A 2.36-uF capacitor that is initially uncharged is connected in series with a 5.86-2 resistor and an emf source with E = 120 V and negligible internal resistance. (a) Just after the connection is made, what are (i) the rate at which electrical energy is being dissipated in the resistor; () the rate at which the electrical energy stored in...
II Review The forked rod is used to move the smooth 3-lb particle around the horizontal path in the shape of a limaçon, r = (2 + cos 0) ft.(Figure 1) Part A If 0 = (0.5t2) rad, where t is in seconds, determine the force which the rod exerts on the particle at the instant t = 1 s....
Review | Constants Learning Goal: To practice Problem Solving Strategy 8.1 for circular-motion problems A cyclist competes in a one-lap race around a flat, circular course of radius 140 m. Starting from rest and speeding up at a constant rate throughout the race, the cyclist covers the entire course in 60 s The mass of the bicycle (including the rider)...
The particle has a mass of 0.8 kg and is confined to move along the smooth vertical slot due to the rotation of the arm OA. The rod is rotating with a constant angular velocity θ = 2 rad/s. Assume the particle contacts only one side of the slot at any instant.(Figure 1).
Part A
Determine the magnitude of the force...
Please find the correct answers A and B
The particle has a mass of 0.3 kg and is confined to move along the smooth horizontal slot due to the rotation of the arm OA. Assume the particle contacts only one side of the slot at any instant. The arm has an angular acceleration of 3 rad/s2 where #2 rad/s at...
4 A point sound source emits a sinusoidal wave at a frequency of 2,000 Hz. The pOwer of the sound at the source is 10 watt. What are: the sound intensity, the sound intensity level and the loudness of that sound at (a) a distance of Im from the source? (b) at a distance of 2m from the source?
Inside your smartphone is a small integrated circuit called a "Hall sensor" that measures the magnetic field to fairly high precision. (It is actually made of three separate "Hal bars", to measure the field components in the r, y, and z directions). The Hall sensor acts like a compass for your phone, and assists in navigation and GPS apps. Let's...
11. (3 pts) What is the frequency of an photon having a wavelength of 954.9 nm? hv } १4.१ 12. (5 pts) A radio station 1140 AM, broadcasts in a frequency of 114,000 Hz. What is the corresponding wavelength of this electromagnetic radiation? What is the corresponding energy of this electromagnetic radiation?
7. Suppose there are 10 lines in the plane and no two of them are parallel. Suppose that at every point in the plane there are at most 3 lines passing through that point. Show that if we fix one of the 10 lines Lo, then there are at least 5 points on Lo where other lines intersect it.
7....
Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.56 and a standard deviation of 0.38. Using the empirical rule, what percentage of the students have grade point averages that are at least 1-422 Please do not round your answer Suppose that grade point averages of undergraduate students at one...