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
kvasek [131]
3 years ago
5

The children asked about the electric train and how to use it.

Physics
1 answer:
juin [17]3 years ago
3 0
U use the train to play hope i helped please thank me 
You might be interested in
With which of the following statements would Whorf and Sapir agree?
ASHA 777 [7]
Hi!

The answer is <span>B. Language influences how people understand their world.

Hope this helps!

-Payshence xoxo</span>
6 0
3 years ago
Read 2 more answers
What is an atomic theory?
seraphim [82]

Answer: the theory that all matter is made up of tiny indivisible particles (atoms). According to the modern version, the atoms of each element are effectively identical, but differ from those of other elements, and unite to form compounds in fixed proportions.

8 0
3 years ago
Read 2 more answers
Young's Modulus refers to changes in the a Volume b- Length c- Body layers
Novosadov [1.4K]

Explanation:

Young' modulus is the ratio of normal stress to the longitudinal strain. Mathematically, it is given by :

Normal stress is given by force per unit area. Longitudinal strain is the change in length per unit original length.

The mathematical definition of Young's modulus is given by :

Y=\dfrac{F/A}{\Delta L/L}..........(1)

Where

\Delta L is the change in length

F is the force

A is the area of cross section

So, the Young's modulus refers to the change in length of the object. Hence, the correct option is (b) "length".

8 0
3 years ago
The properties of element 17 are most similar to which of the following elements?
DedPeter [7]

Halogens are highly reactive nonmetal elements in group 17 of the periodic table. ... Halogens are among the most reactive of all elements. They have seven valence electrons, so they are very “eager” to gain one electron to have a full outer energy level.

5 0
3 years ago
An electric motor consumes 8.40 kJ of electrical energy in 1.00 min. Part A If one-third of this energy goes into heat and other
Salsk061 [2.6K]

Answer:

The torque is 0.31 Nm.

Explanation:

Electrical energy, E = 8400 J

time, t = 1 min

Angular speed, w = 2900 rpm = 303.53 rad/s

efficiency = 2/3 of input power

The toque is given by  

P =\tau  w\\\\\frac{2}{3}\times \frac{E}{t}=\tau w\\\\\frac{2}{3}\times \frac{8400}{60}=\tau \times 303.53\\\\\tau =0.31 Nm

3 0
3 years ago
Other questions:
  • Evolution refers to which of the following? A. having traits that help a species survive B. the gradual change of a species over
    8·1 answer
  • Which is an electron dot diagram of an ionic compound?
    7·1 answer
  • Would you be doing more work going up the stairs twice as fast?
    10·2 answers
  • What is an example of gravitational potential to kinetic to electrical current?
    15·1 answer
  • An object is located 40.0 cm from a convex lens. The lens focuses light at a
    8·1 answer
  • I NEED HELP ASAP
    15·2 answers
  • A ball is projected at an angle of elevation of 60 ° with an initial velocity of 120m/s.calculate
    9·1 answer
  • Four identical metallic objects carry the following charges 1.82 6.65 4.80 and 9.30 C The objects are brought simultaneously int
    15·1 answer
  • Help will give brain list
    6·1 answer
  • An open beaker of pure water has a water potential of.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!