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3 years ago

The breakdown of rocks by chemical action of air and water is called

Physics

2 answers:

Dovator [93]3 years ago

8 0

Answer:

Chemical weathering

Explanation:

This changes the molecular structure of rocks and soil. For instance, carbon dioxide from the air or soil sometimes combines with water in a process called carbonation. This produces a weak acid, called carbonic acid, that can dissolve rock.

Hunter-Best [27]3 years ago

3 0

Answer:

Chemical weathering

Explanation:

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Two identical small metal spheres with q1 > 0 and |q1| > |q2| attract each other with a force of magnitude 81 mN when sepa

Gekata [30.6K]

Answer:

Explanation:

Check the attachment for solution

8 0

3 years ago

A toy car is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s656-03-02-00-00_files/i02900

Whitepunk [10]

It would be 17 m/s

If we use

V2 = V1 + a*t
Sub in 5 for v1
2m/s*2 for a
And
6 for t
That should give you the answer.

5 0

2 years ago

Read 2 more answers

A commonly used unit of electrical energy.

ladessa [460]

The two most common units of electric energy is Watts or hertz.

8 0

3 years ago

You and your friends find a rope that hangs down 19m from a high tree branch right at the edge of a river. You find that you can

tangare [24]

Answer:

Explanation:

Given

length of rope $L=19\ m$

velocity while running $v=2\ m/s$

when the person jumps off the bank and hang on the rope then we can treat the person as pendulum with Time period T which is given by

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

$T=2\pi \sqrt{\frac{19}{9.8}}$

$T=2\pi \times 1.392$

$T=8.74\ m/s$

Greatest Possible distance will be covered when person reaches the other extreme end of assumed pendulum (velocity=zero)

therefore he must hang on for 0.5 T time

$time=0.5\times 8.74=4.37\ s$

5 0

2 years ago

A coil of 150 turns of wire is in the form of a circle of radius 7.5 cm, and sits in the center of a dipole magnet that produces

irga5000 [103]

Answer:

Current in the loop is 0.063 A

Explanation:

Number of turns in the coil N = 150

Radius of the circular loop r = 7.5 cm = 0.075 m

So area $A=\pi r^2=3.14\times 0.075^2=0.0176m^2$

Magnetic field B = 1.5 T

Maximum torque is given $\tau =0.25Nm$

We have to find current in the coil

Torque on circular coil in magnetic field is equal to

$\tau =BINA$

$0.25=1.5\times I\times 150\times 0.0176$

I = 0.063 A

7 0

3 years ago