15. One purpose of the tread pattern on a tire is to

a reduce tire wear.

b. reduce traction

C. allow water to flow away from the tire.

d. look impressive.

Which of the following represents a heterygous genotype? A-YY B-yy C-Y^H Y^H D-Yy

A bubble at the bottom of the lake to the surface within 10.0 seconds what is the depth of the lake

A horse pulls forward on a carriage with a given force. By Newton's Third Law, the carriage must be pulling on the horse backward with an equal and opposite force. Given this, what explains why the horse and carriage can move forward?

If a wave has a low frequency, what does the wavelength look like? Question 4 options: short long it will change every second wavelength won't exist

A work crew is using a pulley to lift a small piano up the outside of a building to a second-floor balcony. The piano has mass 180 kg. At a height of 3.0 m, what is the piano's gravitational potential energy with respect to the ground? A. 9.8 J B.

If a soundproof door is almost shut but still leaves a small opening, what wave phenomenon is responsible for someone being able to hear sound from the room while standing by the wall to the side of the opening?

What happens to the force of gravitational attraction if the distance between two objects increase?

How are molecules in a neutral state different from ions?

What is a hypothesis for why mitochondrion has separate dna from the nuclease?

An airplane flies 1350km in 2 1/4 hours. What is its average speed in kilometers per hour?