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
beks73 [17]
3 years ago
10

On a map, a measurement of 1.0 cm represents a velocity of 100 m/s. If you were to draw a vector on the map that represents 80 m

/s, how long would the vector be?
A. 8.0 cm B. 1.25 cm C. 1.25 mm D. 8.0 mm
Physics
1 answer:
zimovet [89]3 years ago
5 0

Answer:

80 \frac{m}{s} = 8 millimeter

Hence, option D is correct

Explanation:

1 centimeter on map represents 100 \frac{m}{s}

10 millimeter on map represents 100 \frac{m}{s}.

So, 1 millimeter on map represents 10 \frac{m}{s}.

10 \frac{m}{s} = 1 millimeter

Thus,

80 \frac{m}{s} = 8 millimeter

Hence, option D is correct

You might be interested in
Bank A has a leverage ratio of 10, while Bank B has a leverage ratio of 20. Similar losses on bank loans at the two banks cause
tamaranim1 [39]

Answer:

<u><em>note:</em></u>

<u><em>find the attached solution:</em></u>

3 0
3 years ago
Can someone check my answers and tell me if their correct?
Otrada [13]

Seven

The magnitude is pointing towards the origin and is at - 20 degrees. The combination makes 160 with the x axis: C answer

Eight

They keep doing this. They use distance where they should use displacement but they use distance to try and fool you. It's a mighty poor practice.

The distance between the start and end points is the displacement. That "distance" is 180*sqrt(25) = 900 . The actual distance should be 180*4 + 180*3 = 720 + 540 = 1260. That's what a car's odometer or a bicycle odometer would read.  the difference is 360.

I really do object to the wording, but what can I do?

Nine

Nine is the same thing as 8.

Displacement = sqrt(400^2 + 80^2)= sqrt(166400) = 408

The actual distance is 400 + 80 = 480

The difference is the answer = 480 - 408 = 72 <<<< Answer

Ten

This is just the displacement magnitude.

dis = sqrt(30^2 + 80^2)

dis = sqrt(900 + 6400)

dis = sqrt(7300)

dis = 85.44 <<<< Answer D

Twelve

Vi =  2.15*Sin(30) = 1.075 m/s

vf = 0

a = - 9.81

t = ?

<u>Formula</u>

a = (vf - vi)/t

<u>Solve</u>

-9.81 =  (0 - 1.075)/t

- 9.81 * t = -1.075

t = 0.11 seconds

Thirteen

I'm leaving this last one to you. You need the initial height xo to answer it properly. Judging by the other questions, this one is right.

Edit

That is a surprise! Really quickly

d = 3.2 m

a = - 9.82

vf = 0

vi = ?

vf^2 = vi^2 - 2*a*d

0 = vi^2 - 2*9.81*3.2

vi = sqrt(19.62*3.2)

vi = 8.0  m/s   But that is the vertical component of the speed

v = vi/sin(25)

v = 8.0/sin(25) = 11


6 0
3 years ago
.hjvhhchhvvgvfggghhjidaaawryui<br>​
Naddik [55]

Answer:

yes

Explanation:

i do agree

5 0
3 years ago
The law of universal gravitation states that a gravitational force exists between all objects in the universe. This force is dir
Ber [7]

Answer: D. it has been demonstrated to be without exception under certain stated conditions.

Explanation:

A <u>Law</u> is an affirmation (something established) based on repeated long-term observation of a phenomenon that has been studied and verified.  

That is: A law is present in all known theories and therefore is considered universal. In addition, a law can not be refuted, nor changed, because its precepts have been proven through various studies.  

<u>Unlike theory</u>, which is the set of rules and principles that describe and explain a particular phenomenon and <u>is subject to changes as new evidence emerges that gives meaning to it.  </u>

Then, based on what is explained above, the law of universal gravitation is a statement that exists because it was rigorously tested and verified, therefore it can not be refuted.

3 0
3 years ago
One drawback of dams is that they can flood land upstream from the dam and reduce water flow downstream from the dam. Question 2
vivado [14]

Answer:

True

Explanation:

It can cause flooding and destruction of habitat because of dammed rivers create large reservoirs upstream which can spill out to the surrounding during heavy rainfall causing flooding and destruction of natural habitat.

7 0
3 years ago
Other questions:
  • If a tree fall in a forest does it make a sound?
    6·1 answer
  • A student uses a compressed spring of force constant 22 N/m to shoot a 0.0075 kg eraser across a desk. The magnitude of the forc
    7·1 answer
  • The famous astronomer, Kepler, determined that the planetary orbits were: 1. ellipses 2. circles 3. epicentric 4. geocentric
    5·1 answer
  • The specific heat of aluminum is 900 J/(kg·°C). How much heat does it take to raise 1 kg of aluminum 4°C?
    9·2 answers
  • What are used for manufacturing paper along with chemical
    12·1 answer
  • What natural phenomena could serve as alternative time standards?
    15·1 answer
  • What is a molecule?
    15·2 answers
  • A 240 V circuit has 20 A flowing through it. How much power is it using?
    8·1 answer
  • How is urine produced
    12·2 answers
  • Writing an Argument About Galetown’s Severe Storms Note: If you do not have access to Amplify Science at home, your teacher will
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!