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masya89 [10]
3 years ago
15

(GIVING BRAINLIST)

Physics
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

C

Explanation:

During an investigation you want to investigate different variables.

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You're sitting in the back of a taxi and place your bag on the seat next to you. The taxi enters a traffic circle and travels th
svp [43]

Answer:

(d) III only

Explanation:

We have to observe the motion of the bag with respect to taxi , considering taxi as stationary or inertial frame . Since bag is not moving with respect  to taxi , the inertial frame that means , net force on it is zero .So option i and ii are ruled out .

Now how to explain motion of the bag ie why it is stationary ie what are the balancing force acting on it. We know that on a body on circular path , a force called centripetal force is acting on it . So that force must be acting on it . The balancing force is the frictional force which is keeping it stationary with respect to taxi . Hence the third option is correct.

5 0
3 years ago
When you lift a book from the ground to your desk, what kind of work do you do negative or positive by lifting the book what do
skelet666 [1.2K]
It would be kinetic energy. Let's say the book is weighs 10 Newtons you need to use a force of 10 Newtons to lift the book. In other words it's positive. As you move the book you're giving it energy. Namely potential energy which will turn to kinetic energy if you let it go. So you're changing it's position and energy.
7 0
4 years ago
What is paleomagnetism how has it been used to understand plate tectonics?
Nonamiya [84]
<span>Plate tectonics is the theory that the earth's crust is broken up into plates that float on top of a hotter and more fluid layer below. Evidence to support this theory has been uncovered through the study of the earth's past magnetic field, known as paleomagnetism.</span>
8 0
4 years ago
Cuando es más confiable el valor central de una medición
Olin [163]

Answer:

La media es la medida de tendencia central más utilizada y, en general, se considera la mejor medida de la misma. Sin embargo, hay algunas situaciones en las que se prefiere la mediana o la moda.

La mediana es la medida preferida de tendencia central cuando:

Hay algunas puntuaciones extremas en la distribución de los datos.

Explanation:

Espero que esto ayude a marcar el MÁS CEREBRAL !!!

5 0
3 years ago
A periodic wave of frequency f and speed v travel what distance in one period?
maw [93]
I think the answer is b
4 0
3 years ago
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