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suter [353]
2 years ago
12

Pls help i’ll give brainliest if you give a correct answer!!

Physics
1 answer:
enot [183]2 years ago
4 0

Answer:

the second one

Explanation:

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Are materials that dissolve in water hydrophobic or hydrophilic
stira [4]

Answer:

hydrophilic

Explanation:

hydrophobic means it hates water so a hydrophobic material would separate from the water and just sit there (an example of this is oil)

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2 years ago
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A race car travels 44.3 m/s around a banked (45° with the horizontal) circular (radius = 200 m) track. What is the magnitude of
djverab [1.8K]

The magnitude of the resultant force is given by the centripetal force, since the car is under a circular motion. So, we have:

F_c=ma_c

The centripetal acceleration is given by:

a_c=\frac{v^2}{r}

Where v is the linear speed and r the radius of the circular motion. Replacing this and solving:

F=m\frac{v^2}{r}\\F=80kg\frac{(44.3\frac{m}{s})^2}{200m}\\F=785N*\frac{1kN}{1000N}\\F=0.785kN

3 0
3 years ago
Which transformation of energy occurs when a fan is turned on and the blades start to rotate?
Ksju [112]

Answer:

kinetic energy

Explanation:

A wind turbine transforms the mechanical energy of wind into electrical energy. A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the blades. These blades turn a generator

5 0
3 years ago
Which of the following statements is true of electromagnetic waves but NOT mechanical waves.
Neko [114]

Answer:

a

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what the heck is a medium

4 0
2 years ago
What is Wave motion<br> las ondas fisica <br> movimiento ondulatorio
PIT_PIT [208]

Answer:

Most familiar are surface waves on water, but both sound and light travel as wavelike disturbances, and the motion of all subatomic particles exhibits wavelike properties

Explanation:

8 0
2 years ago
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