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
Ganezh [65]
3 years ago
13

PLEASE HELP!!!!!!!!!!!!!

Physics
1 answer:
Alexus [3.1K]3 years ago
3 0
Answer: A common measurement system allows us to make direct comparisons instead of having to know things.
You might be interested in
Which of the following forces exists between objects even in the absence of direct physical contact
steposvetlana [31]

Answer:

B. Field Force

Explanation:

3 0
3 years ago
Read 2 more answers
Help help help help help
Aleksandr [31]

Explanation:

P= rho×g × h (g=10 m/s²) ,

(rho=1000 kg/m³)

P= 1000×10×5= 50,000 N/m² (C)

6 0
3 years ago
Read 2 more answers
A common cylindrical copper wire used in a lab is 841 m long. Find the radius (in mm) of a wire necessary to have 0.5 Ohms of re
slava [35]
The relationship between the resistance R of a wire and its resistivity \rho is given by
R=  \frac{\rho L}{A}
where L is the length of the wire and A is its cross sectional area.

In the problem, we have R=0.5 \Omega, \rho = 1.68 \cdot 10^{-8} \Omega m and L=841 m. So we can solve the find the area A:
A= \frac{\rho L}{R}=2.83 \cdot 10^{-5} m^2

For a cylindrical wire, the cross sectional area is given by
A= \pi r^2
where r is the radius. We know the value of the area A, so now we can find the radius of the wire:
r= \sqrt{ \frac{A}{\pi} }= \sqrt{ \frac{2.83 \cdot 10^{-5}m^2}{\pi} }=0.003 m=3.0 mm
3 0
3 years ago
Which one of newton's laws does a doll riding a dog represent
strojnjashka [21]
I believe it would best represent Newton’s first law; an object tends to stay at rest and an object tends to stay in motion unless acted upon by an unbalanced force. When the dog stops walking, the doll will continue to go forward because there is no unbalanced force acting in it.
4 0
4 years ago
Rank the following compounds in order of decreasing vapor pressure.
liubo4ka [24]
Hello ? What compounds are you referring to ?
3 0
4 years ago
Other questions:
  • Where on the electromagnetic spectrum is visible light found?
    11·1 answer
  • Help plzzzzzzzzzzzzzzzz!
    7·1 answer
  • 1.A wagon with a mass of 20 kg is accelerating at 0.5 m/s2. What is the force on it?
    12·1 answer
  • If you swing a bucket of water fast enough in a vertical circle, at the highest point the water does not spill out. This happens
    7·1 answer
  • Can a moving object have gravitational energy?
    15·1 answer
  • A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood?
    6·1 answer
  • A cars speedometer measures
    12·1 answer
  • Please help, no links please! I dont understand stand this question and im going to cry
    8·2 answers
  • While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile's acceleration? (Reme
    8·1 answer
  • What is the typical treatment for Hodgkin's disease?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!