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
Rzqust [24]
2 years ago
12

An object that can push or pull on iron without touching it is called a:

Physics
1 answer:
harina [27]2 years ago
6 0

Answer:

A magnet

Explanation:

is an object that can attract some metals like iron

You might be interested in
Transverse waves travel with a speed of 20 m/s on a string under a tension 0f 6.00 N. What tension is required for a wave speed
Aleksandr [31]

Answer:

T_2=13.5\ N

Explanation:

Given that,

Speed of transverse wave, v₁ = 20 m/s

Tension in the string, T₁ = 6 N

Let T₂ is the tension required for a wave speed of 30 m/s on the same string. The speed of a transverse wave in a string is given by :

v=\sqrt{\dfrac{T}{\mu}}........(1)

T is the tension in the string

\mu is mass per unit length

It is clear from equation (1) that :

v\propto\sqrt{T}

\dfrac{v_1}{v_2}=\sqrt{\dfrac{T_1}{T_2}}

T_2=T_1\times (\dfrac{v_2}{v_1})^2

T_2=6\times (\dfrac{30}{20})^2

T_2=13.5\ N

So, the tension of 13.5 N is required for a wave speed of 30 m/s. Hence, this is the required solution.

5 0
3 years ago
What if we all jumped at the same time?
Anit [1.1K]
Technically, this delivers a lot of energy into the Earth, but it’s spread out over a large enough area that it doesn’t do much more than leave footprints in a lot of gardens. A slight pulse of pressure spreads through the North American continental crust and dissipates with little effect. The sound of all those feet hitting the ground creates a loud, drawn-out roar which lasts many seconds.
6 0
3 years ago
How much heat would be absorbed by 75.20 g of iron when heated from 22 C to 28 C
Bumek [7]

Mass x SH x °C (or K) ΔT

= 75g x 0.45J/g/K x 6.0 ΔT

= 202.5 Joules of heat absorbed.


(202.5J / 4.184J/cal = 48.4 calories).

I guess that is the answer

8 0
3 years ago
Read 2 more answers
What is CHA-CHA-CHA.​
polet [3.4K]

Answer:

The cha-cha-cha, is a dance of Cuban origin. It is danced to the music of the same name introduced by Cuban composer and violinist Enrique Jorrin in the early 1950s. This rhythm was developed from the danzón-mambo

5 0
2 years ago
Explain Newton's third law in your own words.
Kazeer [188]
Newton's third law states "for every action, there is an equal and opposite reaction."

What this is pretty much saying is that for every action, there is a consequence. One force connects and triggers another.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the speed of an 8.0 x 10^4 kg airliner with a kinetic energy of 1.1 x 10^9 J.
    9·1 answer
  • During World War II, France, the United States, Russia, and Great Britain composed the:
    7·2 answers
  • Determine the resultant moment produced by the load and the weights of the tower crane jibs about point A and about point B. Exp
    13·1 answer
  • Why does it rain so hard?
    13·1 answer
  • If a person traveled from Sacramento to Los Angeles by car, their distance would be 384.9 miles. What would their displacement b
    12·1 answer
  • QUESTION 10
    11·1 answer
  • A catapult fires a 0.015kg stone at 70m/s.The spring constant of the catapult is 150N/M. Find the exrtention of the catapult.
    8·1 answer
  • HELP ME PLEASE!!!!
    14·1 answer
  • Do you expect the normal dicrystalline resistance in the forward bias to be pure ohmic resistance or what ?!​
    6·1 answer
  • A 40kg cart gains a KE of 200J. How fast does it go?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!