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3 years ago

An unknown liquid has a mass of 30.70 g and a volume of 52.3 mL. What is the density of the liquid?

2 answers:

7 0

The answer is 0.58699809 or rounded to the nearest hundredth 0.59 because the formula for density is density=mass/volume.

kolbaska11 [484]3 years ago

6 0

Answer:

de sity=mass÷volume.........

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Two ice skaters approach each other at right angles. Skater A has a mass of 32.7 kg and travels in the x direction at 2.3 m/s. S

UkoKoshka [18]

Answer:

Final speed, v = 1.25 m/s

Explanation:

Given that,

Mass of skater A, $m_A=32.7\ kg$

Initial speed of skater A, $u_A=2.3i\ m/s$ (x axis)

Mass of skater B, $m_B=93.3\ kg$

Initial speed of skater B, $u_B=1.51j\ m/s$ (y axis)

It is mentioned that the two skaters collide and cling together. It is case of inelastic collision in which momentum remains conserved. Let V is the final speed of the couple. It is given by :

$m_Au_A+m_Bu_B=(m_A+m_B)V$

$32.7\times 2.3i+93.3\times 1.51j=(32.7+93.3)V$

$V=\dfrac{75.21i+140.88j}{126}$

$V=(0.59i+1.11j)\ m/s$

$|V|=1.25\ m/s$

So, the final speed of the couple is 1.25 m/s. Hence, this is the required solution.

3 0

3 years ago

What is the acceleration of an object with a mass of

aev [14]

Heya!!

For calculate aceleration, lets applicate second law of Newton:

$\boxed{F=ma}$

Δ Being Δ

F = Force = 183 N

m = Mass = 367 kg

a = Aceleration = ?

⇒ Let's replace according the formula and clear "a":

$\boxed{a=183 \ N / 367\ kg}$

⇒ Resolving

$\boxed{ a = 0.49 \ m/s^{2}}$

Result:

The aceleration is 0,49 meters per second squared (m/s²)

Good Luck!!

3 0

3 years ago

In an electron dot diagram, each dot represents a(an ____________________.

Tems11 [23]

Each dot represents a valence electron. Valence electrons are the electron on the outer electron shell of an atom.

8 0

3 years ago

Pls help me 10 points

lapo4ka [179]

Answer:

d is the right answer

it's was helpful to you

3 0

3 years ago

Read 2 more answers

What effort force will be required to lift the 20 N object using the pulley above?

Umnica [9.8K]

Answer:

I think it is 5N.

Explanation:

4 0

3 years ago