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The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m at an angle of 20, B = 11.0 m at an angle of 90, C = 12.0 m at an angle of 35, and D = 17.0 m at an angle of 90. Determine the directional angle for the resultant that occurs when these vectors are added together.
A 500.0 g mass at the end of a spring vibrates 3.0 times per second, What is the maximum velocity of this mass
Explain in terms of Newton's law each of the following situations. How does a bumblebee hover in midair
A heavy sled is being pulled by two people as shown in the figure. The coefficient of static friction between the sled and the ground is ?s = 0.571, and the kinetic friction coefficient is ?k = 0.467. what is the sled\'s acceleration
The magnitude of the air resistance that opposes its downward motion is 258 N. Explain what is the magnitude of the acceleration of the rock?
A 1.0--diameter oil droplet (density 900 kg/m^3) is negatively charged with the addition of 28 extra electrons. What is the surface charge density of the plane
A train is traveling down a straight track at 29 m/s when the engineer applies the brakes, resulting in an acceleration of 1.0 m/s2 as long as the train is in motion. How far does the train move during a 58-s time interval starting at the instant ..
A proton is located at x=1.0nm, y=0.0nm and electron is located at x=0.0nm, y=4.0nm. Find the attractive Coulomb force between them
On an air track, a 402.0g glider moving to the right at 2.25m/s collides elastically with a 498.0g glider moving in the opposite direction at 2.90m/s. Find the velocity of second glider after the collision
An ocean thermal-energy power plant takes in warm surface water at a temperature of 26oC, What is the maximum possible efficiency of this power plant
A solenoid is to have an inductance of 0.265 mH, a cross-sectional area of 5.58 10-4 m2, and a length of 40.4 cm, How many turns per unit length should it have
A steady beam of alpha particles (q = + 2e, mass m = 6.68 x 10-27 kg) traveling with constant kinetic energy 26 MeV carries a current of 0.34 µA. If the beam is directed perpendicular to a flat surface, how many alpha particles strike the surface i..
A cylinder with moment of inertia 18.8 kg m2 rotates with angular velocity 7.85 rad/s on a frictionless vertical axle. Show that energy is lost in this situation by calculating the ratio of the final to the initial kinetic energy
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