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A 200 resistor has a current of 1.5A running through it and is connected in series with a 300 resistor. what is the emf of the battery to which the resistors are connected?
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Question: A speed skater moving across frictionless ice at 9.2 m/s hits a 5.0 m wide patch of rough ice. She slows steadily, then continues on at 5.8 m/s. What is her acceleration on the rough ice? The response must be t ...
Question: R= 1.097*10^7 m^-1 A) What is the wavelength of the line corresponding to n=4 in the Balmer series? B) What is the wavelength of the line corresponding to n=5 in the Balmer series? C) What is the smallest wavel ...
Question: A small button placed on a horizontal rotating platform with diameter 0.330m will revolve with the platform when it is brought up to a rotational speed of 45.0 rev/ min. provided the button is a distance no mor ...
Question: Planet X orbits the star Omega with a "year" that is 180 earth days long. Planet Y circles Omega at four times the distance of Planet X. How long is a year on Planet Y in earth days? The response must be typed, ...
Question: A slab of insulating material of uniform thickness d, lying between -d/2 to +d/2 along the x axis, extends infinitely in the y and z directions. The slab has a uniform charge density Ï. The electric field is z ...
Question: In a science museum, a 110kg brass pendulum bob swings at the end of a 15-meter-long wire. The pendulum is started at exactly 8:00 a.m. every morning by pulling it to 1.5m the side and releasing it. Because of ...
Question: A student standing in a canyon yells "echo," and her voice produces a sound wave of frequency of f = 0.56 kHz. The echo takes t = 3.5s to return to the student. Assume the speed of sound through the atmosphere ...
After deploying her parachute, a skydiver falls through the air with a constant speed of 8.00 m/s . As she falls, there is a constant breeze blowing west at 2.50 m/s. At what angle from the downward vertical does the par ...
Question: A projectile is launched from ground level to the top of a cliff which is 195 m away and 135 m high. If the projectile lands on top of the cliff 4.7 s after it is fired, find the initial velocity of the project ...
Question: At one point in a pipeline the water's speed is 3.00 m/s and the gauge pressure is 5.00 x 10 4 Pa. Find the gauge pressure at a second point in the line, 11.0 m lower than the first, if the pipe diameter at the ...
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