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Four vectors A,B,C ,D and are shown (not to scale). Vector A has magnitude 23.0 and acts at an angle of 14.7 degrees with respect to the positive x axis. Vector B has magnitude 15.0 and acts at an angle of 61.4 degrees with respect to the positive x axis. What are the magnitude and direction of the resultant vector R , when the parallelogram law is applied to A and B?
what is the rms speed of the molecules. Graphically find out the distance and direction from Lake B to the base camp.
A nichrome toaster wire, initially at room temperature, carries 2.72A immediately after it's turned on. What's the temperature of the nichrome then
Determine the equation for velocity of the particle as a function of time. Create a graph of velocity vs. time for the particle, for the time interval 0
A bicycle wheel is rotating at 40rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.45rad/s2, What is the wheel's angular velocity, in rpm, 10s later
In a science fiction movie, a 100 g base ball travelling with a speed of 60 m/s and an electron travelling at a speed of 1.2 x 10^7 m/s, determine the momentum of the base ball
An atomic spectrum contains a line with a wavelength centered at 450nm, Estimate the lifetime of the excited state
A person walks first at a constant speed of 4.80 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 3.30 m/s. What is her average speed over the entire trip?
Copper wire has a breaking stress of about 3×10^8 N/m2. What is the highest load that can be hung from a copper wire of diameter 0.420 mm.
An aquarium contains a 5-cm layer of water (n = 1.33) floating on top of carbon tetrachloride (n = 1.461). If the angle of incidence into the water from the air is 30, what is the angle of refraction into the carbon tetrachloride?
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.20 m/s2 for 4.05 s, making straight skid marks 61.0 m long, all the way to the tree. With what speed does the car then s..
Find the maximum rms current allowed in the primary circuit.
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
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