One person weighs 70 kg and rides a lightweight bicycle on a flat road. the weight of the bicycle itself is neglected, and the ground friction on the bicycle is ignored. the bicycle has a wheel radius of 32 cm and the pedal has a radius of rotation of 16 cm. if the person continues to apply 20 n of force on the pedal (the direction of the force is perpendicular to the pedal radius), let the bicycle accelerate from the standstill. when the pedal turns 50 turns, what is the speed of the bicycle? (ignore air resistance during acceleration)

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?