Plays on a swing related problem
A 20.0 child plays on a swing having support ropes that are 2.30 long. A friend pulls her back until the ropes are 43.0 from the vertical and releases her from rest.
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Find an expression for the electric field strength outside the sphere, r> R.
What is the instantaneous power P delivered to the wheel via the force F_vec at time t = 0? Express the power in terms of some or all of the variables given in the problem introduction.
A sample of sodium fluoride produced 26.5 {rm g} of sodium upon decomposition. How much fluorine (in grams) was formed?
Exerting a force of 79 N on the circular piston of a syringe causes a pressure increase in the barrel of 1.4 atm. What is the diameter of the piston?
A 0.20 M solution of MgSO4 has an observed osmotic pressure of 7.6 atm at 25oC. Determine the observed van't Hoff factor for this experiment. A) 19 B) 0.31 C) 1.6 D) 1.8 E) 2.0
A 88.0 N grocery cart is pushed 13.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?
A racing car travels with a constant tangential speed of 75 m/s around a circular track with a radius 625 m. Find (a) the magnitude of the car's total acceleration and (b) the direction of its total acceleration relative to the radial direction.
A quarterback takes the ball from the line of scrimmage, runs backward for 7.50 yards, and then runs sideways parallel to the line of scrimmage for 15.0 yards. At this point, he throws a forward pass 45.0 yards straight downfield perpendicular to
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Problem: Address the following questions in a post of at least 250 words: What is intelligence to you? How would you measure it?
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