A hiker walks from (x1, y1) = (−3.95 km, 3.05 km) to (x2, y2) = (3.05 km, 5.65 km). (Take east to lie along the positive x-axis and north to lie along the positive y-axis.) (a) What distance has he traveled? (Assume the hiker walked in a straight line.) (b) The hiker desires to return to his starting point. In what direction should he go? (Give the angle with respect to due east. Enter an angle between 0° and 360°.)

What is the coefficient of kinetic friction μk between the block and the tabletop?

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car