Energy absorbed by the pole
A 56 kg pole vaulter running at 14 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
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A car traveling 20.0 m/s when the driver sees a child standing on the road. She takes .80s to react, then steps on the brakes and slows at 7.0 m/s^2. How far does the car go before it stops?
A 1.0 cm times 1.0 cm parallel-plate capacitor has a 1.0 mm spacing. The electric field strength inside the capacitor is 1.1×105 V/m. What is the potential difference across the capacitor?
Suppose that the same pull is exerted at an angle above the horizontal. If this pull now does 65.0 {rm J} of work on the box while pulling it through the same distance, what angle does the force make with the horizontal?
A chair of weight 115 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 41.0 N directed at an angle of 39.0^circ below the horizontal and the chair slides along the floor. Using Newton's laws,
What frequency will be heard on the other train if the wind is blowing at 30.9 m/s toward the whistle and away from the listener?
What is the magnitude of the force a + 50 mC charge exerts on a - 0.05 C charge 70 mm away?
Discuss the differences between a data flow diagram and a document flowchart. They appear very similar so are they redundant? Why or why not?
Determine a method to improve your ability to self-disclose. If you are too quick to talk about yourself, discuss how you will learn to be more selective with your personal details.
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Write a letter to the editor on land pollution that threatens the health of individuals living in Guyana, and clearly define the problem.
In this unit, you will learn about physical development in middle childhood and adolescence. In middle childhood, we see important physical changes
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