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
son4ous [18]
3 years ago
5

How is the mass number calculated for an element?

Physics
1 answer:
natali 33 [55]3 years ago
8 0
<span># of protons + # of neutrons = atomic mass</span>
You might be interested in
What forms of technology are scientists using to study El Niño? need help fast!?!?!?!?
Natali5045456 [20]
Noaa. The buoys transmit some of the data on a daily basis to NOAA through a satellite in space.
6 0
3 years ago
Read 2 more answers
Gretchen runs the first 4.0 km of a race at 5.0 m/s. Then a stiff wind comes up, so she runs the last 1.0 km at only 4.0 m/s.
KIM [24]

Answer:

The velocity is v = 4.76 \ m/s

Explanation:

From the question we are told that

   The first distance is   d_1  =  4.0 \ km  =  4000 \ m

   The  first speed  is  v_1 =  5.0 \ m/s

    The  second distance is  d_2  =  1.0 \ km  =  1000 \ m

    The  second speed  is  v_2  =  4.0 \ m/s

Generally the time taken for first distance is  

      t_1 =  \frac{d_1 }{v_1 }

        t_1 =  \frac{4000}{5}

       t_1 =  800 \ s

The time taken for second  distance is

           t_1 =  \frac{d_2 }{v_2 }

        t_1 =  \frac{1000}{4}

       t_1 =  250 \ s

The total time is mathematically represented as

     t =  t_1 + t_2

=>   t =  800 + 250

=>    t =  1050 \ s

Generally the constant velocity that would let her finish at the same time is mathematically represented as

      v =  \frac{d_1 + d_2}{t }

=>    v =  \frac{4000 + 1000}{1050 }

=>    v = 4.76 \ m/s

7 0
3 years ago
Which part of the ear sends a message to the brain that is recognized as sound?
viva [34]
The auditory nerve carries an electrical signal to the brain, which turns it into a sound that we recognize and understand.
5 0
3 years ago
Identify the independent, dependent, and constant variables for different experiments.
diamong [38]

ANSWER:

IV, Type of dish detergent. DV, height of foam. CV, type of container, amount of water in container, temperature of water, time the container is agitated.

Explanation:

Independent variable(IV)- what you change during the experiment.

dependent variable(DV)- what you're measuring during an experiment. The dependent variable is DEPENDENT because it's results DEPEND on the independent variable at play.

Constant variables(CV)- things that do not change in order to isolate the tested variables as much as possible.

3 0
3 years ago
Name 3 different types of graphs that can be used to plot data.
siniylev [52]

Answer:

Bar graph

Pie graph

Line Graph

Explanation:

mark as brainliest and drop some thanks!!!

7 0
2 years ago
Read 2 more answers
Other questions:
  • what is the acceleration of a bowling ball that starts at rest and moves 300m down the gutter in 22.4 sec
    10·1 answer
  • Which of the follwoing is not an example of an abiotic factor?
    11·2 answers
  • At time t = 0 an elevator starts moving upward from the ground at a constant speed vo. At a later time t = T1 = 2.35s a marble i
    13·1 answer
  • The car's motion can be divided into three different stages: its motion before the driver realizes he's late, its motion after t
    12·1 answer
  • CAN SOMEONE TELL ME THE answer for this ?
    15·2 answers
  • Frequency of a wave is 20 Hz. It travels with a speed of 5 m/sec. What is wavelength?
    7·1 answer
  • A person weighs 60 kg. The area under the foot of the person is 150 cm2. Find the pressure exerted on the ground by the person.
    8·1 answer
  • A mango fruit drops to the ground from the top of its tree which is 5 m high. How long does it take to reach the ground?
    11·2 answers
  • 2. A kg of iron and a kilo of lead, both at 1000 degrees Celsius, are kept on ice. It is discovered after some time that the iro
    15·1 answer
  • Suppose a child swings around her straight arm about her shoulder joint at an angular velocity of 13 rad/s. If her arm is 40. 0
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!