In Linnean taxonomy, the most unique level is _____. species genus kingdom breed

Puck 1 (0.5 kg) travels with velocity 20 m/s to the right when it collides with puck 2 (2 kg) which is initially at rest. After

Vinvika [58]

Answer:

The final velocity of puck 2 is 6 m/s to the right

Explanation:

Given;

mass of puck 1, m₁ = 0.5 kg

mass of puck 2, m₂ = 2 kg

initial velocity of puck 1, u₁ = 20 m/s

initial velocity of puck 1, u₂ = 0

final velocity of puck 1, v₁ = -4 m/s

Let the final velocity of puck 2 = v₂

Applying the principle of conservation linear momentum, total momentum before collision is equal to total momentum after collision.

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(0.5 x 20) + (2 x 0) = (0.5 x -4) + 2v₂

10 = -2 + 2v₂

2v₂ = 12

v₂ = 12/2

v₂ = 6 m/s

This positive final velocity of puck 2, indicates that it moved to the right.

8 0

3 years ago

If you could travel 900 meters in 55 seconds, what is your speed? (Answer in details=brainliest)

Alika [10]

Answer:

The rate of change of distance is called speed it can also be defined as distance travelled per unit time,from these definition you can tell that the formula will be

speed=distance/time

in this question the distance is 900meters and the time is 55seconds therefore the speed will be:

s=900meters/55seconds

=16.36m/s

I hope this helps

7 0

3 years ago

If we are viewing the atom in such a way that the electron's orbit is in the plane of the paper with the electron moving clockwi

Anastaziya [24]

Answer:

The magnitude of the electric field is $5.1 \times 10^{11} \frac{N}{C}$

Explanation:

Given:

Charge of electron $q = 1.6 \times 10^{-19}$ C

Separation between two charges $r = 5.3 \times 10^{-11}$ m

For finding the magnitude of the electric field,

$E= \frac{kq}{r^{2} }$

Where $k = 9 \times 10^{9}$

$E = \frac{9 \times 10^{9} \times 1.6 \times 10^{-19} }{(5.3 \times 10^{-11} )^{2} }$

$E = 5.1 \times 10^{11}$ $\frac{N}{C}$

Therefore, the magnitude of the electric field is $5.1 \times 10^{11} \frac{N}{C}$

5 0

4 years ago

A speaker emits sound waves in all directions, and at a distance of 28 m from it the intensity level is 73 db. What is the total

Oduvanchick [21]

Answer:

P=0.197 Watt

Explanation:

Given That

B=73dB

Io= 1 * 10^-12

$I=Io * 10^{\frac{B}{10} } \\I=2 * 10^{-5} Wm^{-2} \\A=4 * pi * r^{2}\\ A=9852.03 m^{2}\\ Power= I * A\\P= 0.197 Watt$

6 0

3 years ago

What is deltoids muscle?

ArbitrLikvidat [17]

Answer:

The deltoid muscle is a large triangular shaped muscle associated with the human shoulder girdle, explicitly located in the proximal upper extremity.

Explanation:

7 0

3 years ago

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