1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SashulF [63]
3 years ago
14

The natural pH of rain water is?

Physics
2 answers:
SOVA2 [1]3 years ago
6 0
5.6 which would be acidic!
vladimir2022 [97]3 years ago
5 0
Its between 5 to 7 normally 5 means it would be more acidic and 7 is neutral so you can write 5-7.
if you didn't expect this answer pls comment on this answer and I will try to help

You might be interested in
a projectile is lunched with an initial speed of 60.0mm/s at an angle of 30.0° above the horizontal.The projectile lands on a hi
alexandr402 [8]

Answer:

52 mm/s (approximately)

Explanation:

Given:

Initial speed of the projectile is, u=60.0\ mm/s

Angle of projection is, \theta=30.0\°

Time taken to land on the hill is, t=4\ s

In a projectile motion, there is acceleration only in the vertical direction which is equal to acceleration due to gravity acting vertically downward. There is no acceleration in the horizontal direction.

So, the velocity in the horizontal direction always remains the same.

The horizontal component of initial velocity is given as:

u_x=u\cos\theta\\u_x=60\times \cos(30)\\u_x=30\sqrt3\approx52\ mm/s

Now, the velocity in the vertical direction goes on decreasing and becomes 0 at the highest point of the trajectory. So, at the highest point, only horizontal component acts.

Therefore, the projectile's velocity at the highest point of its trajectory is equal to the horizontal component of initial velocity and thus is equal to 52 mm/s.

6 0
3 years ago
A 16.0kg canoe moving to the left at 12.5m/s makes an elastic head-on collision with a 14.0kg raft moving to the right at 16.0m/
kherson [118]

The canoe is moving at 14.1 m/s to the right after the collision.

Explanation:

According to the law of conservation of momentum, in absence of external forces the total momentum of the system must be conserved before and after the collision. So we can write:

p_i = p_f\\m_1 u_1 + m_2 u_2 = m_1 v_1 + m_2 v_2

where:

m_1 = 16.0 kg is the mass of the canoe

u_1 = -12.5 m/s is the initial velocity of canoe (we take right as positive direction, and since the canoe is moving to the left, its velocity is negative)

v_1 is the final velocity of the canoe

m_2 = 14.0 kg is the mass of the raft

u_2 = +16.0 m/s is the initial velocity of the raft

v_2 = -14.4 m/s is the final velocity of the raft

Re-arranging the equation and substituting the values, we find: the final velocity of the canoe:

v_1 = \frac{m_1 u_1 + m_2 u_2-m_2 v_2}{m_1}=\frac{(16.0)(-12.5)+(14.0)(16.0)-(14.0)(-14.4)}{16.0}=+14.1 m/s

So, the canoe is moving at 14.1 m/s to the right after the collision.

Learn more about momentum:

brainly.com/question/7973509

brainly.com/question/6573742

brainly.com/question/2370982

brainly.com/question/9484203

#LearnwithBrainly

5 0
3 years ago
Which of the following physical properties would tell you about an element's mass per unit volume ratio?
Igoryamba
Well I can't see the following physical properties you talked about in the question.

Mass per unit volume ratio is called density.
6 0
3 years ago
5. Electromagnetic radiation travels at a speed of 3.0 x 10^8 m/s.
creativ13 [48]

Answer:

i think its b

Explanation:

6 0
2 years ago
Find an expression for the square of the orbital period.
jenyasd209 [6]

Answer:

T²= 4π²R³/GM

Explanation:

First we know that

Fg= Fc

Because centripetal force must equal gravitational force

So

GMm/R² = Mv²/R

But velocity is 2πR/T

So by substitution we have

GMm/R²= M (2πR/T)/T

We have

T²= 4π²R³/GM as period

8 0
2 years ago
Other questions:
  • When a potential difference of 10 V is placed across a certain solid cylindrical resistor, the current through it is 2 A. If the
    9·1 answer
  • Directions: For each situation, you need to determine if the object has KE or GPE or both. Then find their values. Be sure to in
    15·2 answers
  • What can be used to describe the quantitative data
    5·1 answer
  • Why do people bleed .-.
    5·2 answers
  • 200 kW of solar radiation is shining on a 300 m^2 parking lot. What is the insulation on the parking lot?
    8·1 answer
  • A 9.30 kg mass is moving at a constant velocity of 4.00 m/s.
    13·1 answer
  • A parallel-plate capacitor is disconnected from a battery, and the plates are pulled a small distance farther apart. Does Q incr
    15·1 answer
  • Which force attracts all matter to each other
    11·1 answer
  • Ok plz answer and tell me how to do it
    12·1 answer
  • Analyze the relationship between total internal reflection and the critical angle.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!