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

Explain how are position time, velocity, and acceleration related to each<br> other?

pogonyaev

I had this question before I think was it A or B.

6 0

3 years ago

According to the periodic table, how many protons are in the nucleus of one

vodomira [7]

Answer:

Explanation:

The atomic number is derived from the number of protons in the atomic nucleus. The atomic number of bromine is 35, therefore it has 35 protons in its atoms.

3 0

4 years ago

Read 2 more answers

A 7.45 nC charge is located 1.66 m from a 4.22 nC point charge. (a) Find the magnitude of the electrostatic force that one charg

BaLLatris [955]

Answer:

a. $F=1.03\times 10^{-7}N$

b.Repulsive

Explanation:

We are given that

$q_1=7.45nC=7.45\times 10^{-9}C$

$1nC=10^{-9}C$

$q_2=4.22nC=4.22\times 10^{-9}C$

r=1.66m

We know that

Electrostatic force = $F=k\frac{q_1q_2}{r^2}$

r=Distance between $q_1\;and\;q_2$

k=Constant= $9\times 10^9Nm^2C^{-2}$

Using the formula

a.The magnitude of the electrostatic force= $F=\frac{9\times 10^9\times 7.45\times 10^{-9}\times 4.22\times 10^{-9}}{(1.66)^2}$

The magnitude of the electrostatic force= $F=1.03\times 10^{-7}N$

b.Both charge are positive .We know that when like charges repel each other and unlike charges attract to each other.

Therefore, the force between given charges is repulsive.

7 0

3 years ago

Give a reason why, in a room at 30°c, T is stored in a sealed container.

puteri [66]

Like that the heat of the room doesn't reach the what's inside the sealed container. Also for the sealed container to not let out the heat inside the container

7 0

4 years ago

Read 2 more answers

Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an archer pulls the drawstring ba

Alex

Answer:

v=39.05 m/s

Explanation:

Given that

x= 56 cm

F= 158 N

m= 58 g = 0.058 kg

Lets take spring constant = k

At the initial position,before releasing the arrow

F= k x

By putting the values

F= k x

158= 0.56 k

k=282.14 N/m

Now from energy conservation

Lets take final speed of the arrow after releasing

$\dfrac{1}{2}kx^2=\dfrac{1}{2}mv^2$

k x²=mv²

282.14 x 0.56² = 0.058 v²

v=39.05 m/s

3 0

3 years ago