answer.
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
Savatey
8 days ago
14

Calculate the number of vacancies per cubic meter in gold (au) at 900c. the energy for vacancy formation is 0.98 ev/atom. furthe

rmore, the density and atomic weight for au are 18.63 g/cm3 (at 900c) and 196.9 g/mol, respectively.
Physics
You might be interested in
A sled that has a mass of 8 kg is pulled at a 50 degree angle with a force of 20 N. The force of friction acting on the sled is
Keith_Richards [3271]

A. a<span> = 1.3 m/s^2</span><span>; </span>FN<span> = 63.1 N</span>

4 0
3 months ago
Read 2 more answers
How many electrons must be removed from a neutral, isolated conducting sphere to give it a positive charge of 8.0 x 10 8 C? [Q=n
inna [3103]

The new charge of the ball will amount to 8x10^8C after removing 5x10^27 electrons.

Explanation:

Initially, if the sphere is electrically neutral, its charge stands at 0C.

When an electron with a charge of (-1.6*10^-19 C) is taken away, we effectively add a positive charge, leading to:

1.6*10^-19 C as the sphere's new charge.

For a total of N electrons removed, the sphere's overall charge now becomes:

N*1.6*10^-19 C.

To calculate N when:

N*1.6*10^-19 C = 8.0x 10^8 C.

We find that N is: (8.0/1.6)x10^(8 + 19) = 5x10^27 electrons.

7 0
4 months ago
Other questions:
  • An object moving due to gravity can be described by the motion equation y=y0+v0t−12gt2, where t is time, y is the height at tha
    7·1 answer
  • A square loop of wire, with sides of length a, lies in the first quadrant of the xy plane, with one corner at the origin. In thi
    12·1 answer
  • A person holds a 4.0 kg block at position A shown above on the left, in contact with an uncompressed vertical spring with a spri
    9·1 answer
  • A 1500 kg car enters a section of curved road in the horizontal plane and slows down at a uniform rate from a speed of 100 km/h
    13·1 answer
  • A sled with no initial velocity accelerates at rate of 5.0 m/s^2 down a hill . How long does it take the sled to go 45 m to the
    12·1 answer
  • A 32-kg child decides to make a raft out of empty 1.0-L soda bottles and duct tape. Neglecting the mass of the duct tape and pla
    15·1 answer
  • Which type of element seeks to gain electrons? Question 23 options: A. Non-Metals B. Metalloids C. Isotopes D. Metals E. Noble G
    15·1 answer
  • The city is thinking about starting a program to add a new chemical to the public pool. Before they do, they want to find out if
    15·1 answer
  • You just saw a magazine ad that shows several people having fun at a football game. They're all wearing a specific shoe brand. T
    9·2 answers
  • Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few min
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!