An observer looks into a swimming pool. Without correcting for refraction, she judges the bottom to be 3.5 meters below the water's surface. What is the corrected depth of the pool? Let the indices of refraction nwater = 1.33 and nair = 1.00.

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?