a 145 g baseball is thrown straight up with kinetic energy 8.7j . when the ball has risen 6m. find the work done by gravity. find the balls kinetic energy and the balls speed.

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?