4 years ago

On a topographic map every fifth contour is darkened. What is this line call?

Chemistry

1 answer:

Veronika [31]4 years ago

8 0

I think it is D but im not sure

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Be able to interpret a population graph in order to estimate population growth

dalvyx [7]

You should show a picture of the graph so we can answer it

7 0

3 years ago

the weight of an object on a distant planet is 600 newtons, and its mass is 294.56kg, what is the acceleration of gravity on tha

katovenus [111]

Formula to use:

${\large{\boxed{\sf{g\:=\:\frac{w}{m}}}$

w = weight

m = mass

g = gravitational field strength.

Given:

w = weight

m = 294.56

g = ?

Solution:

${\tt{g\:=\:\frac{600}{294.56}}$

${\tt{g\:=\:2.04\:m/s^2$

Answer:

${\boxed{\tt{g\:=\:2.04\:m/s^2}}}$

5 0

2 years ago

What is the pH of a solution after the addition of 30.0 mL of 0.100 M NaOH to 50.0 mL of 0.10 M HBr?

Pani-rosa [81]

Answer:

pH = 1.6

Explanation:

HBr + NaOH ⇒ NaBr + H2O

0 mL NaOH:

HBr ↔ H3O+ + Br-

⇒ [ H3O+] = M HBr = 0.1 M

⇒pH = -log [H3O+] = 1

30 mL NaOH:

⇒ mol NaOH = 0.1 mol / L * 0.03 L = 3 E-3 mol

⇒ mol HBr = 0.05 L * 0.1 mol/L = 5 E-3 mol

⇒ M HBr = ( 5 E-3 mol - 3 E-3 mol) / 0.08 L = 0.025 M

⇒ pH = - log (0.025) = 1.6

7 0

3 years ago

Which term answers the question "how fast in what direction"

myrzilka [38]

Velocity the direction and speed

5 0

3 years ago

Read 2 more answers

If you move 50 meters in 10 seconds, what is your speed? Givens: d= t= Unknown: Formula: Plug in: Solve:

marta [7]

Answer:

$\huge\boxed{5 \ m/s}$

Explanation:

Given:

Distance = S = 50 m

Time = t = 10 secs

Unknown:

Speed = v = ?

Formula:

v = S/t

Plug In:

S = 50 m , t = 10 secs

Solution:

v = 50 m / 10 secs

v = 5 m/s

Hope this helped!

<h2>~AnonymousHelper1807</h2>

6 0

3 years ago