Physics

Estimate the speed of the Moon relative to the center of the Earth in m/s. 1.less than 0.003 ...

Estimate the speed of the Moon relative to the center of the Earth in m/s. 1.less than 0.003 ...

Estimate the speed of the Moon relative to the center of the Earth in m/s.
  1.less than 0.003
  2.between 0.003 and 0.03
  3.between 0.03 and 0.3
  4.between 0.3 and 3
  5.between 3 and 30
  6.between 30 and 300
 

heyoplshelp   33   2 Replies

heyoplshelp

Which of the following represent reasonable order-of-magnitude estimates for your age in seconds? ...

Which of the following represent reasonable order-of-magnitude estimates for your age in seconds? ...

Which of the following represent reasonable order-of-magnitude estimates for your age in seconds?
   
  1. 109 s
  2. 1011 s
  3. 107 s
  4. 105 s


[Qu

Sqwill23   33   2 Replies

Sqwill23

A particle with charge q is located inside a cubical gaussian surface. No other charges are nearby. ...

A particle with charge q is located inside a cubical gaussian surface. No other charges are nearby. ...

A particle with charge q is located inside a cubical gaussian surface. No other charges are nearby. If the particle is at the center of the cube, what is the flux through each one of the faces of the cube?
  1. 0
  2. q/20
  3. q/6 0

xoxololo   33   2 Replies

xoxololo

In a problem using energy considerations to solve for the speed of a ball thrown from the top of a ...

In a problem using energy considerations to solve for the speed of a ball thrown from the top of a ...

In a problem using energy considerations to solve for the speed of a ball thrown from the top of a building when it strikes the ground below, where should the potential energy have its zero value?
 a. It should be at the level from where the ba

yadwinder   33   1 Reply

jekoof

Karl Schwarzschild did all but one of the following during his relatively short life. Which one?

Karl Schwarzschild did all but one of the following during his relatively short life. Which one?

Karl Schwarzschild did all but one of the following during his relatively short life. Which one?
  a. Was a professor at German universities.
  b. Served in World War II for Germany in Russia.
  c. Found the radius of a collapsed

CB96   33   2 Replies

CB96

A body is oscillating up and down at the end of a spring. Let's consider when the body is at the ...

A body is oscillating up and down at the end of a spring. Let's consider when the body is at the ...

A body is oscillating up and down at the end of a spring. Let's consider when the body is at the top of its up and down motion The displacement vector from the equilibrium position has its largest magnitude.
  Indicate whether the statement is

queeny   33   1 Reply

oksanamad

The work you do is 4 J. Indicate whether the statement is true or ...

The work you do is 4 J. Indicate whether the statement is true or ...

The work you do is 4 J.
  Indicate whether the statement is true or false


[Ques. 2] You carry a 20 N box 5 m horizontally across a room. The work you do is 100 N-m.
  Indicate whether the statemen

VictoriaLenea   33   2 Replies

VictoriaLenea

Because of the equivalence of mass and energy, an electron and a positron, which are two massive ...

Because of the equivalence of mass and energy, an electron and a positron, which are two massive ...

Because of the equivalence of mass and energy, an electron and a positron, which are two massive particles, can annihilate when they come together to produce two photons, which have no mass.
  Indicate whether the statement is true or false

Armenb   33   2 Replies

Armenb

An iceboat is traveling in a circle on the ice. Halfway around the circle the sail and the steering ...

An iceboat is traveling in a circle on the ice. Halfway around the circle the sail and the steering ...

An iceboat is traveling in a circle on the ice. Halfway around the circle the sail and the steering mechanism fall off the boat. Which statement is correct?
 a. The boat will continue traveling in the circle because there is no friction.
&

mbhound   33   1 Reply

beats51

If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about:

If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about:

If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about:
 a. 6 b.12 c.18 d.24 e.36 amu.

jeanettedavis84   33   1 Reply

jester1997!

A 30-kg child sitting 5.0 m from the center of a merry-go-round has a constant speed of 5.0 m/s. ...

A 30-kg child sitting 5.0 m from the center of a merry-go-round has a constant speed of 5.0 m/s. ...

A 30-kg child sitting 5.0 m from the center of a merry-go-round has a constant speed of 5.0 m/s. While she remains seated in the same spot and travels in a circle, the work the seat performs on her in one complete rotation is
 a. 0 J.
&nbs

bkm1   33   1 Reply

brecool9

In an inertia balance, a body supported against gravity executes simple harmonic oscillations in a ...

In an inertia balance, a body supported against gravity executes simple harmonic oscillations in a ...

In an inertia balance, a body supported against gravity executes simple harmonic oscillations in a horizontal plane under the action of a set of springs. If a 1.00 kg body vibrates at 1.00 Hz, a 2.00 kg body will vibrate at
 a. 0.500 Hz.
&

bwebb03   33   1 Reply

shaebugg

The variation in the pressure of helium gas, measured from its equilibrium value, is given by DP = ...

The variation in the pressure of helium gas, measured from its equilibrium value, is given by DP = ...

The variation in the pressure of helium gas, measured from its equilibrium value, is given by DP = 2.9  10-5 cos (6.20x - 3 000t) where x and t have units m and s. Determine the speed (in m/s) of the wave.
 a. 1 515
  b. 153

bwebb03   33   2 Replies

bwebb03

Which statement below is NOT an assumption made in the molecular model of an ideal gas?

Which statement below is NOT an assumption made in the molecular model of an ideal gas?

Which statement below is NOT an assumption made in the molecular model of an ideal gas?
 a. The average separation between molecules is large compared with the dimensions of the molecules.
  b. The molecules undergo inelastic collisio

darrellsia   33   1 Reply

jjacksonmia

Air expands adiabatically (no heat in, no heat out) from T = 300 K and P = 100 atm to a final ...

Air expands adiabatically (no heat in, no heat out) from T = 300 K and P = 100 atm to a final ...

Air expands adiabatically (no heat in, no heat out) from T = 300 K and P = 100 atm to a final pressure of 1 atm. Treat the gas as ideal with g = 1.4, and determine the final temperature. Compare your result to the boiling points of nitrogen (77.4 K)

LuisJrB96   33   2 Replies

LuisJrB96

Charges q and Q are placed on the x axis at x = 0 and x = 2.0 m, respectively. If q = -40 pC and Q = ...

Charges q and Q are placed on the x axis at x = 0 and x = 2.0 m, respectively. If q = -40 pC and Q = ...

Charges q and Q are placed on the x axis at x = 0 and x = 2.0 m, respectively. If q = -40 pC and Q = +30 pC, determine the net flux through a spherical surface (radius = 1.0 m) centered on the origin.
 a. -9.6 N  m2/C
  b. -6.8 N

Breionna   33   1 Reply

royboy1

An electron is released from rest at the negative plate of a parallel plate capacitor. If the ...

An electron is released from rest at the negative plate of a parallel plate capacitor. If the ...

An electron is released from rest at the negative plate of a parallel plate capacitor. If the distance between the plates is 5 mm and the potential difference across the plates is 5 V, with what velocity does the electron hit the positive plate? (me

Flognog   33   2 Replies

Flognog

Suppose we use optical radiation (l = 500 nm) to determine the position of the electron to within ...

Suppose we use optical radiation (l = 500 nm) to determine the position of the electron to within ...

Suppose we use optical radiation (l = 500 nm) to determine the position of the electron to within the wavelength of the light. What will be the resulting uncertainty in the electron's velocity?

Lesley0479   33   1 Reply

gauze

What information is available that can allow people to give quantitative measures of climate in ...

What information is available that can allow people to give quantitative measures of climate in ...

What information is available that can allow people to give quantitative measures of climate in earlier times? Give examples.
 
  What will be an ideal response?

stellarelli   33   1 Reply

heypeterman

If you eat a salmon that had fed on smaller fish, which in turn had fed on plants, you would be a ...

If you eat a salmon that had fed on smaller fish, which in turn had fed on plants, you would be a ...

If you eat a salmon that had fed on smaller fish, which in turn had fed on plants, you would be a ____________ consumer.
 
  a. primary
  b. secondary
  c. tertiary
  d. tropic
  e. pyramid

QiTian   33   1 Reply

lizziemjordan

Rapidly expanding population effectively strangles most efforts to provide adequate

Rapidly expanding population effectively strangles most efforts to provide adequate

Rapidly expanding population effectively strangles most efforts to provide adequate
 
  a. education.
  b. nutrition.
  c. health care.
  d. shelter.
  e. amounts of all the amenities above

kay20213   33   1 Reply

pm_me_ur_stands

Raising the level of economic opportunity in the underdeveloped countries and lowering it in the U. ...

Raising the level of economic opportunity in the underdeveloped countries and lowering it in the U. ...

Raising the level of economic opportunity in the underdeveloped countries and lowering it in the U. S. until economic opportunity is everywhere the same would decrease immigration to the U. S.
 
  What will be an ideal response?

Argentina   33   1 Reply

andreamorenct

Why is the effect of neutrons on materials such as steel of concern in the design of fusion reactors ...

Why is the effect of neutrons on materials such as steel of concern in the design of fusion reactors ...

Why is the effect of neutrons on materials such as steel of concern in the design of fusion reactors using the deuterium-tritium reaction?
 
  What will be an ideal response?

jco177   33   1 Reply

jajikim

Rapidly increasing demands for natural resources, employment, education, and social services make ...

Rapidly increasing demands for natural resources, employment, education, and social services make ...

Rapidly increasing demands for natural resources, employment, education, and social services make any attempts to protect natural resources and improve living standards very difficult.
 
  What will be an ideal response?

jerhughes   33   1 Reply

joshbauer

Explain how a black surface such as the Solar Two tower can appear white.

Explain how a black surface such as the Solar Two tower can appear white.

Explain how a black surface such as the Solar Two tower can appear white.
 
  What will be an ideal response?

mamafay   33   1 Reply

TSparkman10

How can OTEC installations provide fresh water as well as electricity? Explain. What will be an ...

How can OTEC installations provide fresh water as well as electricity? Explain. What will be an ...

How can OTEC installations provide fresh water as well as electricity? Explain.
 
  What will be an ideal response?

bwebb03   33   1 Reply

vonda_smith

Is it good or bad that many materials must be imported to run the economy of any country? What ...

Is it good or bad that many materials must be imported to run the economy of any country? What ...

Is it good or bad that many materials must be imported to run the economy of any country?
 
  What will be an ideal response?

Abisf   33   1 Reply

ktlyn_16

If a lake is about an eighth covered by water hyacinths when you first look at it, and completely ...

If a lake is about an eighth covered by water hyacinths when you first look at it, and completely ...

If a lake is about an eighth covered by water hyacinths when you first look at it, and completely covered 3 weeks later, what is the water hyacinth doubling time?
 
  a. 0.25 week
  b. 0.5 week
  c. 1 week

QiTian   33   1 Reply

timmyisbae

We would expect the curve for number of can openers sold vs. time to be a logistic curve. What ...

We would expect the curve for number of can openers sold vs. time to be a logistic curve. What ...

We would expect the curve for number of can openers sold vs. time to be a logistic curve.
 
  What will be an ideal response?

stellarelli   33   1 Reply

TSparkman10

Gases in equilibrium in the atmosphere are not subject to rapid (year-to-year) fluctuations. What ...

Gases in equilibrium in the atmosphere are not subject to rapid (year-to-year) fluctuations. What ...

Gases in equilibrium in the atmosphere are not subject to rapid (year-to-year) fluctuations.
 
  What will be an ideal response?

darrellsia   33   1 Reply

KaysonMitchell

Many terrestrial weather patterns have been observed and named, for example, the Southern ...

Many terrestrial weather patterns have been observed and named, for example, the Southern ...

Many terrestrial weather patterns have been observed and named, for example, the Southern Oscillation, the Arctic Oscillation/North Atlantic Oscillation, the Pacific Decadal Oscillation, and so on.
 
  How are these indices usefu

Lesley0479   33   1 Reply

dianardo

What is it that disturbs the circular orbits of the cometary bodies in the Oort cloud, making them ...

What is it that disturbs the circular orbits of the cometary bodies in the Oort cloud, making them ...

What is it that disturbs the circular orbits of the cometary bodies in the Oort cloud, making them begin to fall in towards the Sun and the inner solar system?

(a)   The combined gravitational forces of the Sun and a nearby star.
(b)   Th

doit_the_clown   33   1 Reply

papachulo

A person is pushing (and slightly squashing) a basketball against a wall. According to Newton's ...

A person is pushing (and slightly squashing) a basketball against a wall. According to Newton's ...

A person is pushing (and slightly squashing) a basketball against a wall. According to Newton's Third Law, the reaction force for the force that the hand exerts on the basketball is

(a)   the force which the basketball exerts on the han

doit_the_clown   33   1 Reply

hyponotica

A bound quark-antiquark pair is called a

A bound quark-antiquark pair is called a

A bound quark-antiquark pair is called a

▸ proton.

▸ neutron.

▸ meson.

▸ baryon.

▸ lepton.

SunnieeCA   32   1 Reply

vicky12345

What is the symbol for the nuclide with 46 protons and 92 neutrons?

What is the symbol for the nuclide with 46 protons and 92 neutrons?

[html]What is the symbol for the nuclide with 46 protons and 92 neutrons?

▸

aramo023   32   1 Reply

duhello

What is the mass of 25.0 mCi of technetium-99m , which has a half-life of 6.00 h?

What is the mass of 25.0 mCi of technetium-99m , which has a half-life of 6.00 h?

[html]What is the mass of 25.0 mCi of technetium-99m

Tonyt   32   1 Reply

brassgod

What is the binding energy of an alpha particle?

What is the binding energy of an alpha particle?

What is the binding energy of an alpha particle?

▸ 2.20 MeV

▸ 50.0 MeV

▸ 28.3 MeV

▸ 21.2 MeV

biancawoods   32   1 Reply

eap8

The symbol

The symbol

[html]The symbol

JZ240   32   1 Reply

Napoukah

The quantum-mechanical process by which an alpha particle makes it through the potential barrier ...

The quantum-mechanical process by which an alpha particle makes it through the potential barrier ...

[html]The quantum-mechanical process by which an alpha particle makes it through the potential barrier holding it in the nucleus is called

▸ leaping.

▸ tunneling.

▸ transmission.

▸ fission.

▸ transportation.[/h

npdtan92   32   1 Reply

shichihenge7

A situation known as "population inversion" is needed for lasing action. What does "population ...

A situation known as "population inversion" is needed for lasing action. What does "population ...

[html]A situation known as "population inversion" is needed for lasing action. What does "population inversion" mean?

▸ Electrons in the ms = 1/2 state switch to −1/2 and vice versa.

▸ Excited atoms must be at the top of the laser

kickergb40   32   1 Reply

danterich