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1.Play with Pendulum Lab to figure out what variables affect the motion of a pendulum and write qualitative descriptions for each variable.
2.Design experiments to find the best equation for the relationship for length and period. Include a spreadsheet and chart with a trend line from Excel.
3.Based on your understanding from the Curve Fitting activity, discuss how well you think the equation really describes the relationship.
4.Design experiments to find the best equation for the relationship for initial angle and period. Include a spreadsheet and chart with a trend line from Excel.
5.Based on your understanding from the Curve Fitting activity, discuss how well you think the equation really describes the relationship.
Use Newton law to determine the force applied to the backrest when a 150-lb person leans 40% of his or her body weight against it. Determine the constant requiered for the spring
A railroad car of mass 2.52 x10^4 kg, is moving with a speed of 3.94 m/s. It collides and couples with three other coupled railroad cars, each of the equal mass as the single car and moving in the equal direction with an initial speed of 1.97 m/s.
Suppose that the aluminum cup inside a calorimeter has a mass of 48 g and contains 84 g of water. Both the cup and water are initially at a temperature of 5.6 degrees C, what is your best estimate of the specific heat of the aluminum
A sphere with mass 0.3 kg and radius 0.05 cm is rolling without slipping along a horizontal surface at a speed of 10 m/s. What height does the sphere come to rest
A force of 70.0 N is exerted at an angle of 30.0 below the horizontal on a block of mass 8.00 kg that is resting on a table
A pair of slits, separated by 0.180 mm, is illuminated by light having a wavelength of ? = 612 nm. Express this path difference in terms of the wavelength
2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball as shown. If the first ball moves away with angle 30° to the original path,
A lumberjack (mass = 98 kg) is standing at rest on one end of a floating log (mass = 290 kg) that is also at rest. Determine the velocity of the second log if the lumberjack comes to rest on it
A current of 22.0 mA is maintained in a single circular loop of 1.90 m circumference. A magnetic field of 0.830 T is directed parallel to the plane of the loop. Calculate the magnetic moment of the loop
The leg and cast weigh 290 -N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 120 N. Determine the weight w1 and angle α needed in order that there is no force exerted on the hip joint by the le..
A spring-loaded pellet gun is designed to fire 3.50 g projectiles horizontally at a speed of 39.1 m/s. What maximum force is required to load the gun
A small conducting spherical shell withinner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radiusd, calculate the electric field (magnitude and direction) in termsof..
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