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Two circular hoops, with masses and radii in the ratios m2/m1=4 and R2/R1=4, rotate with angular speeds in the ratio ?2/?1=2. What is the ratio of the kinetic energies K2/K1?
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71474 km). What is the period of the spacecraft's orbit
A 12.0 g rifle bullet is fired with a speed of 740 m/s into a ballistic pendulum with a mass of 8.00 kg, suspended from a light and long cord. Compute the max height through which the block would rise
There are no results for For a transformer with Vp=120Vrms, and turn ratio of 8 to 1 with a RL of 500. What is the secondary ratio
The blood speed in a normal segment of a horizontal artery is 0.124 m/s. An abnormal segment of the artery is narrowed down by an arteriosclerotic plaque to 1/3 of its normal cross-sectional area. What is the difference in blood pressure between the ..
Physics: Solve a population doubling question, An easy way to find the time it takes for compound interest to double an investment is to divide 72 by the interest rate in percent.
A 1870 kg truck traveling north at 37 km/h turns east and accelerates to 52 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?
Two children ride on a merry-go-round. One is 2 m from the axis of rotation and the other is 4 m from it. Which child has the larger linear speed and acceleration
Two objects with masses of 3.00 kg and 5.00 kg are connected by a light string that passes over a frictionless pulley, find the distance each object will move in the first second of motion if both objects start from rest
A 82.7 kN car is travelling at 57.7 mph when the driver decides to exit the freeway by going up a ramp. computeb the magnitude of the average drag force exerted on the car
An ambulance has a siren of frequency 700 Hz. If the ambulance is moving at a speed of 60 miles per hour, what will be the frequency heard by a man standing on the sidewalk as the ambulance approaches him
An electromagnetic wave with a frequency of 4.60×10^14 Hz propagates with a speed of 2.14×10^8 m/s in a certain piece of glass. Find the wavelength of the wave in the glass
four point charges are at the corners of a square of side a as shown in the figure below. determine the magnitude and
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