3 years ago

1. Which of the following is NOT a vector quantity? (a) Displacement. (b) Energy. (c) Force. (d) Momentum. (e) Velocity.

Physics

1 answer:

dem82 [27]3 years ago

5 0

Answer:

B. energy

Explanation:

A vector has direction.

Energy does not have a direction.

You might be interested in

A student observed a sample of water in three states of matter. The student should describe the liquid water as a state of matte

Nadya [2.5K]

Answer:

B. Less volume than a solid state

6 0

3 years ago

Who would be most likely to analyze a tablet with cuneiform to determine what goods were traded by the merchants of Ur?

mars1129 [50]

I think your answer would Be A. Because historians mostly study written documents, while archaeologists uncover fossils and buildings.

5 0

3 years ago

Read 2 more answers

For a constant force the impulse could be increased by

Aleksandr [31]

For constant fore the impulse could be increased by increasing the time for the force.

5 0

3 years ago

Read 2 more answers

What is nuclear energy and light energy by clear explanation

Kazeer [188]

Answer:

nuclear energy is a energy that holds together of atoms

light energy is a kind of kinetic with the ability to make types of light visible to human eyes

4 0

2 years ago

A Block slides down an incline that makes an angle of 30? with the horizontal direction. The coefficient of kinetic friction bet

astraxan [27]

Answer:

Acceleration = 2.35 m/ $s^{2}$

Speed = 8.67 m/s

Explanation:

The coefficient of friction , u =0.3

The angle of incline = 30°

The two forces acting on block are weight and friction.

weight along the incline = mg cos60° = $\frac{mg}{2}$ = 0.5 mg

Friction along incline = umg cos30° = mg $0.3\times \frac{\sqrt{3}}{2}$

Friction along incline = 0.26 mg

Net force acting on the weight = (0.5 - 0.26) mg = 0.24 mg

Acceleration = $\frac{net force}{mass}$ = 0.24 g = 2.35 m/ $s^{2}$

The height of incline = 8 m

Length of the inclined edge = 16 m

$v^{2}=u^{2}+2as$

$v^{2}= 2\times 0.24 \times 9.8\times 16$

v= 8.67 m/s

5 0

3 years ago