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Speedboat A negotiates a curve whose radius is 156 m. Speedboat B negotiates a curve whose radius is 238 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of the boats?
Suppose the initial speed of the proton in the figure is increased. Does the radius of each half-circular path segment increase, decrease, or stay the same?
The ideal gas law relates the temperature, pressure and volume of an ideal gas. How many molecules of gas are inside the balloon
You are studying guitar strings and are able to measure a few of (but not all) the standing wave frequencies for a particular string. what is the highest possible value for the fundamental frequency
A force vector points at an angle of 50.6° above the +x axis. It has a y component of +280 newtons. Calculate the magnitude of the force vector.
An object of mass m=.200 kg is attached to a spring which is vibrating on a horizontell frictionless table. The spring has a spring constant k= 545 N/m.
a horizontal wire of length 0.58 m carrying a current of 2.5 a is placed in a uniform external magnetic field. when the
A student sits on a freely rotating stool holding two weights, each of mass 2.90 kg. When his arms are extended horizontally, Find the new angular speed of the student
A particle with charge 94.5 nC is moving in the region where there is a uniform magnetic field of magnitude 0.45 T pointing in the negative x-direction. What is the magnetic field vector in vector notation
Susan's 12.0kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30? above the floor. Use work and energy to find Paul's speed after being pulled 3.20m
An alpha particle (charge +2e) moves with velocity v = 5.0i - 3.0j in a magnetic field B = -4.0i + 2.5j, What is the magnetic force on the alpha particle
When an electron passes through the origin (x = 0, y = 0, z = 0), its velocity has components ofvsubx = 0 m/s, vsuby = +5000 m/s, find the maximum distance the electron gets from the origin in its subsequentmotion
an rl circuit in which the inductance is l 4.00 h and the resistance is r 5.00 omegacap.gif is connected to a 21.0 v
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