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Which statement best describes how private industry decides where to spend the money on research and development

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.