Physics

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

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

Hoover believed that the private sector would pull the United States out of the Depression. true false

Whitney Matthews

follow
followin
1 answer
0 views

An fm radio station broadcasts at a frequency of 101.3 mhz. what is the wavelength?

Whitney Matthews

follow
followin
1 answer
0 views

To what is amplitude related? (1 pointthe amount of energy carried by the wave the maximum displacement from the rest position neither of the above both the first and the second choices above amplitude is related to both the amount of energy carried by the wave and the maximum displacement from the rest position . [ ] [ [ ] ]

Kathy Robinson

follow
followin
1 answer
0 views

Communities of organisms coexist in organized, balanced _____? A-ranges B-territories C-ecosystems D-populations

Jodi Brooks

follow
followin
1 answer
21,873 views

The position of a 2.75×105n training helicopter under test is given by r⃗ =(0.020m/s3)t3i^+(2.2m/s)tj^−(0.060m/s2)t2k^. part a find the net force on the helicopter at t=5.0s.

Justin Parker

follow
followin
1 answer
1 view

An electron is located in an electric field of magnitude 600. newtons per coulomb. what is the magnitude of the electrostatic force acting on the electron?

Timothy Norman

follow
followin
1 answer
1 view

What is the atomic number z of 73li?

Dana Keller

follow
followin
1 answer
0 views

Calculate the displacement of the volleyball in sample problem 2f when teh volleyballs final velocity is 1.1 m/s upward

Melissa Norris

follow
followin
1 answer
2 views

What is a heat pump? Why does it need to put in external work? Help ASAP!

Kaitlin Dean

follow
followin
1 answer
0 views

Which is a challenge that is most likely unique to urban areas? a. power outages b. shortage of water c. population density d. lack of personal time?

Cynthia Baker

follow
followin
1 answer
0 views

Classify the following substance as diamagnetic or paramagnetic based on its magnetic properties. Drag the appropriate items to their respective bins. Download png

Theresa Perry

follow
followin
1 answer
0 views

The bent rod is supported at a, b, and c by smooth journal bearings. the rod is subjected to the force f = 980 n . the bearings are in proper alignment and exert only force reactions on the rod. determine the components of reaction at the bearing a using scalar notation.

Kristi Hammond

follow
followin
1 answer
3 views

The gravitational potential energy of an object Is always measured relative to the

Megan Page

follow
followin
1 answer
0 views

A ______ employs a weight and a wire to detect horizontal movement.

Timothy Norman

follow
followin
1 answer
0 views

For what purpose are goods and services produced in a socialist economy? profits their usefulness to create demand to meet all consumer needs

Rodney Fox

follow
followin
1 answer
0 views

How much heat is required to convert 0.3 kilogram of ice at 0°C to water at the same temperature? A. 100,375 J B. 450,759 J C. 334,584 J D. 167,292 J

Cynthia Baker

follow
followin
1 answer
0 views

A temperature of 200°F is equivalent to approximately A. 232°C. B. 93.3°C. C. 840°C. D. 37.8°C.

Kyle Mckinney

follow
followin
1 answer
0 views

What type of machine is wire cutter pliers?

Justin Parker

follow
followin
1 answer
0 views

Choose the statements that are true about bond strength. A. Bonds formed between two atoms with a large difference in electronegativity tend to be strong. B. Strong bonds are easy to break. C. Stronger bonds release less energy when broken than weak bonds do. D. Longer bonds are weaker.

Alexa Spicer

follow
followin
1 answer
0 views

Which of the following is the best definition of inertia? Objects resist changes in their state of motion. Objects at rest easily start to move. Objects in motion resist changes in acceleration. Objects in motion resist gravity.

Jennifer Patterson

follow
followin
1 answer
0 views

Which of these statements describes experiences or feelings related to anxiety? a. excessive fear of objects or situations b. fear of embarrassment c. constant worry d. all of the above

Caroline Campbell

follow
followin
1 answer
1 view

Which part of the coffee cup calorimeter system could have more heat leaks?

Carlton Burgess

follow
followin
1 answer
1 view

A rocket is launched straight up from the earth's surface at a speed of 1.80×104 m/s .part awhat is its speed when it is very far away from the earth?

Curtis Rhodes

follow
followin
1 answer
0 views

Rooted plants are most likely found in which aquatic zone?

Justin Parker

follow
followin
1 answer
0 views

White lights can sometimes be found on what kind of buoys

Ashley Howard

follow
followin
1 answer
1 view

What gives the gem amethyst it's purplish color?

Kathy Robinson

follow
followin
1 answer
0 views

In a swimming pool, where is the greatest fluid pressure?

Justin Parker

follow
followin
1 answer
0 views

Earth is the third planet from the sun. this placement most affects earth's unique _____and ______ conditions. 1. a.gravityb. temperaturec. moond. defferentation 2. a.atmosphericb. corec. mantled. lithospheric

Amanda Johnson

follow
followin
1 answer
0 views

Basketball is a(n) __________ activity. A. unstructured, competitive, and group B. unstructured, recreational, and solo C. structured, recreational, and group D. structured, competitive, and group

Blair Lewis

follow
followin
1 answer
1 view

25. Which components of the solar system are indicated by orbits 1-9? Name each component in order from the sun, and classify each according to type.

Ashley Howard

follow
followin
1 answer
0 views

What movement of earth is responsible for night and day?

Kristi Hammond

follow
followin
1 answer
0 views

Researchers aboard the H.M.S. Challenger discovered over 4000 new species of marine life. true or false

Amanda Johnson

follow
followin
1 answer
0 views

Which of these are considered an oxidizing mutagenic agent? a. x-rays b. benzopyrene c. gamma rays

Kathy Robinson

follow
followin
1 answer
1 view

Occurs when air traveling over land moves over water, cools down, and travels back over the land

Megan Page

follow
followin
1 answer
0 views

Apparent movement of a star used to measure its distance from Earth

Zach Chandler

follow
followin
1 answer
0 views

The principal limitation of wind power is unpredictability.True or False

Heather Maxwell

follow
followin
1 answer
1 view

Which of the following statements about covalent bonds is false? a. The resulting compound is a poor conductor of electricity. b. The resulting compound can be dissolved in water. c. The resulting compound has a dull appearance. d. The bond can be formed only between nonmetals.

Donald Ward

follow
followin
1 answer
0 views

You can use the curved part of a spoon as a mirror because it light.

Jennifer Patterson

follow
followin
1 answer
1 view

Without the force of friction, people would not be able to walk.

Deborah Edwards

follow
followin
1 answer
0 views

What do electric forces between charges depend on? a. the quantity of charge involved b. how far apart the charges are. c. both a. and b. d. none of the above

Amanda Johnson

follow
followin
1 answer
1 view

The continental crust has the average composition of _____.

Jodi Brooks

follow
followin
1 answer
0 views

It is best to say that efficient plumbing _______. a. reduces water pollution by using less water b. reduces water pollution by using cleaner water c. increases water pollution by using more water

Kristi Hammond

follow
followin
1 answer
0 views

As Chelsea removes her clothes from the dryer, she sees sparks, which are examples of ________________. A.) Conduction B.) Induction C.) Static discharge D.) Static Electricity

Kaitlin Dean

follow
followin
1 answer
1 view

. Question: 23 of 24:. Which statement is true regarding DC current?. Select one of the options below as your answer:. . A.. The electrons move back and forth.. B.. There can only be one voltage supplied.. C.. A high voltage current can be transformed into a low voltage current.. D.. A low voltage current can be transformed into a high voltage current.. E.. This is what is sent from the power plants to your home..

Rodney Fox

follow
followin
1 answer
0 views

List two ways in which heterogeneous mixtures differ from elements

Jessie Thompson

follow
followin
1 answer
0 views

When an earthquake occurs, s waves are the first seismic waves to arrive at a given location.?

Victoria Fowler

follow
followin
1 answer
0 views