At 25°C, sound can travel 100 meters across a football field in 0.29 seconds. Determine the velocity of these sound waves in the direction they travel across the field.

A)

0.0029

m

s

B)

29

m

s

C)

345

m

s

D)

34,500

m

s

A vector of components (-3, - 2) is multiplied by the scalar value of - 6. What is the magnitude and direction of the resultant vector?

I will give brainliest) According to Newton's second law of motion, when an object is acted on by an unbalanced force, how will that object respond?

If the frequency is high, what else will automatically be high? A wavelength B energy C pitch D both pitch and energy

Use the equation from week 3: f r e q u e n c y = w a v e s p e e d w a v e l e n g t h and the wavelength you found in #3 to calculate the frequency of this photon (remember the speed of light is 3E8 m/s) :

While traveling south on an expressway, a car traveling 60 mph (miles per hour) slows down to 30 mph in 12 minutes due to traffic conditions. Calculate the acceleration.

With what velocity does it hit the ground?

What chemical phenomenon accounts for the elasticity seen in solids? covalent bonds, hydrogen bonds, ionic bonds, all of the above

The particles in a surface water wave move back-and-forth only. Question 9 options: True False

Does the acceleration of a falling body change or is it constant

What can cause sediment to form on land? Only mechanical weathering rocks Only biological weathering rocks Any kind of weathering or rocks Melting of rock in the core