1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paraphin [41]
3 years ago
7

The conventional relatively small unit for work(ignoring time) such as raising one pound one foot is the foot-pound(ft. lb.). Si

milarly, the joule is the unit of work that equates to _____ ft. lb., or the work to raise ______ pounds one foot or raising one pound _____ fee
Physics
1 answer:
Lelechka [254]3 years ago
6 0

Answer:

1 joule = 0.737 foot-pound

Joule is the unit of work.

1 J = 1 N·m

In SI units

1 J = 1 kg· m/s²

0.737 foot-pound is the amount of work to raise 0.737 pounds one foot or raising one pound to 0.737 ft.

You might be interested in
g A high-energy photon turns into and electron and a positron. (A positron has exactly the same mass as the electron, but opposi
yawa3891 [41]

Answer:

2 m = E / c^2      where m is mass of electron

E = h v     where v is the frequency ( nu) of the incident photon

E = h c / y      where y is the incident wavelength (lambda)

2 m = h / (c y)

y = h / (2 m c)      wavelength required

y = 6.62 * 10E-34 / (2 * 9.1 * 10E-31 * 3 * 10E8)  m

y = 3.31 / 27.3 E-11 m

y = 1.21 E -12 m   = .0121 Angstrom units

5 0
3 years ago
During a field experiment about speed, a scientist created the chart above. The chart shows distance and time measurements for a
BaLLatris [955]

Answer:

yes

Explanation:

its not a good thing for the rest of your life but you have a PS4

6 0
2 years ago
The electric potential difference across the membrane of a body cell is 0.070 V (higher on the outside than on the inside). The
12345 [234]

Answer:

The electric field is 8.75 \times 10^{6}~v~m^{-1} and the ditection is from outer to inner side of the membrane.

Explanation:

We know the electric field (\vec{E}) is given by \vec{E} = - \nabla V, 'V' being the potential.

In 1-D, it can be written as

E=\dfrac{V}{d}

where 'd' is the separation of space in between the potential difference is created.

Given, V = 0.070~V~ and the thickness of the cell membrane is d = 8.0 \times 10^{-9}~m.

Therefore the created electric field through the cell membrane is

E = \dfrac{0.07~V}{8 \times 10^{-9}~m} = 8.75 \times 10^{6}~m~s^{-1}

5 0
3 years ago
A period of the periodic table ends when the highest energy level of an elements atoms has __ electrons
never [62]
This is dependent on how many shells/layers/energy levels the element has. The first shell can only hold 2 electrons however every shell beyond that can hold 8 electrons
8 0
3 years ago
What can always be said about a negatively-charged ion?
KiRa [710]

Answer: A negatively-charged ion always has more electrons than protons

Explanation:

First, we know that the elementary negative charge is the electron, while the positive one is the proton. Such that both have the same charge in magnitude, but a different sign. Such that if we have the same number of electrons and protons in an atom, the charge of this atom will be neutral.

And an ion is an atom with a different number of electrons and protons, so the charge of the atom is not neutral.

Then if we have a negatively-charged ion, the charge of this atom is negative. Then we must have a larger number of electrons (the negative ones) than protons (the positive ones)

Then the correct option is:

A negatively-charged ion always has more electrons than protons

5 0
3 years ago
Other questions:
  • Why does increasing the number trials increase confidence in the results of the experiment?
    9·2 answers
  • Which is not an era of the Phanerozoic eon
    14·1 answer
  • I need to know question 4
    5·1 answer
  • Work & Power Problems
    14·1 answer
  • Do you think potassium is more or less<br> reactive then sodium?
    14·2 answers
  • How does the mitochondria help to maintain homeostasis for the cell?
    11·1 answer
  • A small object with mass 1.30 kg is mounted on one end of arod
    10·1 answer
  • Imagine you are on an airplane. Your plane has flown from 30 degrees North to 42 degrees North. How far have you flown?
    8·1 answer
  • What is the velocity of a Usain Bolt if he runs 200 m in 10 seconds?
    11·1 answer
  • 3. Two fans blow at 5 ms^-1 in a easterly direction and 8ms^-1 in a Northerly
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!