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laiz [17]
3 years ago
14

Please help

Physics
1 answer:
Andre45 [30]3 years ago
7 0

Answer:

your

answer is

12.004

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Lizette works in her school’s vegetable garden. Every Tuesday, she pulls weeds for 15 minutes. Weeding seems like a never-ending
Gnoma [55]

Answer:

Constant or Controlled variables: Same concentration of vinegar solution, same quantity of vinegar, same type of weed etc

Explanation:

In an experiment, certain variables are kept unchanged or constant for both the experimental group and control group in order not to influence the outcome of the experiment. These variables are called CONTROLLED VARIABLES or CONSTANTS.

In the case of this experiment where Lizette is testing the effect of vinegar on weed, the variable that should be kept the same (controlled variables) for the control group of weeds and the sprayed weeds include Same concentration of vinegar solution, Same quantity of vinegar, same type of weed.

8 0
3 years ago
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What is the other 2 word phrase which means "energy transferred"?<br> ur answer
Arisa [49]

Answer:

Work done

Explanation:

7 0
2 years ago
A simple pendulum makes 120 complete oscillations in 3.00 min at a location where g 5 9.80 m/s2. Find (a) the period of the pend
choli [55]

Answer:

(a) 1.5 second

(b) 0.56 m

Explanation:

Pendulum makes 120 oscillations in 3 min that means in 180 seconds

time taken by the pendulum to complete one oscillation is called time period.

(a) So, the time period is 180 / 120 = 1.5 second

T = 1.5 second

Thus, the time period of the pendulum is 1.5 second.

(b) g = 9.8 m/s^2

The formula for the time period is given by

T =2\pi \sqrt{\frac{L}{g}}

Where, L be the length of pendulum

1.5 =2\times 3.14 \sqrt{\frac{L}{9.8}}

0.057= {\frac{L}{9.8}}

L = 0.56 m

Thus, the length of the pendulum is 0.56 m .

6 0
3 years ago
An iron is made up of particles. What is true about the particles?
Rainbow [258]
Iron is an element with the symbol Fe. It is a silvery-white, lustrous, malleable, ductile, magnetic or magnetizable, metallic element occurring abundantly in combined forms, notably in hematite, limonite,magnetite, and taconite, and used alloyed in a wide range of important structural materials. Iron is the fourth most abundant element in the crust of the Earth (5%).
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Water is a major agent of chemical weathering because water
Svetlanka [38]

Answer:

In chemical weathering, minerals that were stable inside the crust must change to minerals that are stable at Earth's surface. ... Water is the most important agent of chemical weathering. Two other important agents of chemical weathering are carbon dioxide and oxygen.

Explanation:

6 0
3 years ago
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