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
kolezko [41]
4 years ago
6

The atomic mass of an element whose atoms consist of seven protons, eight neutrons, and seven electrons is _____?

Physics
2 answers:
vodomira [7]4 years ago
6 0
The atomic mass is C. 15

Atomic mass = P + N = 7+8 = 15

The atomic mass of an element is defined as the sum of the protons and neutrons. On the other hand, the atomic number of a neutral element is equivalent to the number of protons or electrons. This is because a neutral element should have equal number of protons and electrons.
MrRissso [65]4 years ago
3 0

Answer:

15

Explanation:

15

You might be interested in
A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpen
Kaylis [27]

Answer:

r = 22.3 cm

Explanation:

given,

angular speed = 45 rev/s

tangential speed  = 63 m/s

length of the rotating string

angular velocity =

ω = 2 π N

ω = 2 π x 45

ω = 282.74 rad/s

we know,

v = r ω

r = \dfrac{v}{\omega}

r = \dfrac{63}{282.74}

r =0.223\ m

r = 22.3 cm

3 0
4 years ago
Is a reflection matter?
azamat

Answer:

Yes, because everything bounce off in every surface around any object.

Explanation:

7 0
3 years ago
No contexto o verbo tomar adquirir duplo sentido . quais sao os sentidos
Rama09 [41]
<span>In the context of the verb take acquire double meaning. what are the senses. Thats what your saying in spanish right?.  that has nothing to do with physics, thats english! JS.
   Whats your question?
</span>
7 0
3 years ago
A conductor carrying a conventional current in the positive-x direction is in a magnetic field whose vector points in the positi
a_sh-v [17]

Answer:

Positive Z direction (out of screen)

Explanation:

Magnetic force is given by F = il \wedge B. A quick way to gauge the components is to put your left middle finger on the direction of the current, your index on the direction of the magnetic field, and the thumb gives you the answer you want.

4 0
3 years ago
Read 2 more answers
Is direction the length of the route between two points ?
zepelin [54]

Answer:

No distance is the length between two routes

Explanation:

Distance is the length of the route between two points. ... Direction is just as important as distance in describing motion. A vector is a quantity that has both size and direction. It can be used to represent the distance and direction of motion.

6 0
3 years ago
Other questions:
  • What type of circuit is illustrated?
    7·1 answer
  • (8%) Problem 3: Sound in water travels at a velocity governed by the relation v = √(B/rho) where B is the bulk modulus and rho i
    10·1 answer
  • Speedy Sue, driving at 35.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 160 m ahead traveling at 5.20 m/s
    12·1 answer
  • Calculate the RMS value of an AC signal with a peak amplitude of 10V and a frequency of 10kHz
    10·1 answer
  • Here are three pairs of initial and final positions, respectively, along an x-axis. Which pair gives a
    12·1 answer
  • A 0.5 kg mass moves 40 centimeters up the incline shown in the figure below. The vertical height of the incline is 7 centimeters
    13·1 answer
  • Both X-rays and gamma rays have higher frequencies than ultraviolet rays <br> True or False
    10·2 answers
  • What is the reason behind superposition?why waves behave this way?
    12·1 answer
  • Find -7a + 3b gtytfvnhfcfgc
    8·2 answers
  • The equation P^xV^yT^z= constant is Boyle law for what is the values of x,y,z​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!