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A small rocket maintains a constant thrust as to produce an acceleration of 2 m/s^2. Assuming it starts from rest and has a total rest mass of Mo = 4000 kg, determine the maximum achieved rocket thrust (force) as it achieves a speed of 0.9 c as measured from the earth frame?
Calculate the minimum required initial velocity for a home run, for baseballs hit at the angles 10 degree, 20 degree, 30 degrees, and 40 degrees from the horizontal
An observer, whose eyes are 1.99 m above the ground, is standing 35.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 23.0° above the horizontal. Ho..
A small glass bead has been charged to +30.0nC. A metal ball bearing 1.30cm above the bead feels a 1.90×10?2N downward electric force. What is the charge on the ball bearing?
Unpolarized light is incident on a system of three polarizers. The second polarizer is oriented at an angle of 30 degrees with repect to the first, what is the intensity of the incident light
Three balls A, B, and C, with masses of 2.7 kg, 1.1 kg, and 1.2 kg, respectively, are connected by massless rods, find the acceleration of the center of mass of the three-ball system
A solid uniform disk of mass M = 9 kg and radius R = 29 cm rests with its flat surface on a frictionless table, What is the total kinetic energy of the disk
Three point charges are located on the positive x-axis of a coordinate system. Charge q1 = 2.0 nCis 2.0 cm from the origin, What is the net force
An airplane pilot wishes to fly due west. A wind of 72.0 km/h is blowing toward the south, What is the speed of the plane over the ground
A 1.8 hp electric motor provides a force of 382 N to maintain a constant speed for a long rope attached to a pulley lifting a bucket of coal from a mining shaft
Use the following values for mass and charge: an electron has mass me = 9.11x10-31 kg and charge -e, a proton has mass mp = 1.67x10-27 kg, What is the kinetic energy of the electron
Sodium coolant with a specic activity of 0.05 Ci/cm3 passes through a long pipe 8 in. in diameter. estimate the thickness of a cylindrical concrete shield
Two resistors A and B are connected in series to a 9.0 V battery; the voltage across resistor A is 6.0 V. What are the resistances of A and B
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