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hammer [34]
3 years ago
15

What device uses AC current to operate

Physics
1 answer:
Mashcka [7]3 years ago
5 0
Transformer. Its an electrical device that uses electromagnetic induction to pass an alternating current (AC) signal from one electric circuit to another, often changing the voltage and electrical current
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If a thermometer reads 52° F, what is the temperature in Celsius?
defon

Answer:

11.11 C

Explanation:

(52 f-32) * 5/9= 11.11

7 0
3 years ago
Read 2 more answers
One of the games at a carnival involves trying to ring a bell with a ball by hitting a lever that propels the ball into the air.
RoseWind [281]

Answer:

Ball will not hit bell.

Explanation:

The height of the ball is modeled by the equation h(t)= -16t²+39t

We need to find if the bell is 25 ft above the ground, will it be hit by the ball.

So we need to find maximum height of the ball.

For maximum height we have

                   \frac{dh}{dt}=0\\\\\frac{d}{dt}\left ( -16t^2+39t\right )=0\\\\-32t+39=0\\\\t=1.22s

Substituting in h(t) = -16t²+39t

Maximum height reached = h(1.22) = -16 x 1.22²+39 x 1.22 = 23.77 ft

So maximum height reached is less than height of bell.

Ball will not hit bell.

8 0
3 years ago
_____ bias describes when your likes and dislikes affect how you think about something.
sdas [7]
It is confirmation bias which is favoring your own hypothesis and selective seek
5 0
4 years ago
What are the requirements for chemical labels
yaroslaw [1]

A chemical label should include: a product identifier, signal word, hazard statement, precautionary statement,pictorgrams and supplier information

Explanation:

The product identifier : positioned at the upper left end corner of the label gives the identity of the hazardous chemical by appropriate terms. i.e. the name and code

Signal word: The "Danger" and "WARNING" words. The former is used for a more severe hazard where as the former is for a less severe hazard

Hazard statement : gives a description of the nature and degree of hazard of the chemical

Precautionary statements : Put for workers and users on ways to minimize exposure and lower risks in event of contact with the harmful chemical

Supplier information : It has the chemical manufacturer details such as name, location and telephone number.

Pictograms : Normally symbols with red borders for visual illustration of the hazard chemical.

Learn More

Chemical labels : brainly.com/question/3115518

Keywords : chemical, labels

#LearnwithBrainly

3 0
4 years ago
Please guys i need help in this
JulijaS [17]

Answer:

10 seconds

Explanation:

We have the equation V = at  (speed = acceleration x time)

We want to find the time, so can rearrange to T = V/a (time = speed / acceleration).

From the question, we know V is 5 and a is 0.5.

Now we can substitute that into our equation: 5/0.5 = 10.

So the time is 10 seconds.

Hope this helps! Let me know if you have any questions :)

8 0
3 years ago
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