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
erik [133]
3 years ago
7

How many neutrons does element x have if it's atomic number is 27 and it's mass number is 74

Physics
1 answer:
Makovka662 [10]3 years ago
3 0

Atomic number=Proton count

Atomic mass=Proton count+ neutron count

Neuton Count=Atomic mass-Proton count

Proton count=Atomic number=27

Mass number=74

Neuton count= 74-27=47

You might be interested in
True / False
devlian [24]
1. True
2. True
3. True
4. True
5. False
6. False
7. True
8 0
2 years ago
Read 2 more answers
A cat with a mass of 4.50 kilograms sits on a ledge 0.800 meters above the ground. If it jumps to the ground, how much kinetic e
Slav-nsk [51]
Answer:

The cat will have <span>36J</span> of kinetic energy.

5 0
3 years ago
Read 2 more answers
Solutions with ions that react with acids or bases to lessen their effects are fubrefs
Softa [21]

Answer:

Buffers

Explanation:

A buffer solution is a solution containing weak acids and their salts or weak bases and their salts.

A buffer solution is an equilibrium system that resists changes in pH or pOH when a small amount of an acid or base is added hence it is a solution of fairly constant pH value.

4 0
3 years ago
According to Einstein's theory of relativity, what happens to the mass of an object as the object approaches the
Anuta_ua [19.1K]

Answer:

B

Explanation:

please mark me brainiest

8 0
3 years ago
Read 2 more answers
A series circuit has two 10-ohm bulb is added in a series. Technician A says that the three bulbs will be dimmer than when only
ANTONII [103]

Answer:

Technician  A  is right. The situation will happens even with only two bulbs in series

Explanation:

We must take into account that

1.- All electric device need its nominal voltage to operate

2.-Any and all electric device means an electric load for the source in terms of equation that means any device will implies a drop voltage of V = I*R ( I the flows current and R  the resistance of the device)

3.-Nominal voltage for bulbs are specify for houses voltages you find between fase and neutral wires for instance in Venezuela 120 (v).

4.-In a imaginary circuit of only one bulb, the nominal voltage will be applied and the bulb will operates correctly, but when you add another bulb (in series) the nominal voltage will split  between the two bulbs ( we  could find a situation such as the first bulb work properly but the second one does not). The voltage split according to Ohms law (in such way that the sum of voltage between the terminal of the first bulb plus the voltage at terminals of the second one are equal to nominal voltage.

For that reason all the bulbs are connected in parallel in wich case all of them will operate with the common voltage

4 0
3 years ago
Other questions:
  • What 2 kinds of substances does convection occur ?
    7·1 answer
  • A scaffold of mass 60 kg and length 5.0 m is supported in a horizontal position by a vertical cable at each end. Its center of g
    14·1 answer
  • What is the most likely radiological device that a terrorist might use in a Weapons of Mass Destruction (WMD) incident?
    5·1 answer
  • A given 60uc piont charge located at origion
    13·2 answers
  • Gravitational force varies (changes) inversely with what?
    14·1 answer
  • If i like a boy and he dont like me what should i do? If we like each other what should i do?
    6·2 answers
  • What is the main source of groundwater? A. precipitation falling into man-made wells B. precipitation seeping through pores and
    9·1 answer
  • Explain how muscles are effected by space travel
    9·1 answer
  • What is the velocity of a group of explorers traveling from Antarctica to Australia, traveling 1500 miles in 48 hours?31.25 mph
    15·1 answer
  • What limitations exist when attempting to<br> categorize hair by race?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!