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A cancer patient is undergoing radiation therapy in which protons with an energy of 1.2 MeV are incident on a 0.25 kg tumor. How many protons are absorbed by the tumor? Assume QF = 1.
Two cars are traveling on a desert road, as shown below. After 5.0 s, they are side by side at the next telephone pole. the displacement of car A after 5.0 s
Engineers are designing a curved section of a highway. If the radius of curvature of the curve is 114 m, at what angle should the curve be banked
A car is driven east for a distance of 51 km, then north for 30 km, and then in a direction 31° east of northfor 29 km. Draw the vectordiagram and determine the total displacement of the car from its starting point.
A rocket is accelerated to speed 45300 m/s near Earth'ssurface (where Earth's radius is Re= 6370 km.), and it then coasts upward. Find the ratio of its speedto the escape speed on Earth
find out kinetic energy of ball at the highest point of motion.
Consider a bird that flies at an average speed of 10.7m/s and releases energy from its body fat reserves at an average rate of 3.70W, How far will the bird fly before feeding again
You have been asked to design a "ballistic spring system" to measure the speed of bullets. Find an expression for the bullet's initial speed
A foam ball of mass 0.150 g carries a charge of -2.00 nC. The ball is placed inside a uniform electric field, What are the magnitude and direction of the electric field
How many turns of wire would be required to make a 130-mH inductor out of a 29.0-cm-long air-filled solenoid with a diameter of 5.1cm ?
A solid spherical ball rolls 7.0 meters without slipping along a ramp inclined at 35 degrees to the horizontal
consider an object with s12cm that produces an image with s115cm. note that whenever you are working with a physical
A 1100- kg car rolling on a horizontal surface has speed v= 50 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring?
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