A circle has a radius of 4.5mm. A sector of the circle has a central angle of 3.5 radians. Find the area of the sector. Do not round any intermediate computations. Round your answer to the nearest tenth.

Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.

Element with 3protons and 5neutrons

Paul and ivan are riding a tandem bike together. they’re moving at a speed of 5 meters/second. paul and ivan each have a mass of 50 kilograms. what can paul do to increase the bike’s kinetic energy?