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3 years ago

Which Quantity is a vector Quantity? A] Acceleration B] Mass C] Speed D] Volume

Physics

2 answers:

vlabodo [156]3 years ago

4 0

Well I am positive that the answer is B

Readme [11.4K]3 years ago

4 0

Answer:

Acceleration is a vector quantity.

Explanation:

The quantities that have both magnitude and direction are called vector quantities. Vector quantities follows the law of vector addition, subtraction, division, multiplication.

Out of the given options acceleration is a vector quantity. It has both magnitude and direction.

On the other hand, mass, speed and volume is a scalar quantity. These quantities have only magnitude.

Hence, the correct option is (A) "acceleration".

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Which of these letters is the symbol for current in equations A: c B: i C: r D: t

True [87]

Answer: [B]: The letter, " I " ; for current; in units of "Amps" .
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4 0

3 years ago

Find the potential energy of a 2 kg ball 15 m in the air.

mart [117]

Answer:

294.3 Joules

Explanation:

2kg*9.81m/s^2*Δ15=294.3J

8 0

3 years ago

A mass attached to a spring vibrates back and forth. At maximum displacement, the spring force and the

Svetradugi [14.3K]

ANSWER

Velocity of the mass reaches zero

EXPLANATION

We want to identify what hapens to a mass attached toa a spring at maximum displacement.

When a mass attached to a spring is at its maximum position of displacement, the direction of the mass begins to change. This implies that the velocity of the mass will reach zero.

Hence, at maximum displacement, the velocity of the mass reaches zero.

8 0

1 year ago

Which sphere of Earth do humans exist in?

PolarNik [594]

Biosphere is the answer, hope i helped :))

4 0

3 years ago

Read 2 more answers

A pail in a water well is hoisted by means of a frictionless winch, which consists of a spool and a hand crank. When Jill turns

Katena32 [7]

Answer:

166 W

Explanation:

Power is the rate at which work is done.

$\text{Power} = \dfrac{\text{Work done}}{\text{time}}$

The work done by Jill is the product of the weight of the pail and the height it moves.

The weight is the product of the mass and acceleration of gravity, g. Taking g as 9.81 m/s², the weight is

W = (6.90 kg)(9.81 m/s²) = 67.689 N

Work done = (67.689 N)(27.0 m) = 1827.603 J

Power = (1827.603 J) ÷ (11.0 s) = 166 W

4 0

3 years ago