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
sveticcg [70]
3 years ago
9

How many neutrons does element X have if it’s atomic number is 27 and it’s mass number is 89 ?

Physics
1 answer:
Elan Coil [88]3 years ago
5 0
<span>element X has 62 neutrons The atomic number of an atom is the number of protons that atom has. And the mass number of an atom is the sum of the number of protons and neutrons an atom has. So to determine the number of neutrons, simply subtract the atomic number from the mass number. So 89 - 27 = 62 So element X has 62 neutrons.</span>
You might be interested in
An object is dropped and falls freely to the ground with an acceleration of g. If it is thrown upward at an angle instead, its a
Savatey [412]

Answer:

g

Explanation:

if an object is thrown upward or at any angle, the acceleration acting on that object is the same as acceleration due to gravity which always acts towards the vertically downwards direction because there is no acceleration or the force acting on the object in horizontal direction.

Thus, the acceleration is same as acceleration due to gravity g.  

5 0
3 years ago
A car is traveling at 24.0 m/s when the driver suddenly applies the brakes, causing the car to slow down with constant accelerat
Elan Coil [88]

Answer:

The answer to your question is : vf = 15.18 m/s

Explanation:

Data

vo = 24 m/s

d = 120 m

vf = ? when d = 60.0 m

Formula

              vf² = vo²  + 2ad

For d =100m

            a = (vf² - vo²) / 2d

            a = (0 -24²) / 2(100)

            a = -576/200

             a = 2.88 m/s²

Now, when d = 60

        vf² = (24)² - 2(2.88)(60)

        vf² = 576 - 345.6

        vf² = 230.4

        vf = 15.18 m/s

4 0
3 years ago
Read 2 more answers
a coin is dropped from the top of a tall building. determine the coin's (a) velocity and (b) displacement after 1.5 sec.
Lilit [14]
1) v = gt = 10*1.5 = 15 m/s
2) r = gt^2 /2 = 10*(1.5)^2 / 2 = 11.25 meters 
8 0
2 years ago
Pancake syrup is an example of a
laila [671]
It is an example of liquid. if thats what you are asking for...
8 0
2 years ago
What is true about energy that is added to a closed system?
Setler [38]

The correct answer is B

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is an important ethical behavior for scientists?
    7·2 answers
  • In which of the following situations has work been done? Select one: a. A weightlifter holds a 50kg barbell over his head for 3
    13·1 answer
  • Neglecting air resistance, when does a struck baseball accelerate downward at a rate of 9.8 m/s2?
    14·2 answers
  • An object with a mass of 70 kilograms is supported at a height 8 meters above the ground. What's the potential energy of the obj
    14·1 answer
  • Point charge μC is located at x =, y = , point charge is located at x = 0m. What are (a)the magnitude and (b)direction of the to
    11·1 answer
  • If the actual mechanical advantage of a machine is 4.2, and the input force is 10.0 N, what is the output force?
    6·1 answer
  • Which is a disadvantage of storing data digitally?
    12·2 answers
  • Select the correct answer.
    10·1 answer
  • The definition of Force
    13·2 answers
  • What is a possible state of an object in the absence of a net force?a.)at restb.)constant velocity c.)zero accelerationd.)all of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!