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An object is launched at 30 with initial speed of v = 30m/s. a) When does it reach the highest point of the projectile? b) What is the range of the flight? c) What the maximum height it reaches? 30. An object is moving with constant speed of v = 30 m/s along circular path of radius R = 1m. a) What is the time of one revolution? b) What is the acceleration? c) What is the direction of acceleration? i) toward center ii) tangent to the circle iii) outward the circle iv) all the above
Sodium ions (Na+) move at 0.843 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
A bar magnet is oriented with its magnetic dipole moment at 50.7° to the direction of a 0.0983-T magnetic field, Find the magnitude of the magnet\'s magnetic dipole moment
q1. a roller-coaster car speeds down a hill past point a where r1 10.0 m and then rolls up a hill past point b where
A rectangular loop (area=0.15m2) turns in a uniform magnetic field with B=0.20T. what is the magnitude of the emf induced in the loop
A parallel-plate capacitor has fixed charges q and -q. The seperation of the plates is then doubled. How much work must be done in doubling the plate seperation from d to 2d
A sphere of aluminum 11.3 cm in diameter is suspended in oil (density = 1 grams/cm3). Find the tension in the supporting string in Newtons
question1. nbspgravity you shouldnrsquot need a calculator for these problems a sum up the universal law of gravitation
two identical charged objectsare hanging from 26.8 cm threads from the same point on the cieling. what is the charge on each object
A bicycle is turned upside down while its owner repairs a flat tire. A friend spins the other wheel of radius 0.4 m and observes that drops of water fly off tangentially. Find the angular deceleration of the wheel
A typical human eye is nearly spherical and usually about 2.5 cm in diameter. Find the approximate size of each image (coin and friend) on her retina
a metal plate of mass (m=20kg) slides down a slope of height (h=10 meters) and angle (theta=30Â °). what is the magnitude of the work done by friction
A cylinder has an inner radius of 3.50cm and a height of 58.0cm and is filled with water. What is the volume of water that fills the cylinder
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