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A large asteroid of mass 77100 kg is at rest far away from any planets or stars. A much smaller asteroid, of mass 610 kg, is in a circular orbit about the first at a distance of 311 meters as a result of their mutual gravitational attraction. What is the speed of the second asteroid? ____________m/s Now suppose that the first and second asteroids carry charges of 3.18 C and -3.18 C, respectively. How fast would the second asteroid have to be moving in order to occupy the same circular orbit as before?_________m/s
The average velocity of water at 20°C in a tube of radius 0.°m is 0.2 m s. determine is the flow laminar or turbulent
A block of mass 10 kg rests on a horizontal surface. The coefficient of sliding friction is 0.1. What is the mass of the pulley if it is a solid cylinder
A projectile is fired with an initial velocity of 20 m/s at 50° above horizontal. At the projectile's highest point, what is its velocity?.What is its acceleration?
After hitting a long fly ball that goes over the right fielder's head and lands in the outfield, the batter decides to keep going past second base and try for third base. how much work was done on the player by friction
An airplane flies 200 km due west from city A to city B and then 315 km in the direction of 33.0° north of west from city B to city C.
For the following questions, express your answers in terms of q. (a) How much charge ends up on sphere C? (b) What is the total charge on the three spheres before they are allowed to touch each other? (c) What is the total charge on the three sphe..
A room with a pine ceiling measured 10 m x 6 m x 2 cm thick. On a cold day the temperature on inside of the ceiling is T1 = 24 oC and in the attic T2 = 7 oC, find the interface temperature for the pine and insulation
A solid ball of mass 0.25 kg and radius 0.1 m rolls without slipping 4 m down an incline that makes an angle of 25 degrees with a horizontal. Find the angular acceleration of the ball
A jet pack is turned on for 10 seconds and performs 1500 joules of work to move an astronaut in space who was initially at rest. What the power of the jet pack in watts
If we can treat the atom as a 'box' of size 20 nm for an electron, what wavelengths could this electron have
the equation for the frequency f of oscillation of simple pendulum is f 12p vglwhere l is the length of the pendulum
A golf club makes impact with a 0.045 kg golf ball during a drive off the tee. The loft angle of the club (the angle between the club face and vertical) is 10 degrees. What is the direction of this resultant force
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