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A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +7.8 m/s and ax = +5.3 m/s2. The y components of the puck's initial velocity and acceleration are v0y = +7.8 m/s and ay = -2.1 m/s2. Find (a) the magnitude v and (b) the direction θ of the puck's velocity at a time of t = 0.50 s. Specify the direction relative to the +x axis.
(a) v = Entry field with incorrect answer Entry field with correct answer
(b) θ = Entry field with incorrect answer degrees Entry field with correct answer the +x axis
If you touch the terminal of a battery, What current will pass through your body if you touch the two terminals of a 9.0 V battery with your two hands
A mass spectrometer applies a voltage of 2 kV to accelerate a singly charged positive ion. A magnetic field of B = 0.400 T then bends the ion into a circular path of radius 0.305m. What is the mass of the ion.
Two masses m and m, are joined by a spring with force constant k. What is the natural frequency of oscillation for this system
A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 0.73 kilogram sample of carbon from the wood has an activity of 2330 decays per minute. Determine the age of the charcoal
light of wavelength 7.5x10-7 meter in air is incident normally perpendicularly on a double slit. the distance between
A wheel rotates with a fix angular acceleration of 3.80 rad/s^2. Determine the angle in which the speed rotates between t=2.00 sec and t=3.60 sec
A cat is located 4.7 m in front of a concave mirror. The mirror has a radius of 1.6 m. Construct a ray diagram to scale following the steps outlined in the procedure here. Where is the image of the cat
A magician wishes to create the illusion of a 2.17-m-tall elephant. He plans to do this by forming a virtual image of a 57.0 cm tall model elephant with the help of a spherical mirror. what radius of curvature is needed
(a) Which mark on the scale will the pointer indicate when no package is hung from the spring? (b) What is the weight W of the third package
Determine what is the absolute pressure at a depth of 10 meter in a lake, Determine what is the gauge pressure
An object moves in SHM with amplitude 4.37 m. The phase constant of the function describing its motion is 1.33 rad. What is the object's displacement at time t = 0 s?
question a 75kg student is standing atop a spring in an elevator that is accelerating upward at 3.0ms2 the spring
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