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A planet in another solar system orbits a star with a mass of 4.0×1030 kg. At one point in its orbit it is 250×106 km from the star and is moving at 35km/s.Take the universal gravitational constant to be 6.67 × 10−11 m2/s2 · kg andcalculate the semimajor axis of the planet’s orbit. The result is:A. 79 × 106 kmB. 160 × 106 kmC. 290 × 106 kmD. 320 × 106 kmE. 590 × 106 km
You are given three capacitors, with capacitances 0.0075 µF, 12000 pF, and 0.029 µF, what is the maximum and the minimum voltage difference would they make when charged to 130 µC
A child and a sled with a combined mass of 50kg slide down a frictionless slope. If the sled starts from rest and has a speed of 3.oo m/s at the bottom, what is the height of the hill
An unstable particle with a mass equal to 3.34 ? 10-27 kg is initially at rest. Find the masses of the fragments
Which of the following describes an object with nonzero net force acting on it?
An engine of the orbital maneuvering system (OMS) on a space shuttle exerts a force of 2.64×104N j^ over a time interval of 4.50s, What is the impulse of the force for this time interval of 4.50 s
A binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This means that the masses of two stars are equal. Suppose the orbital speed of each star is 285 km/s and the orbital period of each..
A skier is accelerating down a 30 degree hill at 3.60 m/s^2. How long would it take her to reach the bottom of the hill, assume she starts from rest and accelerates uniformly, if elevation change is 170m.
A rocket of mass 3.52 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 61.0° above the horizontal and has a magnitude of 8.86 × 106 N. estimate the direction of the rocket's acceleration
For your final exam in electronics, you're asked to build an LC circuit that oscillates at 15kHz, What values of inductance and capacitance must you use
A ?ywheel in the form of a heavy circular disk of diame
The pilot (mass m) of an aerobatic glider (an airplane with no engine) flies her aircraft in a loop (a vertical circle of radius R) so that her head always points toward the inside of the loop. What will the scale read at the lowest point of the lo..
The two headlights of an approaching automobile are 1.5 m apart. Assume that the pupil diameter of theobserver is 4.4 mm, find At what maximum distance will this occur
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