At sea level, the speed of sound is 3.40-10² meters
per second. after 3 hours and 30 minutes, about how
many kilometers could a sound wave travel?
a. 4.28x10 km
b. 7.14x10 km
c. 7.14x104 km
d. 6.73x104 km
e. 4.28x105 km

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

the correct answer is 5 6 and 7

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%

7/2

(decimal: 3.5)

welcome ; )

step-by-step explanation: