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A single roller-coaster car is moving with speedv0 on the first section of track when it descends a 5.1 meter deep valley, then climbs to the top of a hill that is 5.2 meter above the first section of track. Suppose any effects of friction or of air resistance are negligible.
(a) Find what is the minimum speed v0 required if the car is to travel beyond the top of the hill?
(b) Can we affect this speed by changing the depth of the valley to make the coaster pick up more speed at the bottom?
A hiker starts at his camp and moves the following distances while exploring his surroundings: 60.0 m north, 2.95 102 m east, Find his resultant displacement from camp
An object weighing 335 N in air is immersed in water after being tied to a string connected to a balance. Find the density of the oil
Consider a Hydrogen atom with the electron in the n = 8 shell. What is the energy of this system, How many subshells are in this shell
A circular-motion addict ofmass 85 kg rides aFerris wheel around in a vertical circle of radius 10 m at aconstant speed of 5.9 m/s. What is the period of the motion?
The heaviest invertebrate is the giant squid, which can have a weight of about 2.3 tons spread out over its length of 60 feet. What is its weight in newtons
A metal sphere with radius r_a is supported on an insulating stand at the center of a hollow, metal spherical shell with radius r_b. There is charge + q on the inner sphere and charge - q on the outer spherical shell. Take potential V to be zero w..
A block (m = 3 kg) is sitting on a horizontal frictionless table. A spring (k = 500 N/m) is mounted at the side of this block so that when the block is used to compress the spring, with what velocity does it slide across the table
Consider two wind instruments with pipes of the same length, but one is open and the other is closed on one end. what is the fundamental frequency of the closed pipe
Antenna A and Antenna B emit coherent radio waves. Antenna A is 125m due north of Antenna B. Constructive interference occurs 175m due east of antenna B. Determine the three longest possible wavelengths being emitted by the antennae.
suppose that you want to take a photograph of yourself as you look at your image in a mirror 3.8 m away.for what
Two coils of wire are placed close together. Initially, a current of 2.27 A exists in one of the coils, What is the mutual inductance of the two-coil system
A block of mass M hangs from a spring having spring constant k = 12 N/m and oscillates up and down with simple harmonic motion. What is the mass of the block
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