Question 10 (5 points)
given a graph of velocity v. time, what does a horizontal line represent?
the object's acceleration is positive.
the object is moving at constant velocity.
the object's acceleration is negative.
the object is standing still.

An object weigh 40n in air ,weigh 20n when submerged in water, and 30n when submerged in a liquid of unknown liquid density. what is the density of unknown of liquid?

What sort of waves exhibit the doppler effect?

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90