Physics

A radio wave and a visible light wave differ only in

A radio wave and a visible light wave differ only in

A radio wave and a visible light wave differ only in
A) frequency.
B) energy per photon.
C) both of these
D) none of these

083055   76   1 Reply

amtw222

The spectral lines are more distinct when viewed in a mercury vapor lamp under

The spectral lines are more distinct when viewed in a mercury vapor lamp under

The spectral lines are more distinct when viewed in a mercury vapor lamp under
A) high pressure.
B) low pressure.
C) same for each

083055   74   1 Reply

gugu123

Radiation dosages based on potential damage is in

Radiation dosages based on potential damage is in

Radiation dosages based on potential damage is in
A) rads.
B) rems.
C) joules.
D) none of the above

083055   45   1 Reply

Bwz1999

In the fissioning of uranium, a chain reaction is caused by

In the fissioning of uranium, a chain reaction is caused by

In the fissioning of uranium, a chain reaction is caused by
A) the kinetic energy of the decay products.
B) ejected neutrons.
C) alpha particles.
D) none of the above

083055   62   1 Reply

MaargarytaSiz

When U-235 undergoes fission, the total number of protons in the fragments is

When U-235 undergoes fission, the total number of protons in the fragments is

When U-235 undergoes fission, the total number of protons in the fragments is
A) 90.
B) 91.
C) 92.
D) 93.
E) none of the above

083055   32   1 Reply

RichardSoags

Consider a deer that runs from point A to point B. The distance the deer runs can be greater than ...

Consider a deer that runs from point A to point B. The distance the deer runs can be greater than ...

Consider a deer that runs from point A to point B. The distance the deer runs can be greater than the magnitude of its displacement, but the magnitude of the displacement can never be greater than the distance it runs.

• True

• False

083055   43   1 Reply

Noochie

What mass of 14C, with a half-life of 5730 y, do you need to provide a decay rate of The mass of 14C ...

What mass of 14C, with a half-life of 5730 y, do you need to provide a decay rate of The mass of 14C ...

[html]What mass of 14C, with a half-life of 5730 y, do you need to provide a decay rate of

083055   80   1 Reply

erickgoking

A 5.0-V battery storing 43.0 kJ of energy supplies of current to a circuit. How much energy does the ...

A 5.0-V battery storing 43.0 kJ of energy supplies of current to a circuit. How much energy does the ...

[html]A 5.0-V battery storing 43.0 kJ of energy supplies

083055   77   1 Reply

tray5

In the circuit shown in the figure, R1 = 10 , R2 = 12 , R3 = 20 , V1 = 1.0 V, V2 = 7.0 V, and the ...

In the circuit shown in the figure, R1 = 10 , R2 = 12 , R3 = 20 , V1 = 1.0 V, V2 = 7.0 V, and the ...

[html]In the circuit shown in the figure, R1 = 10 Ω, R2 = 12 Ω,

083055   176   1 Reply

spsjr15

As shown in the figure, a large round loop of 269 turns and radius 67.0 cm carries a current of I = ...

As shown in the figure, a large round loop of 269 turns and radius 67.0 cm carries a current of I = ...

[html]As shown in the figure, a large round loop of 269 turns and radius 67.0 cm carries a current of I =

083055   133   1 Reply

Sunni_rae

In the figure, which of the phasor diagrams represents a series RLC circuit driven at resonance?

In the figure, which of the phasor diagrams represents a series RLC circuit driven at resonance?

[html]In the figure, which of the phasor diagrams represents a series RLC circuit driven at resonance?

083055   93   1 Reply

saltyfishzz

In the figure, determine the character of the collision. The masses of the blocks, and the ...

In the figure, determine the character of the collision. The masses of the blocks, and the ...

[html]In the figure, determine the character of the collision. The masses of the blocks, and the velocities before and after, are shown.  The collision is

083055   63   1 Reply

delta_1103

The figure shows a famous roller coaster ride. You can ignore friction. If the roller coaster leaves ...

The figure shows a famous roller coaster ride. You can ignore friction. If the roller coaster leaves ...

[html]The figure shows a famous roller coaster ride. You can ignore friction. If the roller coaster leaves point Q from rest, what is its speed at the top of the 25-m peak (point S)?

083055   164   1 Reply

lakeisha

A pressurized cylindrical tank, 5.0 m in diameter, contains water that emerges from the pipe at ...

A pressurized cylindrical tank, 5.0 m in diameter, contains water that emerges from the pipe at ...

[html]A pressurized cylindrical tank, 5.0 m in diameter, contains water that emerges from the pipe at point C with a speed of

083055   115   1 Reply

Bkalid

At the same moment, one rock is dropped and one is thrown downward with an initial velocity of from ...

At the same moment, one rock is dropped and one is thrown downward with an initial velocity of from ...

[html]At the same moment, one rock is dropped and one is thrown downward with an initial velocity of

083055   100   1 Reply

amanda42898

A circuit consists of N resistors, all of resistance R, connected as shown below. A potential ...

A circuit consists of N resistors, all of resistance R, connected as shown below. A potential ...

A circuit consists of N resistors, all of resistance R, connected as shown below. A potential difference V is applied to the circuit. The equivalent resistance of the circuit is
 
   

123123456   57   2 Replies

123123456

When sulfur-35 (Z = 16) decays to chlorine-35 (Z = 17), a particle emitted is a(n)

When sulfur-35 (Z = 16) decays to chlorine-35 (Z = 17), a particle emitted is a(n)

When sulfur-35 (Z = 16) decays to chlorine-35 (Z = 17), a particle emitted is a(n)
 a. alpha particle
  b. beta particle
  c. gamma ray
  d. x ray
  e. none of the above


[Ques. 2] Wh

123123456   70   3 Replies

mburthay

The magnetic force on a charged particle moving at a constant speed in a uniform magnetic field will ...

The magnetic force on a charged particle moving at a constant speed in a uniform magnetic field will ...

The magnetic force on a charged particle moving at a constant speed in a uniform magnetic field will be halved when the angle between the velocity of the particle and the direction of the magnetic field changes from 25.0 to
 a. 50.0.
  c.

123123456   103   1 Reply

Kellivycital

Two baseballs are released at the same time. One is dropped from rest and the other is given an ...

Two baseballs are released at the same time. One is dropped from rest and the other is given an ...

Two baseballs are released at the same time. One is dropped from rest and the other is given an initial horizontal velocity. Which of the following is not true? Ignore atmospheric drag.
 a. Both baseballs hit the ground at the same time.
 

123123456   72   3 Replies

Khushhal Farooq

An ore car of mass 4 000 kg starts from rest and rolls downhill on tracks from a mine. A spring with ...

An ore car of mass 4 000 kg starts from rest and rolls downhill on tracks from a mine. A spring with ...

An ore car of mass 4 000 kg starts from rest and rolls downhill on tracks from a mine. A spring with k = 400 000 N/m is located at the end of the tracks. At the spring's maximum compression, the car is at an elevation 10 m lower than its elevation at

123123456   44   3 Replies

nsc95

The sedimentary rock known as ______________ consists of deposits of calcium carbonate (calcite). ...

The sedimentary rock known as ______________ consists of deposits of calcium carbonate (calcite). ...

The sedimentary rock known as ______________ consists of deposits of calcium carbonate (calcite).
 Fill in the blank(s) with correct word


[Ques. 2] Rocks formed from consolidated sediment deposited in l

123123456   73   1 Reply

jamestopranked

Ice is less dense than liquid water because of ______________ bonding. (Fill in the blank)

Ice is less dense than liquid water because of ______________ bonding. (Fill in the blank)

Ice is less dense than liquid water because of ______________ bonding.
 Fill in the blank(s) with correct word


[Ques. 2] The metamorphosis of limestone leads to
 a. marble.
  b. slate.
 

123123456   61   2 Replies

123123456

A sound with a frequency of 1000 Hz is in the ______________ region of the sound spectrum.

A sound with a frequency of 1000 Hz is in the ______________ region of the sound spectrum.

A sound with a frequency of 1000 Hz is in the ______________ region of the sound spectrum.
 a. infrasonic
  b. ultrasonic
  c. audible
  d. visible


[Ques. 2] In comparing vibrational and

123123456   101   1 Reply

Khushhal Farooq

How many degrees of freedom does a diatomic molecule have?

How many degrees of freedom does a diatomic molecule have?

How many degrees of freedom does a diatomic molecule have?
 a. 3
  b. 6
  c. 5
  d. 7
  e. 9


[Ques. 2] The calendar we presently use is the ______________ calendar.
 Fill in th

123123456   62   3 Replies

cats123

Draw the two structural formulas for the molecular formula ...

Draw the two structural formulas for the molecular formula ...

Draw the two structural formulas for the molecular formula C2H7N.


[Ques. 2] A student weighing 700 N climbs a flight of stairs 5.0 m high in 10 s. What power was required?


[Ques.

123123456   65   3 Replies

Hansolo18

In the metric mks system of units, the letter k stands for ______________. (Fill in the blank)

In the metric mks system of units, the letter k stands for ______________. (Fill in the blank)

In the metric mks system of units, the letter k stands for ______________.
 Fill in the blank(s) with correct word


[Ques. 2] An object's mass would be the same on Earth and on the Moon, but its ________

123123456   48   2 Replies

123123456

A chair is placed on a rug. Then a book is placed on the chair. The floor exerts a normal force

A chair is placed on a rug. Then a book is placed on the chair. The floor exerts a normal force

A chair is placed on a rug. Then a book is placed on the chair. The floor exerts a normal force
 a. on all three.
  b. only on the book.
  c. only on the rug.
  d. upwards on the rug and downwards on the chair.
  e. only on

123123456   78   2 Replies

123123456

If the object distance (s) is less than the focal length (f) then the image is ____________. Fill ...

If the object distance (s) is less than the focal length (f) then the image is ____________. Fill ...

If the object distance (s) is less than the focal length (f) then the image is ____________.
 Fill in the blank(s) with correct word


[Ques. 2] The two most common types of poor eyesight are the result o

123123456   31   2 Replies

123123456

What does IR stand for?

What does IR stand for?

What does IR stand for?
 a. ultraviolet b. muon neutrino
  c. high frequency d. infrared


[Ques. 2] The cosmic background radiation
 a. has a blackbody spectrum.
  b. has its peak emissio

123123456   47   3 Replies

bcoleman2353

A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.If ...

A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.If ...

A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.If two slide projectors are connected in parallel across the same 120-volt source, the current drawn from the source is __________.
 Fill in the bla

123123456   98   2 Replies

123123456

A rescue plane flying horizontally at spots a survivor in the ocean directly below and releases an ...

A rescue plane flying horizontally at spots a survivor in the ocean directly below and releases an ...

[html]A rescue plane flying horizontally at

123isme   157   3 Replies

gbkendall

The figure shows two forces, each of magnitude 4.6 N, acting on an object. The angle between these ...

The figure shows two forces, each of magnitude 4.6 N, acting on an object. The angle between these ...

[html]The figure shows two forces, each of magnitude 4.6 N, acting on an object. The angle between these forces is 40°,

123isme   384   1 Reply

ric

When you look into a pool of water, the depth looks less than it actually is because of

When you look into a pool of water, the depth looks less than it actually is because of

When you look into a pool of water, the depth looks less than it actually is because of
 a. interference
  b. diffraction
  c. specular reflection
  d. refraction
  e. polarization


[Ques. 2]

123kduncan   81   2 Replies

123kduncan

Which of these waves will diffract the most when passing through a 20 cm wide opening in a barrier? ...

Which of these waves will diffract the most when passing through a 20 cm wide opening in a barrier? ...

Which of these waves will diffract the most when passing through a 20 cm wide opening in a barrier?
 a. a wave with a wavelength of 25 cm
  b. a wave with a wavelength of 2 cm
  c. a wave with a wavelength of 0.05 cm
  d. none of

123kduncan   102   1 Reply

Aopok

Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a ...

Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a ...

Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t. The quantity 1/2 mv2 is
 a. the kinetic energy of the crate
  b. the potential energy of the crat

123kduncan   102   3 Replies

cats123

When does kinetic friction occur in trying to push a heavy object?

When does kinetic friction occur in trying to push a heavy object?

When does kinetic friction occur in trying to push a heavy object?
 a. When the object is still.
  b. When the force you apply is smaller than the maximum static frictional force.
  c. Just before enough force is applied to move the o

123kduncan   59   3 Replies

paulina3811

A ball thrown vertically upward, at the top of its path (just before it starts to fall) has:

A ball thrown vertically upward, at the top of its path (just before it starts to fall) has:

A ball thrown vertically upward, at the top of its path (just before it starts to fall) has:
 a. an instantaneous speed of zero.
  b. the same instantaneous speed it had throughout its trajectory.
  c. gone as low as it is going to go

123kduncan   97   2 Replies

123kduncan

Four point charges are on the rim of a circle. The charges are (in mC) +0.50, +3.0, -1.0, -0.50 . If ...

Four point charges are on the rim of a circle. The charges are (in mC) +0.50, +3.0, -1.0, -0.50 . If ...

Four point charges are on the rim of a circle. The charges are (in mC) +0.50, +3.0, -1.0, -0.50 . If the electrical potential at the circle's center due to the +0.5 charge alone is 4.5  104 V, what is the total potential at the center due to the four

123kduncan   311   3 Replies

hsdsad

The figure shows the distance versus time graph of an object. The velocity of the moving object ...

The figure shows the distance versus time graph of an object. The velocity of the moving object ...

The figure shows the distance versus time graph of an object.
 

123kduncan   133   2 Replies

123kduncan

The oldest fossil records date back about

The oldest fossil records date back about

The oldest fossil records date back about
  a) 100 years.
  b) 6 thousand years.
  c) 2 million years.
  d) 3500 million years.


[Ques. 2] An astronaut tosses a ball out in space where grav

123kduncan   75   2 Replies

123kduncan