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a car of weight 12kn is parked on an uphill road. the road is inclined at an angle of 10° to the horizontal. use a geometrical method to calculate the perpendicular component of the car's weight acting on the slope and also the force od friction of the road acting on the car's tyres.

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?