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3 years ago

9

What is how fast an objects speed is changing?

1 answer:

bazaltina [42]3 years ago

3 0

I think it's acceleration or velocity

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A block is found to have volume of 35.3 cm3. It’s mass is 31.7g. Calculate the density of the block

11111nata11111 [884]

Answer:

<h2>1.11 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{35.3}{31.7} \\ = 1.113564$

We have the final answer as

<h3>1.11 g/mL</h3>

Hope this helps you

6 0

2 years ago

What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 40.0 minutes? Assume first-order

yaroslaw [1]

Answer:

See below

Explanation:

.75 = 1/2^(40/h)

log .75 / ( log 1/2) = 40 / h

<u>h = half life = 96.37683 min</u>

8 0

2 years ago

I have a brick, dimensions 4 cm tall, 9 cm wide, and 25 cm long, with a mass of 1250 g. What is the density?

Likurg_2 [28]

Answer:

1.389

Explanation:

P = m / V

m = 1250

V = 4x9x25 = 900

1250/900 = 1.388889

7 0

3 years ago

How many orbitals are in the f sublevel?

lord [1]

Answer:

7 orbitals

Explanation:

An f sublevel has 7 orbitals

7 0

3 years ago

How many molecules are in 2.50 moles of co2

zmey [24]

Answer:

$1.51 \times 1024 \: \: molecules$

4 0

2 years ago

Read 2 more answers