A lake several streams and rivers that take water away from it. Does the lake contain freshwater or saltwater?

Answers

Answer 1

Answer: It contains fresh water.

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a plane is flying due east in still air at 395 km/h. suddenly, the plane is hit by wind blowing at 55km/h toward the west. what is the resultant velocity of the plane
A Universe Question!An astronomer see a star that is very far away but still very bright. What can she conclude about the star? A) The star must be very large. B) The star must be very small. C) The star must be moving away from Earth. D) The star must be moving closer to Earth.
The image above shows the nucleus of a nitrogen atom. How can the atomic number of nitrogen be determined?A. count the humber of neutrons B. Count the number of protons C. Add the number of protons and neutrons D. count the number of electrons
You use a 1200-watt hair dryer for 10 minutes each day. a. How many minutes do you use the hair dryer in a month? (Assume there are 30 days in the month.) b. How many hours do you use the hair dryer in a month? c. What is the power of the hair dryer in kilowatts? d. How many kilowatt-hours of electricity does the hair dryer use in a month? e. If your town charges $0.15/kWh, what is the cost to use the hair dryer for a month?
Which one is having lesser ressistance. a 60w bulb or a 40w bulb?

Will amplitude change if the pitch gets louder

Answers

The wording of the question is fundamentally defective,
and the question is therefore unanswerable. (But I'll
gladly accept your points anyway.)

"Amplitude" is the origin of the subjective impression of loudness.
"Pitch" is not.

There is no such concept as the 'loudness' of a pitch.

Which weather technology is used to gather pressure, wind speed, and other first-hand observations of hurricanes that are out at sea?

Answers

A weather technology is used to gather pressure, wind speed, and other first-hand observations of hurricanes that are out at sea is a weather station. A weather station is used on land and at sea to measure the different weather elements at various points or regions. They are equipped with a wide array of instruments that can either manually or automatically measure data.

Answer:

Recon-Aircraft

Explanation: It gathers Info firsthand.

Suppose you wanted to do an experiment to find out if changing the length of a pendulum changed the amount of time it takes the pendulum to swing back and forth. Which pendulums from the above diagram would you use for the experiment?a.1 and 4
b.2 and 4
c.1 and 3
d.2 and 5
e.all

Answers

If you started out knowing nothing about pendulums, then you'd
want to use #1 and #3 for an experiment with meaningful results.

Why ?

Thinking clearly, you'd look at a swinging pendulum, and realize that
there are only two things about it that might affect its period:
==> its length, and ==> the weight on the end of it.

Since this first experiment focuses on the length, you want to keep
everything else constant. So you'd want to compare pendulums
with different lengths but the same weight.

Later on, you'll do the other experiment. You'll compare pendulums
with the same length but different weights.

Hi!

Assuming that W = weight.
Weight has to be equal so that you can concentrate on time change because of varying length.

If you change weight as well, the experiment would not be very accurate and would result in a failure.

So, the right answer is C. 1 and 3.

Hope this helped!

The frequency of a purple photon is 7.14×10^14 Hz. Which equation should be used to solve for the wavelength of the photon?

Answers

Answer:

420.17 nm

Explanation:

Given:

f = 7.14 × 10¹⁴Hz

c = 3 × 10⁸ m/s

c = fλ

λ = c/f

$=(3*10^8)/(7.14*10^(14))$

$=(3)/(7.14)*10^((8-14))$

$=0.42017*10^(-6)$

$=420.17*10^(-9)$

= 420.17 nm

A girl rides her moped 5.0 km east and then turns around and rides 2.0 km west. The entire trip takes 15 minutes. What are her average speed and velocity?

Answers

The girl's average speed is 28 km/h, and her average velocity is 8 km/h to the east.

Average speed and average velocity

To calculate the average speed and average velocity, we'll use the following formulas:

Average Speed = Total Distance / Total Time

Average Velocity = Total Displacement / Total Time

Given information:

Distance traveled east = 5.0 km
Distance traveled west = 2.0 km
Total time = 15 minutes = 15/60 hours = 0.25 hours

Total Distance = Distance east + Distance west = 5.0 km + 2.0 km = 7.0 km

Total Displacement = Final position - Initial position = 2.0 km east

Average Speed = 7.0 km / 0.25 hours = 28 km/h

Average Velocity = 2.0 km east / 0.25 hours = 8 km/h (east)

So, the girl's average speed is 28 km/h, and her average velocity is 8 km/h to the east.

More on average speed and average velocity can be found here: brainly.com/question/28512079

#SPJ3

Answer; lol im taking that physics exam as well, a m f confused i cant find the answers on the internet

Explanation: #ripaldinepride

Which describes the electric forces inside an atom?A. Gravitational forces are much stronger than electric forces.

B. Electric forces and gravitational forces are equal in this setting.

C. Electric forces are much stronger than gravitational forces.

Answers

Answer:The correct answer is option C.

Explanation:

Electrical forces are forces between the charge particles of different charges or of same charges.This type of force is termed as electrostatics forces.

Like charges repel each other and unlike charges attract.They are dipole forces and stronger than the gravitational forces which only attracts and are monopole forces.

Atom consist of protons and electrons with positive and negative charge respectively.The force between these subatomic particles are very stronger than the gravitational forces between these particles.This is due to very smaller masses of protons and electrons the gravitational force between them is very small.

the correct answer is C hope this helps a little

Other Questions

-g A small block is attached to an ideal spring and is moving in SHM on a horizontal frictionless surface. The amplitude of the motion is 0.165 m. The maximum speed of the block is 3.90 m/s. What is the maximum magnitude of the acceleration of the block?

At a constant temperature, what will happen to the pressure inside a container of gas if the volume of the container is reduced?a. The pressure will increase. b. The pressure will decrease. c. The pressure will remain constant.

I need help i'm confused

A force of 450 N accelerates a box across a frictionless surface at a rate of 15 m/s2. Find the mass of the box?A) 30 N B) 30 kg C) 6,750 N D) 6,750 kg