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Question
A.)If puck has a radius of 2 cm, what is the ratio of angular to linear velocity for which kinetic energy of linear motion equals that of rotational motion? If your puck has segments of linear motion around 10 cm long, what alteration in angle would be observed for a rotation having the identical kinetic energy as the linear motion?
B.)If puck is spinning (rotating) while it collides with a wall, sketch qualitatively how that affects the trajectory. (There is friction between the puck and wall)
C.)Consider two identical pucks that undergo an elastic collision on a level air table. If one is stationary, plan a range of possible closing velocities for the two pucks. What determines which of possibilities occurs?
The energy of the first excited state of a hydrogen atom is -0.34eV +/- 0.0004eV. What is the minimum average lifetime for this state
Four solid plastic cylinders all have radius 2.75 cm and length 6.42 cm. Find the charge of each cylinder given the following additional information about each one.
The velocity of a boat with respect to the water is 4.0 m/s at an angle of 30.0 degrees NORTH of EAST. What is the velocity of the boat with respect to the ground
a cylindrical can 8.00cm outside diameter and 20cm high floats upright in the water. how high will the water rise
In a science museum, a 130kg brass pendulum bob swings at the end of a 13.7m -long wire. how many oscillations will the pendulum have completed
A small statue has a height of 3.8 cm and is placed in front of a concave mirror. evaluate the focal length of the mirror
a frictionless pulley which can be modeled as a 0.80 solid cylinder with a 0.30 m radius has a rope going over it. What is the angular acceleration of the pulley
A person who weighs 684 N steps onto a spring scale in bathroom, and the spring compresses by 0.518 cm. (a) What is the spring constant? (b) What is the weight of another person who compresses spring by 0.328 cm.
A bird sitting in a tree is travelling at 40 km/s relative to the faraway Sun. When the bird drops to the ground below, does it still go 40 km/s, or does this speed become zero.
A bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
An object of mass "m" is thrown up an inclined plane of angle "theta" with an initial velocity "v knot". If the motion is resisted by retarding force Fr=-kv (where k is a force coefficient and v the velocity of the object.)
A charge 1.1 × 10?5 C is fixed on the x-axis at 7 m, and a charge 8 × 10?6 C is fixed on the y-axis at 5 m. Calculate the magnitude of the resultant electric field ~E at the origin. Answer in units of N/C
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