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A planet of mass m = 1.35 × 10^24 kg is orbiting in a circular path a star of mass M = 7.35 × 10^29 kg. The radius of the orbit is R = 8.65 × 10^7 km. What is the orbital period (in earth days) of the planet Tplanet?
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 81.0 m/s at ground level. The engines then fire.
A wall clock has a second hand 20.0 long. What is the radial acceleration of the tip of this hand?
Three charges are on the y-axis. Two of the charges, each ?2q, are locatedy=±d, and the third charge, +4q, Derive an expression for the electric field at a point P on the x-axis
The velocity of an airplane with respect to the ground is 2.00 x 102 m/s at an angle of 30.0 degrees NORTH of EAST. What is the velocity of the air with respect to the ground
The wheel of a car has a radius of 0.320 m. The engine of the car applies a torque of 288 N · m to this wheel, What is the magnitude of the static frictional force
Graphing either versus or versus gives a straight line. In the graph shown above, we chose to plot on the vertical axis, find the magnitude of the crankshaft's angular acceleration
Four charges are located in a plane as follows: q1 = -5 uC at (4,0) m; q2 = -3 uC at (4,4) m; q3 = -4 uC at (0,4) m; q4 = -2 uC at (0,0) m. Find the magnitude and direction of the resultant field at (2,2)
A uniform solid sphere rolls without slipping down a 15° inclined plane. What is the acceleration of the sphere's center of mass
A smWhat is the speed of the large cart after the collision?all, 100g cart is moving at 1.20m/s on an air track when it collides with a larger, What is the speed of the large cart after the collision
A projectile is fired straight upward from the Earth's surface at the South Pole with an initial speed equal to one third the escape speed. What is the altitude of the projectile at this instant
Two 1.7 kg masses are 1.7 m apart on a frictionless table. Each has +1.1 µC of charge. What is the initial acceleration of the mass if it is released and allowed to move
Three capacitors are connected in series. The equivalent capacitance of this combination is 2.60, What is the third capacitance (in F)
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