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4 years ago

8

Lead has a density of 11.3 g/cm3 and a mass of 282.5 g. What is its volume

1 answer:

Umnica [9.8K]4 years ago

4 0

The volume is 25cm^3, 282.5/11.3 g/cm = 25

Please in the future use ^ to show exponents, they make life way easier for brainly users to help solve your problem. :)

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Lasers utilize concentrated light waves, focused precisely and used for certain applications. What are some common uses of laser

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its 1,3,4,5 just got it right on edge

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3 years ago

Read 2 more answers

A river 1.00 mile wide flows with a constant speed of 1.00 mph. A man can row a boat at 2.00 mph. He crosses the river in a dire

gladu [14]

To solve this problem we will apply the geometric concepts of displacement according to the description given. Taking into account that there is an initial displacement towards the North and then towards the west, therefore the speed would be:

$V_T^2=v_N^2-v_W^2$

$V_T = \sqrt{v_N^2-v_W^2}$

Travel north 2mph and west to 1mph, then,

$V_T = \sqrt{2^2-1^2}$

$V_T = \sqrt{3}$

The route is done exactly the same to the south and east, so make this route twice, from the definition of speed we have to

$v= \frac{\Delta x}{t}$

$t = \frac{\Delta x}{v}$

$t = \frac{2*(1mile)}{\sqrt{3}mph}$

$t = 1.15hour$

Therefore the total travel time for the man is 1.15hour.

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3 years ago

Use your knowledge of waves and the graph shown to determine the frequency of wave C. What does it tell you about speed of the w

stealth61 [152]

Answer

10

Explanation:

goes up by 10 each time 10 to 20 to 30

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3 years ago

What two quantities must stay the same in order for an object to have a constant velocity? A) The speed and kinetic energy must

GarryVolchara [31]

the answer is c) the speed and direction of travel must be constant

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4 years ago

A joule is an amount of energy, and a watt is a rate of using energy, defined as 1 W = 1 J / s. How many joules of energy are re

Naily [24]

How many joules of energy are required to run a 100 W light bulb for one day?

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3 years ago