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Initially, a particle is moving at 4.90 m/s at an angle of 35.0o above the horizontal (+x axis). Two seconds later, its velocity is 5.67m/s at an angle of 50.00 below the horizontal. What was the particle's average acceleration during these 2.00 seconds?Find x component and y component.
A body with initial velocity 8 m/s moves along a straight line with constant acceleration and travels 2.7 m/s in 3 s. For the 40 s interval, find the acceleration, the average velocity, the final velocity
Suppose a rocket-propelled motorcycle is fired from rest horizontally across a canyon 1.30 km wide. At what speed does the motorcycle land
A wire 6.10m long with diameter of 2.00mm has a resistance of 0.0280?. Find the resistivity of the material of the wire
A wheel with rotational inertia 1.27 kg m2 is rotationwith an angular speed of 824 rev/min on a shaft whose rotationalinertia is negligible. What fraction of the original kinetic energy is lost
A heat engine operates in a Carnot cycle between 83.0°C and 353°C. It absorbs 21004 J of energy per cycle from the hot reservoir. What is the mechanical power output of this engine
A certain species of ionized atoms produces an emission line spectrum according to the Bohr model, but the number of protons Z in the nucleus is unknown. Obtain the next-to-the-longest wavelength in the series of lines
A football player pushes a 380 kg tackling sled with a force of 750 N. If the resulting acceleration of the sled is 1.5 m/s2, what is the magnitude of the dynamic friction force opposing the motion of the sled? what is the coefficient of dynamic f..
a 1250 kg car is traveling around a banked curve at a speed of 23.5 m/s. the curve is banked 24 degrees to the horizontal. draw a free body diagram for the car, including all forces acting on it. clearly label and name each force
A 750 g aluminum pan is removed from the stove and plunged into a sink filled with 10.0 liters of water at 20.0° C. What was the original temperature of the pan
A passenger walks from one side of a ferry to theother as it approaches a dock. What is the magnitude of the ferry's velocity relative to the water
Suppose that you loft the ball with an initial speed of v = 16.2 m/s, at an angle of ? = 49.4° above the horizontal. With what minimum average speed must he move
A positron is a particle with the same mass and magnitude charge as an electron, but a positron has a positive charge. If a positron and electron are held a distance of 0.900 pm apart and then both are released from rest, when they are 0.324 pm away ..
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