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A horizontal spring that is lying on a frictionless table is attached at one end to a wall and at the other end to a box. The box is pushed so that the spring compresses by 9.00 cm, then it is released and undergoes simple harmonic motion with a frequency of 4.36 Hz. What is the box's speed when the spring is stretched by 0.0450 m from its original length?
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.00 106 m/s. What is the distance of closest approach
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle. The magnitude of each of the charges is 4.0 µC, and the lengths of the sides of the triangle are 4.4..
A spherical capacitor with a 1.20 mm gap between the spheres has a capacitance of 60.0 pf. What are the diameters of the two spheres
Find the distance between adjacent dark spots from a double slit diffraction pattern if the wavelength of light is 500 nm, the distance between the slits is 1 mm
Neutron stars consist only of neutrons and have unbelievably high densities. If a dime (V = 2.0 x 10-7 m3) were made from this material, determine how much would it weight (in pounds)
How much energy is transported across a 1.30 cm2 area per hour by an EM wave whose E field has an rms strength of 35.3mV/m
a silvered sphere is used as a christmas tree ornament has a diameter of 0.08 m. a girl holds the ornament 0.2m from
11 an experimenter uses an x-ray spectrometer nbspwhich has a rotating drum scale a pointer to measure angles. a view
A stone with a mass of 0.80 kg is attached to one end of a string 0.900 m long. The string would break if its tension exceeds 600-N.
A positive charge q=3.2 x 10^-19 C moves with a velocity v=(2i + 3j - k)m/s through a region where both a uniform magnetic field and a uniform electric field exist. What angle does the force vector make relative to the positive x axis?
A circular loop of wire with a radius of 15.0 cm and oriented in the horizontal xy-plane is located in a region of uniform magnetic field. A field of 1.2 T is directed along the positive z-direction, which is upward.
The initial temperature of 150g of ice is -20 degrees Celsius. How much additional heat is required to heat the water
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