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3 years ago

Ear wax, which is produced in the external auditory canal, contains chemicals that guard the ear from infections. TRUE OR FALSE

Physics

2 answers:

kondor19780726 [428]3 years ago

8 0

The answer is true.................

kobusy [5.1K]3 years ago

5 0

The answer is true not false if the ear gets infection it makes more wax so the infection will clear out of the ear

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Two drag cars race. They line up at the starting line at rest. The winning car accelerates at a constant rate a and reaches the

Mila [183]

Answer: $d=\frac{v^2}{8a}$

Explanation:

Given

winning car accelerates with a and its final velocity is v

considering they both start from rest

time taken by winning car is

v=u+at

where u=initial velocity

a=acceleration

t=time

$v=at$

$t=\frac{v}{a}$

Now loosing car is accelerating with $\frac{a}{4}$

Distance traveled by loosing car in time t

$s_1=ut+\frac{at^2}{2\cdot 4}$

$s_1=0+\frac{a}{8}\times (\frac{v}{a})^2$

$s_1=\frac{v^2}{8a}$

Thus distance d traveled by loosing car is given by $d=\frac{v^2}{8a}$

5 0

4 years ago

A boy twirls a 15-lb bucket of water in a vertical circle. If the radius of curvature of the path is 4 ft, determine the minimum

chubhunter [2.5K]

Answer:

11.35 m/s

Explanation:

Given,

Weight of the bucket = 15 lb

radius of curvature, r = 4 ft

Minimum speed of the bucket = ?

Using equation of centripetal acceleration

$W=\dfrac{mv^2}{R}$

$15=\dfrac{\dfrac{m}{g}\times v^2}{4}$

$15=\dfrac{\dfrac{15}{32.2}\times v^2}{4}$

$v^2 = 128.8$

$v = 11.35\ m/s$

Speed of the bucket = 11.35 m/s

5 0

3 years ago

Name three common minerals in silicates

rjkz [21]

Quartz, feldspa, mica, amphibole, pyroxene and olivine

3 0

3 years ago

A girl travels 50m in 12s and then another 30m in 5s .Calculate her average speed?

Zanzabum

Answer:

4.71m/s

Explanation:

Average speed = Total distance travelled ÷ Total time taken.

80/17=4.71

4.71m/s

6 0

3 years ago

Read 2 more answers

To which series would the emitted light belong if an electron in a hydrogen atom underwent a transition from level n = 5 to leve

inessss [21]

So we want to know in which series would the emitted light belong if the electron in a hydrogen atom would go from the energy level n=5 to n=1. The correct answer is Lyman series. Complete Lyman series is from energy level n=6 to n=1. All of the wavelengths in the Lyman series are in the ultraviolet part of the electromagnetic spectrum.

3 0

4 years ago