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TiliK225 [7]
1 year ago
14

What does it mean by a wave has a period of 40 ms

Physics
1 answer:
qwelly [4]1 year ago
8 0

Answer:

it means how fast the wave is traveling in which a 40 ms is as fast as a car traveling

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In an electron cloud, an electron farther east away from the nucleus has?
vladimir2022 [97]

An electron that is far away from the nucleus have higher energy than an electron near the nucleus. Nucleus are positively charged and those electrons near it get attracted; those electrons gain kinetic energy hence reducing their internal energy. The electrons far from nucleus have low kinetic energy hence more internal energy.

8 0
3 years ago
Air rushing against an airplane is an example of _____friction.
slava [35]
The word "static" would be known to be friction as air rushing against an airplane
6 0
3 years ago
A person carries a plank of wood 2.00 m long with one hand pushing down on it at one end with a force f1 and the other hand hold
slega [8]

Answer:


F₁ = 4,120.2 N


F₂ = 3,924N


Explanation:



1) Balance of angular momentum around the end where F₁ is applied.


F₂ × 0.5m - F₁ × 0 = mass × g × 1m


⇒ F2 × 0.5 m= 20 kg × 9.81 m/s² × 1 m = 1,962 N×m


F₂ = 196.2 Nm / 0.5m = 3,924 N


2) Balance of forces


F₁ - F₂ = mg


F₁ = F₂ + mg = 3,924N + 20kg (9.81 m/s²) = 4,120.2 N

4 0
3 years ago
Improving your cardiovascular endurance, such as aerobic activity, can get your heart pumping, make you sweaty, and quicken your
Thepotemich [5.8K]

Answer:

The correct answer is - oxygen.

Explanation:

Cardiovascular endurance is the ability to do physical activity or exercise without affecting or being tired for a longer time period. Aerobic exercise or activity can help to increase cardiovascular endurance.

Improving the cardiovascular system helps in delivering oxygen as per the demands with the help of the heart that pumps the oxygen-rich blood to different organs of an individual and lungs by inhaling enough oxygen.

5 0
3 years ago
The temp of the metal in a running car engine is 388 K. Find this temp in Celsius.
Korvikt [17]

Answer:

115°c

Explanation:

°c=k-273

388-273=115

8 0
3 years ago
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