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A uniform electric field of magnitude 422 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.60 cm.
(a) What is the work done by the field on the electron?
(b) What is the change in potential energy associated with the electron?
(c) What is the velocity of the electron?
Two vehicles approach a right angle intersection and then collide. After the collision, they become entangled. If their mass ratios were 1:3 and their respective speeds as they approached were both 13 m/s, find the magnitude and direction of the fina..
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.1 L in the warm store at 72 μF. Obtain by how much has the volume decreased
Wavelengths of light from a distant galaxy are found to be 0.46% longer than the corresponding wavelengths measured in a terrestrial laboratory. What speed is the galaxy receding
A sphere of radius r starts from rest and rolls without slipping along a curved surface, dropping through a verticaldistance of 0.411 m. Find the final speedv of the sphere's center of mass.
A large gate weighing 225 N is supported by hinges at the top and bottom of the wooden frame, and is further supported by a wire. (Assume the positive x-direction is to the right and the y-direction is upward.)
A cruise ship sails 150 km east, then 250 km northwest, and then 100 km at 30° east of south, Find the magnitude and the direction of the last leg of the journey
What is the application of photo electric effect? What is line spectrum and continuous spectra and what are their applications? What are the applications of a Laser?
A gymnast with mass m1 = 41 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 108 kg and length L = 5 m. Each support is 1/3 of the way from each end. at least the gymnast stands at the left end of..
A small, spherical bead of mass 3.05 g is released from rest at t = 0 in a bottle of liquid shampoo. The terminal speed is observed to be vT = 1.80 cm/s. Find the value of the resistive force when the bead reaches terminal speed
a plane has an airspeed of 142 ms. a 16.0 ms wind is blowing southward at the same time as the plane is flying. if the
q1. a book with a mass of 2.0 kg is held in equilibrium on a board with a slope of 60.0 degrees by a static frictional
Two objects attract each other gravitationally with a force of 3.0×10-10 N when they are 0.60 m apart. Their total mass is 4.0 kg. Determine their individual masses.
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