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4 years ago

Anions are formed by _____.

Physics

2 answers:

valina [46]4 years ago

8 0

An anion is formed by the gain of one or more electrons to the atom.

vampirchik [111]4 years ago

5 0

Answer:

Gaining electrons

Explanation:

Anions are negatively charged ions.

When an atom gains some electrons then anions are formed.

As electrons are negatively charged so anions are also negatively charged ions.

Anions are attracted by the cathode which is positively charged electrode.

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A hockey puck slides across the ice with an initial velocity of 7.3 m/s .It has a decleration of 1.1 m/s and is traveling toward

sashaice [31]

Answer:

t = 6.63 s

Explanation:

Given that,

Initial velocity of the puck, u = 7.3 m/s

Deacceleration of the puck, a = -1.1 m/s²

Distance traveled, d = 5 m

We need to find the time the goalie have to stop the puck. Using equation of motion.

v = u +at

v = 0 (stops)

So,

$u=-at\\\\t=\dfrac{u}{-a}\\\\t=\dfrac{7.3}{-(-1.1)}\\\\t=6.63\ s$

So, the required time is 6.63 seconds.

6 0

3 years ago

.1650w hair drier is plugged into a (110v putlet,<br> how much current will it draw?

poizon [28]

Power = (voltage) x (current)

Current = (power) / (voltage)

Current = (1650 W) / (110 V)

Current = (1650 / 110) (W/V)

<em>Current = 15 Amperes </em>from the putlet.

6 0

3 years ago

True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or fa

olganol [36]

Answer:

true

Explanation:

5 0

3 years ago

A _____________ is defined as a push or pull that acts on objects and, in some instances, changes their position.

Shkiper50 [21]

Force !!!!!!!!!!!!!!!!!!!!!!!!!!!

6 0

3 years ago

Read 2 more answers

A boy whirls a ball on a string in a horizontal circle of radius 1 m. How many revolutions per minute must the ball make if its

spayn [35]

Answer:

Nearest, the revolutions per minute will be 29.

Explanation:

Given that,

Radius of circle = 1 m

Acceleration a =g

We know that,

Angular frequency is defined as,

$\omega=2\pi n$

Where, n = number of revolutions in one second

We need to calculate the revolutions in one second

Using formula of centripetal acceleration

$a=\omega^2r$

Put the value of a and ω

$g=(2\pi n)^2r$

$n=\sqrt{\dfrac{g}{r}}\times\dfrac{1}{2\pi}$

Put the value into the formula

$n=\sqrt{\dfrac{9.8}{1}}\times\dfrac{1}{2\pi}$

$n=0.49$

We need to calculate the revolutions per minute

Using value for the revolutions per minute

$n=0.49\times60$

$n=29.4$

Hence, Nearest, the revolutions per minute will be 29.

7 0

3 years ago