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
Vanyuwa [196]
3 years ago
14

Define the concept national building​

Physics
1 answer:
natali 33 [55]3 years ago
3 0
Cxnxjxxnxjxjxjxhhxhxhxjccjjcvjcjjccjvjvj
You might be interested in
A truck going 15 km􏰀h has a head-on collision with a small car going 30 km􏰀h. Which statement best describes the situation
zlopas [31]

1. e) None of the above is necessarily true.

2.d) Without knowing the mass of the boat and the sack, we cannot tell.

5 0
3 years ago
a female vocalist with a soprano voice can sing as high as 1000 hz. given that the speed of sound is 345 m/s what is the wavelen
Neporo4naja [7]

0.345 m.

<h3>Explanation</h3>

The wavelength is the distance that the wave travels in each cycle. The wave travels 345 meters in each second. Let the wavelength of this wave be \lambda. That's the distance the wave travels in one cycle.

The frequency of the sound wave is 1 000 Hz, meaning that there are 1 000 cycles in each second. The wave travels a distance of 1 000 wavelengths in one second. That would be a distance of 1,000\;\lambda.

From the speed of the wave, the wave travels 345 meters in one second. In other words,

1,000\;\lambda = 345.

\lambda = \dfrac{345}{1,000} = 0.345\;\text{m}.

To generalize:

\lambda = \dfrac{v}{f},

where

  • \lambda wavelength of the wave,
  • v the speed of the wave, and
  • f the frequency of the wave.
3 0
3 years ago
Objects A and B are separated by 2m and the force of attraction between them is 8 x 10^-10 N . If the mass of A is 8kg what is t
Jobisdone [24]

Answer:

Only object a and b???????

5 0
2 years ago
When a calcium atom forms an ion, it loses two electrons. What is the electrical charge of the calcium ion? a) −2 b) −1 c)+ 1 d)
MrRa [10]

Answer:

Option D

+2

Explanation:

We know that Calcium has 20 electrons and 20 protons. It lost two electrons, it has 20 protons, but only 18 electrons. This makes calcium a positive ion with a charge of +2.

8 0
2 years ago
complete the analogy: 1. speed: velocity;______:______ a. acceleration:velocity b. distance:displacement c. speed:acceleration d
Paraphin [41]

Velocity is the vector,
     made up of the scalar speed + direction of speed

b).  Displacement is the vector,
           made up of the scalar distance + direction of distance
7 0
3 years ago
Read 2 more answers
Other questions:
  • How to convert 45.77 cubic inches to cubic centimeters
    12·1 answer
  • Why are the hottest and coldest places on earth over land, not over water?
    11·1 answer
  • A man hits a 50 grams golf ball such that it leaves the tee at an angle of 40o with the horizontal and strikes the ground at the
    8·1 answer
  • _______ describes gases as small, energetic particles moving around and bouncing into each other?
    11·2 answers
  • A 60.7 kg astronaut is floating in space. She takes her 3.1 kg astronaut drill from her toolbelt and throws it to the right. It
    13·1 answer
  • What is the radius of a nucleus of an atom?
    13·2 answers
  • A water park rider (mass = 20.0 kg) starts from rest at the top of a 48.0-m tall
    8·1 answer
  • A wave with a frequency of 5Hz travels a distance of 40mm in 2 seconds.What is the speed of the wave​
    15·1 answer
  • What effect would this have on the momentum?
    12·1 answer
  • A 2kg water balloon is flying at a rate of 4m/s^2. With what force will it hit its target?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!