Find out the childs speed at the lowest point
A 23 kg child sits in a swing supported by two chains, each 1.6 m long. The acceleration of gravity is 9.8 m/s2 . If the tension in each chain at the lowest point is 203 N, find the child's speed at the lowest point.
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A candle is placed 16.0 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, the image moves 7.5 cm farther away from the mirror. Find the focal length of the convex mirror.
Hanging on the ladder are two masses. The first mass is 9.9 kg and is located 5% from the ladder's base. The second mass is 7.1 kg and is located 4% from the top of the ladder. What is the smallest angle (in degrees) between the floor and ladder t
A toy train is pushed forward and released at x_0 = 2.0 m with a speed of 2.0 m/s. It rolls at a steady speed for 2.0 s, then one wheel begins to stick. The train comes to a stop 6 m from the point at which it was released. What is the magnitude
Write the displacement vector from aircraft 1 to aircraft 2 in "cylindrical" coordinates. That is, write a 3-component vector (r, θ, z) whose first two components are the polar coordinates of the horizontal displacement between the planes, a
A 400kg ruck is moving with a velocity of 40km/h.it is stopped 25m beyond the point at which the brakes are applied. Find the retarding force
Where the free-fall acceleration is 3.7 meters per second ^2. Find the velocity with which it hits the ground. answer in units of m/s.
A pair of speakers separated by 0.900 m are driven by the same oscillator at a frequency of 672 Hz. An observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers. (Assume the sp
The nuclide 55Ca has a half-life of 2.737 years, decaying by electron capture to 55Mn. Find the mean life and the decay constant for this radionuclide. A source of this isotope has an activity of 0.900 mCi. Find the activity remaining after the e
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
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Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult