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Sati [7]
2 years ago
13

Boiling water is a common method used to sterilize water that may be contaminated. subjecting microbes to such high temperatures

is an example of a(n) __________ technique.
Physics
1 answer:
GaryK [48]2 years ago
7 0

Boiling water is a common method used to sterilize water that may be contaminated. subjecting microbes to such high temperatures is an example of a(n) microbicidal technique.

A substance that eliminates microorganisms (such as bacteria) is known as microbicide and the techniques that involve destruction of microbes are known as microbicidal techniques.

The pathogen biofilm was effectively destroyed by the combined microbicidal effects of hot water (50, 60, or 70 °C) and 2% citric acid. It was discovered that the combination of hot water and citric acid caused sub-lethally harmed cells.

A fairly easy way to disinfect water is to boil it. The majority of dangerous organisms, notably viruses and bacteria that cause waterborne infections, are killed when water is heated to a high temperature of 100°C. The water must boil for at least 20 minutes in order to be most effective.

Hence, water that may be polluted is frequently sterilized by boiling. Using such high temperatures to kill germs is an example of a microbicidal method.

Learn more about Sterilization techniques here brainly.com/question/13062351

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A biker rides on an upward-sloped road inclined at a 15.0° angle with the horizontal. If he moves at a constant speed of 2.0 met
IrinaVladis [17]

With total velocity v=2.0\,\dfrac{\mathrm m}{\mathrm s}, the horizontal component of velocity is

v_x=\left(2.0\,\dfrac{\mathrm m}{\mathrm s}\right)\cos15.0^\circ\approx1.93\,\dfrac{\mathrm m}{\mathrm s}

Then the horizontal displacement over the first minute is

s_x=\left(1.93\,\dfrac{\mathrm m}{\mathrm s}\right)(60\,\mathrm s)\approx116\,\mathrm m

6 0
3 years ago
Read 2 more answers
What is the volume of an object that has a mass of 675 g and a density of 15 g/cm3 ?
SpyIntel [72]

Answer:

45

Explanation:

because you divide volume and mass

8 0
3 years ago
A 7500 kg truck traveling at 5.0 m/s east collides with a 1500 kg car moving
julia-pushkina [17]

Since the collision is inelastic, both vehicle will move with a common velocity of 2.5 m/s in south east direction after collision.

<h3>Conservation of Linear Momentum</h3>

It states that, the sum of the momentum before collision is equal to the sum of the momentum after collision.

Given that a 7500 kg truck traveling at 5.0 m/s east collides with a 1500 kg car moving at 20 m/s in a direction 30° south of west. After collision, the two vehicles remain tangled together.

The given parameters are;

  • M1 = 7500 kg
  • U1 = 5 m/s
  • M2 = 1500
  • U2 = 20 sin 30 = 10 m/s
  • V = ?

The formula to find the speed will be

M1U1 - M2U2 = (M1 + M2)V

7500 × 5 - 1500 × 10 = (7500 + 1500)V

37500 - 15000 = 9000V

22500 = 9000V

V = 22500/9000

V = 2.5 m/s

Therefore, the common speed will be 2.5 m/s and the direction of the car will be toward the south east.

Learn more about Collision here: brainly.com/question/7694106

#SPJ1

5 0
1 year ago
In which space, outdoors or in your classroom, would it be easier to hear a musician? Explain
bixtya [17]

Answer:

It is easier to hear a musician in the classroom than outdoors

Explanation:

It is easier to hear a musician in the classroom due to the improved acoustics provided by the walls of the classroom whereby along with the direct sound of the musician, which is the lead source of the sounds, there is an increased number of indirect sound reaching the ear in the classroom than outdoors and due to precedence effect, all the sound appear to come from the musician

In music played outside, along side the direct sound from the musician, the indirect sound that reach the ear is echoed from maybe by only the ground while the majority of the sound from the music wanders away with the wind and in other directions as well as being absorbed such that speakers will be required to improve the sound of the music outdoors.

7 0
4 years ago
Two tuning forks are sounded at the same time. which tuning forks will give rise to a beat frequency of 30 hz when sounded toget
SOVA2 [1]

Answer:

300 Hz and 240 Hz

Explanation:

Beat frequency formed by the tuning fork is given by :

f_{beat}=f_1\pm f_2

Here, the beat frequency, f_{beat}=30\ Hz

The frequency of a tuning fork, f_2=270\ Hz

If f_{beat}=f_1+f_2

f_1=f_{beat}-f_2

f_1=30-270

f_1=240\ Hz

If f_{beat}=f_1-f_2

f_1=f_{beat}+f_2

f_1=30+270

f_1=300\ Hz

So, the tuning forks will give rise to a beat frequency are 240 Hz and 300 Hz. Hence, this is the required solution.

6 0
4 years ago
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