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At a time when mining asteroids has become feasible, astronauts have connected a line between their 3310-kg space tug and a 6720-kg asteroid. They pull on the asteroid with a force of 392 N. Initially the tug and the asteroid are at rest, 433 m apart. How much time does it take for the ship and the asteroid to meet? Number Units
An object has a kinetic energy of 317 J and the momentum of magnitude 24.0 kg · m/s.
What speed must she have at point 3, so that the normal force at the top has the same magnitude as it did at the bottom.
A woman on a bridge 104 m high sees a raft floating at a constant speed on the river below, She drops a stone from rest in an attempt to hit the raft, Find the speed of the raft
In an experiment like you are going to do in Investigation 1 of lab this week, you count the number of beta rays from a 137Cs source. What is the average number of counts
Two small metallic spheres, each of mass 0.20 g, are suspended as pendulums by light strings from a common point, what is the magnitude of the charge on each sphere
A baseball (m = 155 g) approaches a bat horizontally at the speed of 40.5 m/s (91 mi/h) and is hit straight back at a speed of 45.5 m/s (102 mi/h).
Two objects are connected by a light string that passes over a frictionless pulley, Find the magnitude of the accelerations of the objects
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 platinum resistance thermometer has resistances of 190.0 when placed in a 0°C ice bath and 234.8 when immersed in a crucible containing a melting substance. What is the melting point of this substance
Helium gas with a volume of 2.60L under a pressure of 1.70atm and at a temperature of 43.0 oC is warmed until both the pressure and volume of the gas are doubled. How many grams of helium are there
A 55 kg person is riding in a hot air balloon and scale shows this person's weight too be 549N. the acceleration of gravity at the location of the balloon is known to be 9.79 m/s/s.
An artificial earth satellite has a circular orbit of radius 7.10 multiply.gif 106 m in an equatorial plane. Compute the (constant) speed of the satellite
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