All categories

3 years ago

Pls help I need this asap

Physics

1 answer:

neonofarm [45]3 years ago

5 0

Answer:

acid rain raises the acidity of the water

Explanation:

this is because acid rain mostly contains sulphurdioxide more then carbon components.

You might be interested in

"the bank stood like a gray fortress at the corner of Yulee and St. Johns" is

GaryK [48]

Answer:personification

Explanation:

Trust me

4 0

3 years ago

Read 2 more answers

Dos cargas iguales de 10^-7C estan separadas por una distancia de 2m. calcule la fuerza con que se repelen

m_a_m_a [10]

Answer:

$F=2.25\times 10^{-5}\ N$

Explanation:

According to question,

Charge 1 and charge 2 are $10^{-7}\ C$

The distance between charges is 2 m

We need to find the force with which two positive charges repel. It is called electrostatic force of repulsion. It can be given by :

$F=\dfrac{kq^2}{r^2}\\\\F=\dfrac{9\times 10^9\times (10^{-7})^2}{2^2}\\\\F=2.25\times 10^{-5}\ N$

So, the electric force of repulsion is $2.25\times 10^{-5}\ N$ .

8 0

3 years ago

In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the

Lana71 [14]

In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the grid. The correct option among all the options given in the question is option "B".When current is supplied to the heater, it causes the cathode to emit electrons. The electrons pass through opening of the grid before reaching the anode. By controlling the number of electrons passing through the grid, the number of electrons reaching the anode can also be controlled.<span>
</span>

6 0

3 years ago

Read 2 more answers

A 60kg block is at rest on a ramp inclined at 35 degrees.

weeeeeb [17]

Answer:

Explanation:

(a)Gravitational Force is W=mg

Frictional force is f

Normal force is N

(b)Since the block is in Equilibrium therefore from diagram we can see that

$f=mg\sin \theta$

$f=60\times 9.8\times \sin 35$

$f=337.26 N$

(c)Magnitude of Normal Force

$N=mg\cos \theta =481.66 N$

(d)friction is also given by

$f=\mu mg\cos \theta$

and $f=mg\sin \theta$

thus $tan \theta =\mu$

$\mu =0.7$

8 0

3 years ago

Wh following areas would most likely have the deepest layer of topsoil

nata0808 [166]

Grassland is the most likely have the deepest layer of topsoil

Topsoil is the outermost layer of the soil that has the highest concentration of of organic matter and microorganism which is very important for plant's growth. Since grassland have a deep layers of topsoil, most of the farmers us it to grow their farm products

3 0

4 years ago