Recent activity by Costin

Recent activity by Costin

The speed of sound in air is 340 m/s. What is the wavelength of a soundwave that has a frequency of 502 Hz?

answered Dec 12, 2023

1 answer 124k views

Causes of population growth in nepal and explain

answered Sep 25, 2023

1 answer 421k views

A cut piece of ribbon is 21 inches long. The piece of ribbon is 15% of the original length of the ribbon. How long was the original length of the ribbon?

answered Sep 3, 2023

1 answer 439k views

If 15 people greet each other at a meeting by shaking hands with one another, how many handshakes take place?

answered May 2, 2023

1 answer 398k views

Why do you think it is necessary for frogs and fish to lay so many eggs? What do you think would have happened if humans also give birth to a large number of babies at the same time? (Please give the correct

answered Apr 21, 2023

1 answer 526k views

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS PLEASE AND PLEASE EXPLAIN WHY THAT IS THE ANSWER

answered Mar 26, 2023

1 answer 286k views

5. How many molecules are in 0.500 mole of N2O5?

answered Mar 11, 2023

1 answer 79.7k views

Name the three particles of the atom and their respective charges (positive, negative, neutral)

asked Jan 27, 2023

1 answer 121k views

What is stated in the Preamble of the Declaration of Independence? A. Why the colonies are fighting for independence B. Why the colonies were originally formed C. Why the colonies think they've been mistreated

asked Nov 4, 2022

1 answer 388k views

Can someone please help me answer this question asap

answered Oct 13, 2022

1 answer 428k views

Write an equation of the line passing through the points (4,9) and (-2,-15).

asked Jul 4, 2022

1 answer 256k views

What is the equation from this graph?

asked Jun 9, 2022

1 answer 240k views

Pls help me Will mark you as brain plssss Lucas goes stand-up paddleboarding three days a week and paddles at a leisurely pace. His local surf shop is hosting a stand-up paddleboarding race at the end

answered Jun 7, 2022

2 answers 227k views

What is the distance between 2 and negative 2

answered May 24, 2022

2 answers 35.7k views

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