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4 years ago

Molecules are different from atoms because they

Physics

1 answer:

kap26 [50]4 years ago

4 0

Answer:

The answer is D

Explanation:

because molecules contain bonds that help create a chemical reaction. Atoms are part of that bond, molecules are made up of atoms.

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What happens as a result of the pulses passing by each other?

nadezda [96]

Answer:

After pulses pass through each other, each pulse continues along its original direction of travel, and their original amplitudes remain unchanged.

Explanation:

Constructive interference takes place when two pulses meet each other to create a larger pulse.

8 0

2 years ago

Ac circuits have… A. Two current paths. B many current paths. C one current path. D two voltage paths

kow [346]

I would say…

B) they have many current paths

3 0

3 years ago

An astronomical unit is _____.

Tamiku [17]

C. the distance from earth earth to the sun

6 0

3 years ago

Read 2 more answers

A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of 8.50 N is applied. A 0.600-kg particle res

gulaghasi [49]

Answer:

Spring constant, k = 283.33 N/m

Explanation:

Given that,

Force acting on the spring, F = 8.5 N

Stretching in the spring, x = 3 cm = 0.03 m

Let k is the spring constant of the spring. It can be calculated using Hooke's law as :

$F=-kx$

$k=\dfrac{F}{x}$

$k=\dfrac{8.5\ N}{0.03\ m}$

k = 283.33 N/m

So, the spring constant of the spring is 283.33 N/m. Hence, this is the required solution.

5 0

4 years ago

A truck with 28-in.-diameter wheels is traveling at 50 mi/h. Find the angular speed of the wheels in rad/min, *hint convert mile

solong [7]

Answer:

Angular speed ω=3771.4 rad/min

Revolution=5921 rpm

Explanation:

Given data

$d=28in\\r=d/2=28/2=14in\\v=50mi/hr$

To find

Angular speed ω

Revolution per minute N

Solution

First we need to convert the speed of truck to inches per mile

1 mile=63360 inches

1 hour=60 minutes

$v=(50*\frac{63360}{60} )\\v=52800in/min$

Now to solve for angular speed ω by substituting the speed v and radius r in below equation

$w=\frac{v}{r}\\ w=\frac{52800in/min}{14in}\\ w=3771.4rad/min$

To solve for N(revolutions per minute) by substituting the angular speed ω in the following equation

$N=\frac{w}{2\pi }\\ N=\frac{3771.4rad/min}{2\pi }\\ N=5921RPM$

3 0

3 years ago