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2 years ago

Describe about simple cell. with well label diagram.

1 answer:

8 0

A simple electric has two terminals i.e. negative and positive, And it has a top and a bottom namely Metal Cap and Metal disc.

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<h3>Description of each part :-</h3>

Metal cap:- The part which is above the positive terminal, a cap of metal through which the positively charged electrons are passed.
Metal disc:- The part which is below the negative terminal, a disc of metal through which the negatively charged electrons are passed.
Positive terminal:- In a circuit the current flows from positive terminal to negative terminal.
These terminals are also known as cathode and anode.
Cathode is the other name for positive terminal and anode is the other name for negative terminal.

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Elements that typically give up electrons

Bess [88]

Answer:

they are metals

Explanation:

they don't need to gain electrons they need to get rid of them

8 0

3 years ago

Two cars, initially 12 meters apart, zip towards one another at the speeds shown. At what point will the collision occur? Explai

ivolga24 [154]

Answer:

s₁ = 4.67 m from car A

Explanation:

Since, the cars are moving at a constant speed. Hence, we will apply the equation for uniform motion here:

s = vt

where,

s = distance covered

v = velocity

t = time taken

For Car A:

s₁ = (1.4 m/s)t

For Car B:

s₂ = (2.2 m/s)t

Because the time will be same at the collision. At collision the distance covered by Car A and Car B must be 12 m altogether. Hence:

s₁ + s₂ = 12 m

using values:

(1.4 m/s)t + (2.2 m/s)t = 12 m

t = 12 m/3.6 m/s

t = 3.333 s

Substitute this in the equation of s₁:

s₁ = (1.4 m/s)(3.33 s)

s₁ = 4.67 m from car A

4 0

3 years ago

A student pushed a 100 N bicycle over a distance of 15 m in 5 s. calculate the power generated.

Umnica [9.8K]

The catch in this one is: We don't know how much force the student used to push the bike.

It wasn't necessarily the 100N. That's just the weight of the bike. But you know that you can push a car, a wagon, or a bicycle hard, you can push it not so hard, you can give it a little push, you can give it a big push, you can push it strong, you can push it weak, you can push it medium. The harder you push, the more it'll accelerate, but it's completely up to you how hard you want to push. That's what's so great about wheels ! That's why they were such a great invention ! This is where I made my biggest mistake. This guy came into my store one day and said he's got this great invention, it's definitely going to take off, it'll be a winner for sure, he called it a "wheel". I looked at it, I turned it over and I looked on all sides. I thought it was too simple. I didn't know then it was elegant. I threw him out. I was so dumb. I could have invested money in that guy, today I would have probably more than a hundred dollars.

Anyway, can we figure out how much force the student used to push with ? Stay tuned:

-- The bike covered 15 meters in 5 seconds. Its average speed during the whole push was (15m/5s) = 3 meters/sec.

-- If the bike started out with no speed, and its average speed was 3 m/s, then it must have been moving at 6 m/s at the end of the push.

-- If its speed increased from zero to 6 m/s in 5 seconds, then its acceleration was (6m/s / 5 sec) = 1.2 m/s²

-- The bike's weight is 100N.

(mass) x (gravity) = 100N

Bikemass = (100N) / (9.8 m/s²)

Bikemass = 10.2 kilograms

-- F = m A

Force = (mass) x (acceleration)

Force = (10.2 kg) x (1.2 m/s²)

Force = 12.24 N

-- Work = (force) x (distance)

Work = (12.24 N) x (15 m)

Work = 183.67 Joules

-- Power = (work done) / (time to do the work)

Power = (183.67 joules) / (5 seconds)

Power = 36.73 watts

7 0

3 years ago

Features of a projectile motion

irakobra [83]

Answer:

Explanation:

Properties of Projectile Motion. Objects experiencing projectile motion have a constant velocity in the horizontal direction, and a constantly changing velocity in the vertical direction. The trajectory resulting from this combination always has the shape of a parabola.

5 0

3 years ago

Read 2 more answers

Which two statements are true? Select all that apply. Select one or more: a. A moving magnetic field creates an electric field.

omeli [17]

2. An electric current in a conductor creates a magnetic field at all points in the surrounding region.
3. A permanent magnet creates a magnetic field at all points in the surrounding region.
4. A moving electric charge creates a magnetic field at all points in the surrounding region.

6 0

3 years ago

Read 2 more answers

Describe about simple cell. with well label diagram.​

Describe about simple cell. with well label diagram.