Explanation

When two resistances of 2Ω each are connected in parallel:

1/R = 1/R1 + 1/R2

= 1/2 + 1/2

= 2/2

= 1

R = 1Ω

Explanation

Behaviorism emphasizes learning through experiences and interactions with the environment.

Repeated experiences shape behavior through reinforcement and adaptation.

Explanation

Explanation

An Olympic-size swimming pool is 50 meters in length, 25 meters in width, and at least 2 meters deep.

It is the standard pool size for international swimming competitions, including the Olympics.

Explanation

To divide -63 by -7:

[-63] ÷ (-7) = 9

Explanation

An expression consists of variables, constants, and operators.

Since 3x + 2y - 3 lacks an equality sign, it is an algebraic expression.

Explanation

To evaluate the expression:

2/3 × 1/2 ÷ 1/3

First, multiply 2/3 and 1/2:

(2/3) × (1/2) = 2/6 = 1/3

Then, divide the result by 1/3:

(1/3) ÷ (1/3) = 1

Explanation

2/5 is less than 4/5 and does not lie between 4/5 and 7/14.

5/7, 1/2, and 3/4 all fall between 4/5 and 7/14.

Explanation

Cones are the photoreceptor cells in the retina responsible for color vision.

Malfunctioning or absence of cones leads to color blindness, affecting the ability to distinguish certain colors.

Explanation

Fast break is a strategy in basketball where a team moves quickly from defense to offense to score before the opponent sets up their defense.

It relies on speed, quick passing, and efficient finishing.