2 years ago

The group one metals are called alkaline metal and group two metals are called alkaline earth metal why?

Physics

1 answer:

Ilya [14]2 years ago

5 0

Answer:

The group one element are called alkali because when they dissolved in water they form alkaline solutions

You might be interested in

A force used to lift a 25kg mass to a height of 12m in 5 sec does 2100J of work. How much force is used

Citrus2011 [14]

Work = force × distance
21000 = force × 12m

we need to rearrange this equation because force isn't on the right side of the equation and it becomes

force = 2100 ÷ 12m
force = 175N

7 0

3 years ago

What is the speed of an electron traveling 32 cm in 2 ns?

abruzzese [7]

Answer:

Speed, $v=1.6\times 10^8\ m/s$

Explanation:

Given that,

Distance covered by the electron, d = 32 cm = 0.32 m

Time, t = 2 ns

We need to find the speed of an electron. Speed is equal to distance covered divided by time. So,

$v=\dfrac{0.32}{2\times 10^{-9}}\\\\v=1.6\times 10^8\ m/s$

So, the speed of the electron is $1.6\times 10^8\ m/s$ .

6 0

3 years ago

List two functions of blood plasma

dexar [7]

Answer:

•Helps to maintain va proper pH in the body which supports cell function.

•Carries electrolytes such as sodium and potassium to our muscles.

8 0

3 years ago

Two coherent sources of radio waves, A and B, are 5.00 metersapart. Each source emits waves with wavelength 6.00 meters.Consider

alexgriva [62]

Answer

given,

distance between A and B is equal to 5 m

let x be the distance of loud speaker from the source A

For constructive interference, path difference = mλ

x - (5 - x ) = 0 , for m = 0

2 x - 5 = 0

2 x = 5

x = 2.5 cm

For destructive interference

$|x - (5 - x )| = (2 m + 1)\dfrac{\lambda}{2}$

m = 0

$|2x - 5| = \dfrac{\lambda}{2}$

$|2x - 5| = \dfrac{6}{2}$

$\pm(2x - 5) = 3$

x = 4 , 1 cm

3 0

3 years ago

Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.20×10^6 N, one at an angle 14.0∘ west of north,

laila [671]

Answer:

1.45544 J

Explanation:

See attachment

5 0

3 years ago

The group one metals are called alkaline metal and group two metals are called alkaline earth metal why?​

The group one metals are called alkaline metal and group two metals are called alkaline earth metal why?