7. How are stars and planets formed? 8. Which planets are terrestrial and which are gas glants? What order are they in?
An electron component has a voltage drop of 25 volts and an impedance of 10 ohms.How much power is being dissipated by this component? 92.5 W 72.5 W 82.5 W 62.5 W
According to this PHET Atomic Simulation, how many neutrons make carbon unstable? 6 7 8
1. Choose the correct statement or equation. When a wave in a string reflects from an open or flexible end, the reflected wave has the same wavelength and amplitude as the original wave. When a wave in a string reflects from a fixed end, the reflected wave has the same wavelength and amplitude as the original wave.
In what ways are meteorites different from meteors? What is the probable origin of each? Meteors typically come from comets that have passed through the solar system; their solid material is freed when the ice is vaporized by the heat of the Sun. Meteorites miss the atmosphere whereas meteors hit the outer layers only. Most meteors come from Mars and carry important information about the past of the red planet. Meteorites are large enough to withstand the violent passage through Earth's atmosphere, whereas meteors burn up from the heat of friction. Most meteorites, on the other hand, are from asteroids or from debris kicked up on the Moon or Mars during an impact.
If a rock is dropped from a height of 87 ft, its poistion t seconds after it is dropped until it hits the ground is given by the function $s(t)=-16t^{2}+87$ Round values below to 3 decimal places. How long does it take the rock to hit the ground? $\square $ seconds Find the average velocity of the rock from when it is released until when it hits the ground. $\square $ feet per second What time after the rock is thrown will its instantaneous velocity be equal to its average velocity? (Apply the Mean Value Theorem) $\square $ seconds after it is thrown
The bending or change in angle of light as it passes through a lens is called $\square $
Photons of a certain infrared light have an energy of $1.91\times 10^{-19}J$ (a) What is the frequency of this IR light? $\square $ Hz (b) Use $\lambda =c/f$ to calculate its wavelength in nanometers. $\square $ nm
The outer planets of the solar system were formed by asteroid agglomeration comet collisions gravitational forces temperature increases
Multiple Choice 2 points Step 3 of Part 2: The flashlight is shining to an azimuth of 225 degrees. What is the azimuth of the shadow? 0 degrees 45 degrees 90 degrees 180 degrees
1) The height of the Washington Monument is measured to be 170 m on a day when the temperature is $35.0^{\circ }C$ What will its height be on a day when the temperature falls to $-10.0^{\circ }C$ Although the monument is made of limestone, assume that its thermal coefficient of expansion is the same as marble's.
A point is subjected to 5 ksi biaxial tension. The diameter of the corresponding Mohr's circle is most nearly: O 5 ksi 7.07 ksi 10 ksi
A ball is thrown vertically upward. After r seconds, it's height him feet) is given by the function $h(t)=40t-16t^{2}$ After how long will It reach its maximum height? Do not round your answer. Time: $\square $ seconds
