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Kenny throws a basketball which has an initial speed v0. When the ball gets to its minimum speed sometime before striking the ground, its speed is v0/6. What was the initial angle of the ball?
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 5.24 m/s^2.
A cannonball is catapulted toward a castle. The cannonball velocity when it leaves the catapult is 40 m/s at an angle of 37%uF0B0, What is the cannonball%u2019s impact speed when it lands
A nearsighted person wears contacts with a focal length of ? 6.5cm, what is her uncorrected far-point distance
Transverse waves with a speed of 59.0 m/s are to be produced on a stretched string. A 4.95-m length of string with a total mass of 0.0600 kg is used. (a) What is the required tension in the string? N (b) Calculate the wave speed in the string if t..
A 22 g dried sample of food is placed in an aluminum bomb calorimeter and burned completely. The device consists of an aluminum chamber (0.50 kg) containing the sample, how many kilocalories did the food make available
A force does +130J of work while it acts on a moving object and its direction is in the same direction as the object's displacement. How much work does this force do as the angle between it and the object's displacement is 56°.
A current travels northwards along a power line, in the downwards magnetic field of the earth. In which direction will the magnetic force on the wire be directed
An 800-kHz radio signal is detected at a point 4.5 km distant from a transmitter tower. What is the magnetic field amplitude of the signal at that point
q1. a force vector has a magnitude of 569 newtons and points at an angle 41o of below the positive x axis. what is a x
About 1350 W/m2 of electromagnetic energy reaches the upper atmosphere of the earth from the sun, which is 1.5 × 1011 m away. estimate the average power output of the sun
Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. What is the weight of the landing craft in the vicinity of Callisto's surface
A fast tortoise runs with a speed of 10.0 cm/s and a hare runs 20.0 times faster. They start a race together but the hare stops to rest for 2.00 minutes. What distance did the hare cover
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