Q1 a force vector points at an angle of 649 deg above the x, Ask an Expert

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Q1. A force vector points at an angle of 64.9 ° above the +x axis. It has a y component of +276 Newton's (N). Find out (a) magnitude and (b) x component of the force vector.

Q2. A 144 g cube of ice at 0C is dropped into 1.4 kg of water that was originally at 85 C. What is the final temperature of the water after the ice has melted?

Q3. A spring with a spring constant of 30 N/m is stretched 0.16 m from its equilibrium position.

How much work must be done to stretch it an additional 0.076 m?

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Category:- Physics
Reference No.:- M9725002

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