1. What is the weight of a 200 kg object? 2. A woman exerts a force of 500 N straight up to lift a 35 kg basket. What is the acceleration of the basket?
3. An elevator of mass 3000 kg is ascending at a steady speed of 2.0 m/s. What is the force in the cable supporting the elevator?
4. A 49-N block is pulled by a horizontal force of 50.0 N along a rough horizontal surface at a constant acceleration of 6 m/s2.
What is the coefficient of friction?

The difference between two numbers is 15. when twice the smaller number is subtracted from three times the larger number, the difference is 58.what is the larger number?

Give an example in which the electrical energy changes to light energy

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.