Hot Student Stories

Physics

Which of the following was formed from leftovers in the solar system? the comet the planets in the upper left corner the sun the planets to the right of the sun

Timothy Norman

follow
followin
1 answer
0 views

Which statement correctly describes a property of white light?. . A. It makes all objects appear white.. . B. It contains different wavelengths of visible light.. . C. It allows light waves to be transmitted.. . D. It contains all waves on the electromagnetic spectrum.

Alexa Spicer

follow
followin
1 answer
0 views

How does volcanic ash in earth's atmosphere affect solar radiation?

Justin Parker

follow
followin
1 answer
0 views

Without the greenhouse effect the Earth would be _______ than it is today. a. warmer b. drier c. colder d. wetter

Heather Maxwell

follow
followin
1 answer
0 views

The energy derived from the digestion of food is __________. a. kinetic energy b. inertia c. momentum d. chemical energy

Bethany Evans

follow
followin
1 answer
0 views

What kind of motion indicates a system where the net force equals zero only accelerating objects only stationary objects both accelerating and stationary objects only objects moving with a constant positive velocity stationary objects as well as objects moving with a constant velocity

Kevin Sutter

follow
followin
1 answer
1 view

Which statement about electrons and atomic orbitals is NOT true? An electron has the same amount of energy in all orbitals. An orbital can contain a maximum of two electrons. An electron cloud represents all the orbitals in an atom. An atom’s lowest energy level has only one orbital.

Jennifer Patterson

follow
followin
1 answer
0 views

A star that appears to pulsate is called a

Deborah Edwards

follow
followin
1 answer
1 view

Krishne wants to measure the mass and volume of a key. Which tools should she use? a balance and a beaker of water a balance and a meter stick a beaker of water and a ruler a ruler and a meter stick

Tara Andrews

follow
followin
1 answer
0 views

The _____ is the region of the Sun where energy moves through circulating currents of gases. photosphere, corona, core, radiative zone, chromosphere, or convective zone

Theresa Perry

follow
followin
1 answer
0 views

Air is forced through the water to remove gases is called?

Amanda Johnson

follow
followin
1 answer
0 views

T or f Halogens are the basis of all fossil fuels.

Annie Barnes

follow
followin
1 answer
0 views

Proper nutrition improves a person's mental alertness. True or False?

Annie Barnes

follow
followin
1 answer
0 views

Which is an example of natural erosion? ice forming in cracks of rocks acid rain falling on sidewalks waves washing over rocks on the beach water washing away soil in an area with off-road vehicles

Jeremy Wood

follow
followin
1 answer
1 view

Heat can never flow from __________. a. hot to cold b. cold to hot c. liquid to solid d. solid to liquid

Ashley Howard

follow
followin
1 answer
0 views

Which of the following statements is a consequence of the equation E = mc2? A. Energy is released when matter is destroyed. B. Mass and energy are equivalent. C. The law of conservation of energy must be modified to state that mass and energy are conserved in any process. D. all of the above

Jodi Brooks

follow
followin
1 answer
0 views

Depletion to the ozone layer can cause changes to the biogeochemical cycles. True of False

Nicholas Rivera

follow
followin
1 answer
0 views

In order for work to take place Select one: A. the energy present must be related to the movement of the object. B. the force applied must be a balanced force resulting in motion of the object. C. the force applied must cause the movement of the object in the same direction as the force. D. the movement of the object must be the cause of the force.

Tara Andrews

follow
followin
1 answer
0 views

A metal bolt with a mass of 8.50 x 10^-2kg and a temperature of 85.0 degrees Celsius is placed in a container of water. The mass of the water is 0.150 kg, and its temperature is 25.0 degrees Celsius. What is the specific heat capacity of the bolt if the final temperature of the bolt and water is 28.4 degrees Celsius? (Cp.w = 4186 j/k* degree Celsius)

Ashley Howard

follow
followin
1 answer
0 views

Why would you expect sodium (Na) to react strongly with chlorine (Cl)? 1. They both need to lose one electron. 2. They both need to gain one electron. 3. Sodium needs to lose one electron, and chlorine needs to gain one electron. 4. Sodium needs to gain one electron, and chlorine needs to lose one electron.

Kathy Robinson

follow
followin
1 answer
0 views

Which rigid transformation would map abc to edc? a rotation about point b a reflection across the line containing cb a reflection across the line containing ac a rotation about point c?

Amanda Johnson

follow
followin
1 answer
0 views

Newton’s prism experiments showed that white sunlight is made up of ... A-the full electromagnetic spectrum.. B-only blue light.. C-all the colors of the visible spectrum.. D-only the longest wavelengths.

Theresa Perry

follow
followin
1 answer
0 views

Which scenario best describes motion? a toy train in position 4 on a number line a race track that is 100 meters long a ball rolling from point A to point B a student living 150 miles from Chicago

Amanda Johnson

follow
followin
1 answer
0 views

Cultures use shaping in order to __________. A. mold the behavior of people within the culture B. reinforce individuals’ private behaviors C. design appropriate punishments for behavior D. collect information on cultural preferences

Bethany Evans

follow
followin
1 answer
0 views

When a wire is made smaller, the resistance increases. Which happens to the electric current? A) The current decreases. B) The current increases. C) There is no effect on the current

Kevin Sutter

follow
followin
1 answer
0 views

Which of the following statements is a consequence of the equation E = mc2? A Energy is released when matter is destroyed. B Mass and energy are equivalent. C The law of conservation of energy must be modified to state that mass and energy are conserved in any process. D all of the above

Jennifer Patterson

follow
followin
1 answer
0 views

A sea arch is formed through wave erosion. a. True b. False

Cynthia Baker

follow
followin
1 answer
0 views

One degree Celsius indicates the same temperature change as? A. One degree Fahrenheit B. 5/9 degree Fahrenheit C. One Kelvin D. 9/5 Kelvin

Jessie Thompson

follow
followin
1 answer
0 views

A balloon filled with helium gas has an average density of

Rodney Fox

follow
followin
1 answer
3 views

Most of the circuits in your home are a. parallel circuits. b. switch circuits. c. series circuits. d. reversible circuits.

Timothy Norman

follow
followin
1 answer
0 views

If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time.

Megan Page

follow
followin
1 answer
1 view

One consequence of the third law of thermodynamics is that

Ramon Kelly

follow
followin
1 answer
0 views

During a breath, the average human lung expands by about 0.50 l. part a if this expansion occurs against an external pressure of 1.0 atm, how much work (in j) is done during the expansion?

Rodney Fox

follow
followin
1 answer
0 views

For INELASTIC collisions, which of the following statements can be true? Choose all that apply. Momentum is conserved. Momentum is lost. Kinetic energy is lost. Momentum is gained. Kinetic energy is conserved. Kinetic energy is gained.I put a and c and it says it wrong down to my last tries.

Brandon Scott

follow
followin
1 answer
0 views

This example provides a complete scientific description of an object in motion. A. The marble changed position quickly B. The car traveled north C. The marble moved 30 cm north in 6 seconds D. The ball rolled 20 cm in 5 seconds

William Cain

follow
followin
1 answer
0 views

What does apparent movement of a star used to measure its distance from Earth

Eric Morgan

follow
followin
1 answer
0 views

A tariff is another name for

Timothy Norman

follow
followin
1 answer
0 views

Which statements about acceleration are true? check all that apply. a. the si units of acceleration are m/s2. b. for acceleration, you must have a number, a unit, and a direction. c. to calculate acceleration, divide the change in speed by the change in time. d. the symbol for acceleration is .

Tara Andrews

follow
followin
1 answer
0 views

Which would cause the greatest increase in the acceleration of a satellite?a decrease in the radius and the tangential speedan increase in the radius and the tangential speeda decrease in the radius and an increase in the tangential speedan increase in the radius and a decrease in the tangential speed

Ronald Miller

follow
followin
1 answer
0 views

Photons travel outward from a light bulb in

Eric Morgan

follow
followin
1 answer
0 views

When light hits the boundary between two different materials, it can undergo when light hits the boundary between two different materials, it can undergo both reflection and refraction. refraction. reflection?

Ross Pratt

follow
followin
1 answer
0 views

The area of a circular trampoline is 108.94 square feet. What is the radius of the trampoline? Round to the nearest hundredth. A. 10.44 feet B. 5.89 feet C. 34.68 feet D. 3.32 feet

Caroline Campbell

follow
followin
1 answer
0 views

Which liquid is the most viscous? syrup water milk apple juice

Kathy Robinson

follow
followin
1 answer
0 views

When electromagnetic fields interact with charged particles, they become stronger because they gain protons. they become weaker because they gain electrons. electromagnetic force will occur. electromagnetic forces are canceled.

James Washington

follow
followin
1 answer
0 views

What lever has resistance between the axis (fulcrum) and the force (effort)? a. first b. second c. third d. fourth

Kaitlin Dean

follow
followin
1 answer
0 views

An endothermic reaction is one that uses which form of energy?Nuclear FusionElectrical EnergyChemical EngerySound Energy

Jeremy Wood

follow
followin
1 answer
0 views

Niobium has a density of 8.57 g/cm3 and crystallizes with the body-centered cubic unit cell. Calculate the radius of a niobium atom.

Caroline Campbell

follow
followin
1 answer
1 view