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A satellite orbits Neptune 4000 km above its surface. Given that the mass of Neptune is 1.02 x 10^26 kg and the radius of Neptune is 2.48 x 10^7m, calculate the orbital speed of the satellite.
An elevator and its load have a combined mass of 1600 kg. Find the tension in the supporting cable when the elevator, originally moving downward at 11 m/s
A 68-{\rm kg} person rides in a 35-{\rm kg} cart moving at 11{\rm m/s} at the top of a hill that is in the shape of an arc of a circle with a radius of 45{\rm m}. What is the apparent weight of the person as the cart passes over the top of the hill
A small, 300 g cart is moving at 1.30 m/s on an air track when it collides with a larger, 4.00 kg cart at rest. What is the speed of the large cart after the collision
a physics professor claims in court that the reason he went through the red light lambda 660 nm was that due to his
A certain material is in a room at 27°C. If the absolutetemperature (K) of the material is tripled, its resistance doubles.(Water freezes at 273 K.) What is the value for a, the temperature coefficient of resistivity?
To throw the discus, the thrower holds it with a fully outstretched arm. Starting from rest, he begins to turn with a constant angular acceleration, what will be the speed of the discus at release
The image of a very distant car is located 17 cm behind a convex mirror. what is the radius of curvature of the mirror
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.891 rad/s. Calculate the total angular momentum of the system
You are given a slide with two slits cut into it and asked how far apart the slits are. You shine white light on the slide, What is the separation of the two slits
q1. a major-league pitcher can throw a baseball in excess of 41.3 ms. if a ball is thrown horizontally at this speed
A bicyclist starts from rest at the top of a hill and rolls down the hill without pedaling. what is the bicyclist's speed at the bottom of the hill
The coefficient of static friction between the wall and the rod is μs = 0.575. Determine the minimum distance x from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.
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