Why do scientist use classification

Answers

Answer 1
Answer: Hi There!

To classify the organism and to determine which kingdom it belongs to.

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1. On which date does the Antarctic Circle have 24 hours of daylight? A. June 21B. March 21 C. September 21 D. December 21 2. When energy is transferred to air, what happens to the particles of air? A. They move slower. B. They move faster. C. They cool down. D. none of the above

Doubling the voltage in a circuit doubles the current if what is held constant?

Answers

The Resistance needs to be the same to allow the current to double with the voltage.

Which of the following is a major ocean on Earth? A. Mediterranean
B. Gulf of Mexico
C. Bering Sea
D. Indian

Answers

The Indian Ocean. 
The rest of your options are not oceans, they are bodies of water. (e.g: lakes,rivers,gulfs) 
The answer is d, the Indian Ocean

What is a time paradox?

Answers

Hey There Wolfie,

What is a time paradox?

A temporal paradoxtime paradox, or time travel paradox is aparadox, an apparent contradiction, or a logical contradiction that is associated with the idea of time and time travel. Temporal paradoxesfall into two broad groups: consistency paradoxes exemplified by the grandfather paradox; and causal loops

In a nuclear fusion reaction, what state is matter in?a. gas
b. solid
c. liquid
d. plasma

Answers

the matter is in chemical plasma
 

Alternatively d)


I hope I was helpfull




Answer:

plasma

Expl

This other guy said it was plasma

A bartender slides a beer mug at 1.7 m/s towards a customer at the end of a frictionless bar that is 1.0 m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar. (a) How far away from the end of the bar does the mug hit the floor? m (b) What are the speed and direction of the mug at impact?

Answers

Answer:

Explanation:

Given

velocity of mug with which it leaves the bar is 1.7 m/s

Also

height of bar=1 m

Considering motion in vertical direction

s=u_yt+(gt^2)/(2)

here u_y=0

1=0+(9.81* t^2)/(2)

t=\sqrt{(2)/(9.81)}

t=0.451 s

so horizontal distance traveled is

R_x=ut+(at^2)/(2)

here a=0

R_x=1.7* 0.451=0.766 m/s

speed of mug will be combination of horizontal and vertical velocity

v_y=u+gt

v_y=0+9.81* 0.451=4.42 m/s

v_x=1.7 m/s

thus v_(net)=√(v_x^2+v_y^2)

v_(net)=√(4.42^2+1.7^2)

v_(net)=√(22.46)=4.74 m/s

for direction

tan\theta =(4.42)/(1.7)=2.6

\theta =69

\thetais with x axis in clockwise sense

What's the formula to torque?

Answers

The formula of torque is T=FR (T is torque, F is force, R is radius)
so the formula would be F times R for torgue