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A sphere of mass 30 kg and radius of 1.50 m is attached to a point on a smooth vertical wall by a string of length of 1.50 m which runs from a point on the surface of the sphere to a point on the wall. Find the tension in the string and the horizontal force applied to the sphere by the wall
All atoms of an element have the same Select one: a. mass number b. atomic number c. number of isotopes d. number of neutrons Which particle is the least massive? Select one: a. proton b. electron c. nucleus d. neturon An electron is a particle with ..
Suppose that a plane is flying due west with an airspeed of 222 km/h. What is the magnitude of the wind velocity
What are the magnitude and direction of the electric field? What is the shortest distance one can move to undergo a change in potential of 5.00 V?
Electromagnetic waves propagate through what? What is oscillating? What determines the velocity c in free space
Four solid plastic cylinders all have radius 2.75 cm and length 6.42 cm. Find the charge of each cylinder given the following additional information about each one.
Suppose a speck of dust in an electrostatic precipitator has 2.0×1012 protons in it and has a net charge of -53 nC (an extremely large charge for a small speck). How many electrons does it have
We can use the result from Part A to study a process of interest in atomic physics: a collision of two atoms that causes one of the atoms to ionize (lose an electron). In this case, is the energy needed to ionize one of the atoms called the ioniza..
A cubical box with sides of length 0.305 m contains 1.760 moles of neon gas at a temperature of 285 K. What is the average rate (in atoms/s) at which neon atoms collide with one side of the container? The mass of a single neon atom is 3.35x10-26 kg
A railroad car of mass 3.4 x 104 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
As in the previous problem (43), a solid block is suspended from a spring scale. If the reading on the scale when the block is completely immersed in water is 25.0 N, what are the block's volume and density
A 300g ball swings in a vertical circle at the end of a 1.3-m-long string. When the ball is at the bottom of the circle, the tension in the string is 12N
A uniform disk of radius 0.463 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
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