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
fiasKO [112]
3 years ago
7

The elements helium neon and Zion are all part of the same___on the periodic table

Physics
1 answer:
Gelneren [198K]3 years ago
8 0
 it is going to be c group

You might be interested in
You are standing a distance of 17.0 meters from the center of a merry-go-round. The merry-go-round takes 9.50 seconds to go comp
GenaCL600 [577]

Answer:

(a)11.24 m/s

(b)7.44 m/s

(c)409 N

(d)539.55\mu

(e) 0

Explanation:

The period for 1 circle 2\pi of the merry go around is 9.5s. It means the angular speed is:

\omega = \theta / t = 2\pi / 9.5 \approx 0.661 rad/s

(a)The speed is

v = \omega * R = 0.661 * 17 = 11.24 m/s

(b) Centripetal acceleration:

a = \frac{v^2}{R} = \frac{11.24^2}{17} = 7.44 m/s^2

(c) Magnitude of the force that keeps you go around at this acceleration

F = ma = 55 * 7.44 = 409 N

(d) let the coefficient of friction by \mu. The frictional force shall be this coefficient multiplied by normal force reverting gravity of the man

F_f = mg\mu = 55*9.81\mu = 539.55\mu

3 0
3 years ago
A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds. If acceleration due to gravity is 10ms-2, the power expended
Setler79 [48]

The power expended is 500 W

Explanation:

First of all, we start by calculating the work done by the man in order to ascend: this is equal to the gravitational potential energy gained by the man, which is

W=mg\Delta h

where

m = 50 kg is the mass of the man

g=10 m/s^2 is the acceleration of gravity

\Delta h = 5 m is the change in height

Substituting,

W=(50)(10)(5)=2500 J

Now we can calculate the power expended, which is given by

P=\frac{W}{t}

where

W = 2500 J is the work done

t = 5 s is the time elapsed

Substituting, we find

P=\frac{2500}{5}=500 W

Learn more about power:

brainly.com/question/7956557

#LearnwithBrainly

7 0
3 years ago
What value is closest to the mass of the atom?....
Sveta_85 [38]
The answer would be 6amu
6 0
3 years ago
Read 2 more answers
What is cheetah speed and strength?
pav-90 [236]

Answer:

Speed: 109.4–120.7 km/h (68.0–75.0 mph)

Strength: Couldn't find out.

Explanation:

3 0
2 years ago
(blank) is the thermal energy that flows from one substance to another when the substances differ in temperature
Oduvanchick [21]
The answer is heat I think
5 0
3 years ago
Read 2 more answers
Other questions:
  • What two forms of energy does the sun supply?
    7·1 answer
  • 4: A piece of fur is negatively charged when:
    14·1 answer
  • The primary difference between a scientific theory and a hypothesis is that a theory is: A prediction of an experimental outcome
    7·1 answer
  • A strand of 10 lights is plugged into an outlet. How can you determine if the lights are connected in series or parallel? Select
    8·1 answer
  • What two controls on a car cause a change in speed? What control causes only a change in velocity
    7·1 answer
  • In the steps of the scientific method, what is the next step after formulating and objectively testing hypotheses?
    7·1 answer
  • A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle
    5·1 answer
  • Things plants make during photosynthesis​
    5·2 answers
  • Why is it important to have a closed circuit?
    15·1 answer
  • PLEASE HELP ME!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!