Answer:
Kat should get a whistle that emits sounds in the range of <u>23 and 54,000 Hz</u>.
Explanation:
The hearing range is the frequency range that can be heard by the animals, including humans.
Generally, the hearing range of humans is about 20 to 20,000 Hz and the hearing range of dogs is around 67 to 45,000 Hz
Dog whistles are the whistles which emits ultrasonic sound and are used for training dogs. <u>Generally, the dog whistles are within the range of 23 to 54,000 Hz and thus, can not be heard by the humans.</u>
<span>As towns emerged along the Erie Canal, bringing business, agriculture and industry to the previously unsettled western New York the canal helped New York City establish its trade position and develop into the world's dominant commercial center. Additionally, the canal brought people and products west and provided the fertile land of the Old Northwest (what is now considered the Midwest) a burgeoning market for its produce.
I hope my answer has come to your help. God bless you and have a nice day ahead!
</span>
Answer: The 15th Amendment
Explanation:
The 15th Amendment, granting African-American men the right to vote, was adopted into the U.S. Constitution in 1870. Despite the amendment, by the late 1870s discriminatory practices were used to prevent African Americans from exercising their right to vote, especially in the South.
allow people to practice any religion
