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football player kicks a ball with a speed of 22.1 m/s at an angle of 46° above the horizontal from a distance of 38 m from the goal line.
(a) By how much does the ball clear or fall short of clearing the crossbar of the goalpost if that bar is 3.05 m high? The ball the crossbar by.
(b) What is the vertical velocity of the ball at the time it reaches the goalpost?
A permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion
calculate the average acceleration in m/s^2 (meter per second square), using a coordinate system with the X axis in the direction of the car's original motion and the Y axis toward the side of the road to which the car skids.
a 1.5-kg mass attached to an ideal massless spring of spring constant of 20N/M oscillates on a horizontal, determine the total energy of the oscillating system
Two uniform infinite sheets of electric charge densities 41.0 C/m2 and -41.0 C/m2 intersect at a right angle
Three forces in the x-y plane act on a 5.80 kg mass: 15.30 N directed at 59o, 12.20 N directed at 170o, Calculate the direction of the resultant force using the same sign convention as above
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 25.2 m, Neglect air resistance and determine the kinetic energy of the ball at its highest point
A person pulls a 26kg suitcase using a rope attached to the suitcase at an angle of 28 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.20.
The small spherical planet called "Glob" has a mass of 6.54×10^18 kg and a radius of 6.29×10^4 m. An astronaut on surface of Glob throws a rock straight up. The rock reaches a maximum height of 2.00×103 m, above the surface of planet, before it falls..
In the days of horse-drawn wagons, iron tires used to be placed on wooden wagon wheels by heating the iron rims, what diameter will the tire have when it is heated to 680 oC
The interior temperature is kept at 5°C, while the temperature at the outside surface is 25°C. Explain by how much heat per second is being removed from the unit?
What is the length of a box in which the minimum energy of an electron is 1.1 x 10^-18J
A potters wheel is a disk of mass 3.50kg and radius .450m and is spinning freely around a vertical axis through its center with an angular speed of 14.0rad/s. what is the angular speed of the wheel+clay
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