Which of the following is not true?

Physics

2 answers:

Aleks [24]2 years ago

4 0

The correct Answer is c

Lilit [14]2 years ago

3 0

Answer:

Explanation:

Kingdom Fungi does not include trees and vegetables. It includes mushrooms, mildew, mold, rust, and I think yeast.

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Keeping in mind that not all flasks are vacuum, Please help me explain how other flasks prevent heat loss?

lidiya [134]

The silver coating on the inner bottle prevents heat transfer by radiation, and the vacuum between its double wall prevents heat moving by convection. The thinness of the glass walls stops heat entering or leaving the flask by conduction.

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2 years ago

A rotating fan completes 1200 revolutions every minute. consider the tip of a blade, at a radius of 0.19 m. through what distanc

ser-zykov [4K]

The tip of the fan moves through the outer side of the circle.

So it moves a distance of perimeter of circle in one revolution.

Perimeter of circle = 2 $\pi$ r, where r is the radius of circle.

In this case radius of circular motion = 0.19 meter

So perimeter of circle = 2 $\pi$ *0.19 = 0.38 $\pi$ = 1.194 m

So distance does the tip move in one revolution = 1.194 meter

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3 years ago

A lamp is on a dimmer switch. As you turn the switch from the lowest setting to the highest setting, which statement would best

avanturin [10]

Answer:

Explanation:

When something that needs power that you are turning off you will not need power when its off.

8 0

2 years ago

Chose the word that correctly completes the following sentence: Kirchoff's junction law expresses the conservation of ____. a) m

Radda [10]

Answer:A- mass charge.

This can also be called current.

Explanation:

This is Kirchhoff’s 2nd law.

Kirchhoff’s junction law states that the sum of current(mass charge) flowing in and out of the junction must be equal to zero. This law emphasizes conservation of charge and energy. Charge is also a form of energy and it can neither be created nor destroyed.

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2 years ago

A wheel has a radius of 5.9 m. How far (path length) does a point on the circumference travel if the wheel is rotated through an

posledela

Answer:

(a). The path length is 3.09 m at 30°.

(b). The path length is 188.4 m at 30 rad.

(c). The path length is 1111.5 m at 30 rev.

Explanation:

Given that,

Radius = 5.9 m

(a). Angle $\theta=30°$