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Vladimir79 [104]
3 years ago
11

If someone with a nostril ring takes it out, then blows their nose, do they have to cover that hole as well as their nostril hol

es so that snot doesn't blow out everywhere?
Physics
1 answer:
liberstina [14]3 years ago
3 0

No they do not need to
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The increase of kinetic energy at the square of the speed of your vehicle has a major influence on all motor vehicles in three p
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This implies that stopping distance and impact force grow as a function of speed. The best ways to improve manoeuvrability and lessen crash severity are to drive at an appropriate pace and to slow down as soon as you spot dangers in front of you.

Keep in mind that stopping distance increases with speed; at 50 mph, it is four times longer than at 25 mph, and at 75 mph, the force of impact is nine times greater.

<h3>What is the impact of speed on kinetic energy ?</h3>

When your car expends or absorbs energy to speed up or slow down, you may feel a pull or a jolt, called impulse. Impulse increases as the energy or force increases, and increases as the duration of the force decreases. You'll feel a harder jolt if you speed up or slow down suddenly.

  • Consider: coming to a stop from 60 mph in ten seconds doesn't hurt you or your vehicle because the force of this event is spread out over a long time. But if you hit a wall and come to a stop in just half a second, you'll feel twenty times the impulse, causing severe damage.

Learn more about Kinetic energy here:

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5 0
2 years ago
Por qué se celebra el día del deporte
yulyashka [42]

Answer:

Día Internacional del Deporte para el Desarrollo y la Paz, 6 de abril. El deporte ha desempeñado históricamente un papel importante en todas las sociedades, ya sea en forma de competiciones deportivas, de actividades físicas o de juegos. ... De hecho, el deporte es un socio natural para el sistema de la ONU.

Explanation:

7 0
3 years ago
Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 2.6 m long, its mass is 0.5
Irina-Kira [14]

Answer:

15.13 m/s

Explanation:

The wave speed of the stretched rope can be calculated using the following formula

v = \sqrt{\frac{F_T}{\mu}}

where F_T = 44N is the tension on the rope and \mu = m/L = 0.5 / 2.6 = 0.1923 kg/m is the density of the rope per unit length

v = \sqrt{\frac{44}{0.1923}} = \sqrt{228.8} = 15.13 m/s

6 0
3 years ago
What space agency is predicted to be first to Mars?
zzz [600]

SpaceX(NASA).

America is the greatest.

7 0
3 years ago
The maximum permissible workday dose for occupational exposure to radiation is 18 mrem. A 54-kg laboratory technician absorbs 2.
motikmotik

Answer:

0.267 × 10⁻³

Explanation:

Given:

maximum permissible workday dose  = 18 mrem

Weight of the laboratory technician = 54 kg

gamma rays absorbed = 2.6 mJ of 0.30 MeV

relative biological effectiveness (RBE) for gamma rays = 1.00

Now,

Radiation Absorbed Dose = \frac{2.6 mJ}{54 kg}\times\frac{1J}{1\times10^3J}\times\frac{1 rad}{0.01 J/kg} = 4.8\times10^{-3}rad

also,

Roentgen Equivalent Man = rad × Q

here Q is the quality factor = 1 for gamma rays

thus,

Roentgen Equivalent Man = 4.8 × 10⁻³ × 1 = 4.8 × 10⁻³ rem

Therefore,

the ratio of the equivalent dosage received by the technician to the maximum permissible equivalent dosage will be

= \frac{4.8\times10^{-3}}{18}

or

= 0.267 × 10⁻³

6 0
3 years ago
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