All categories

3 years ago

Why is the term minority group no longer effective

1 answer:

8 0

The term minority group is no longer effective because these groups now make up significant percentages of the total population

You might be interested in

Use complete sentences to differentiate between acids and bases on the basis of their behavior when dissolved in water Give an e

grigory [225]

Explanation:

An acid is a substance that interacts with water to produce excess hydroxonium ions, H₃O⁺ in an aqueous solution.

The hydroxonium ions formed by the chemical bonding between the oxygen of water molecules and the protons released by the acid due to its excess ionization.

For example:

HCl + H₂O ⇄ H₃O⁺ + Cl⁻

acid water hydroxonium chloride

A base is a substance that interacts with water to yield excess hydroxide ions, OH⁻ in an aqueous solutions:

NH₃ + H₂O ⇄ NH₄⁺ + OH⁻

Ammonia water ammonium hydroxide

These explanations are based on the arrhenius theory.

learn more:

Bronsted-lowry theory brainly.com/question/4083753

Acid reaction brainly.com/question/5273689

#learnwithBrainly

4 0

2 years ago

Which statement is true about the force of gravity?

Evgesh-ka [11]

Answer:

Explanation:

gravity pulls us down so we don't float away

5 0

3 years ago

Read 2 more answers

Calculate the man’s mass. (Use PE = m × g × h, where g = 9.8 N/kg.)

vodomira [7]

Answer:

mass=56.12kg

Explanation:

PE=mgh

4620=m×9.8×8.4

make m subject of the formula...

m =4620/(9.8×8.4)

m=4620/82.32

m=56.12kg

7 0

2 years ago

a golfer tees off and hits a golf ball at a speed of 31 m/s and an angle of 35 degrees. how far did the ball travel before hitti

poizon [28]

Ans: R = Ball Travelled = 92.15 meters.

Explanation:
First we need to derive that formula for the "range" in order to know how far the ball traveled before hitting the ground.

Along x-axis, equation would be:
$x = x_o + v_o_xt + \frac{at^2}{2}$

Since there is no acceleration along x-direction; therefore,
$x = x_o + v_o_xt$

Since $v_o_x = v_ocos \alpha$ and $x_o$ =0; therefore above equation becomes,

$x = v_ocos \alpha t$ --- (A)

Now we need to find "t", and the time is not given. In order to do so, we shall use the y-direction motion equation. Before hitting the ground y ≈ 0 and a = -g; therefore,

=> $y = y_o + v_o_yt - \frac{gt^2}{2}$
=> $t = \frac{2v_o_y}{g}$

Since $v_o_y = sin \alpha$ ; therefore above equation becomes,
$t = \frac{2v_osin \alpha }{g}$

Put the value of t in equation (A):

(A) => $x = v_ocos \alpha \frac{2v_osin \alpha }{g}$

Where x = Range = R, and $2sin \alpha cos \alpha = sin(2 \alpha )$ ; therefore above equation becomes:

=> $R = (v_o)^2 *\frac{sin(2 \alpha )}{g}$

Now, as:
$v_o = 31 m/s$

and $\alpha = 35$ °
and g = 9.8 m/(s^2)

Hence,
$R = (31)^2 *\frac{sin(2 *35 )}{9.8}$

Ans: R = 92.15 meters.

-i

7 0

3 years ago

What is the relationship between force of gravity and mass

sweet [91]

Answer:

I hope the picture below help.

Explanation:

6 0

2 years ago