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A 2-kg ball traveling to the right with a speed of 4 m/s collides with a 4-kg ball traveling to the left with a speed of 2 m/s. what is the total momentum of the two balls after the collision ?
A mass of 0.4 kg hangs motionless from a vertical spring whose length is 0.95 m and whose unstretched length is 0.65 m. Next the mass is pulled down to where the spring has a length of 1.10 m and g
Use the worked example above to help you solve this problem. what is the total displacement of the jetliner between touchdown on the runway and coming to rest?
A satellite has a mass of 6448 kg and is in a circular orbit 4.83 × 105 m above the surface of a planet. The period of the orbit is 2.4 hours. The radius of the planet is 4.41 × 106 m. W
A 0.35 m rod with uniform mass distribution runs along the x axis with its left end at the origin. A 1.8 m rod with uniform mass distribution runs along the y axis with its top end at the origin. F
"Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 366 km above the earth's surface, while that for satellite B is at a height of 730 km. Find the o
Find numerical values for t_max and D_start in seconds and meters for the (reasonable) values v_0 = 60; rm{mph} (26.8 m/s) and a = 50 ;rm{m/s^2}.
An artillery shell is fired with an initial speed of 1700 m/s (approximately five times the speed of sound) at an initial angle of 65° to the horizontal.
The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.35, calculates the speed of the Toyota at impact. What was that speed?
A skier moving at 4.60 encounters a long, rough horizontal patch of snow having coefficient of kinetic friction 0.220 with her skis. How far does she travel on this patch before stopping?
When kicked, the ball leaves the ground with a velocity of 20.0m/s at an angle of 53 degrees to the horizontal. does it fall short or does it clear the crossbar?
A rifle is aimed horizontally at a target a distance of d away. If the bullet leaves the muzzle at a speed of v, it will miss the target by a vertical distance of what?
A 5.00 g lead bullet traveling at 370 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is
A 1.0 kg beaker containing 2.0 kg of oil (density=916kg/m3) rests on a platform scale. A 2.0 kg block of iron is suspeneded from a spring scale and is completely submerged in the oil, as shown abov
Similarly, the monitored sound intensities of TV commercials are louder than the sound of regular programming; yet don't exceed the regulated intensities. At what frequencies do advertisers concentr
you have a mass of 81 kg and are on a 34-degree slope haning on a cord with a breaking strength of 192 newtons. what must be the coefficient of static friction between you and the surface for you t
The radius of curvature of a convex mirror is 1.90 x 102 cm. An object that is 12.0 cm high is placed 47.5 cm in front of this mirror. Determine (a) the location and (b) the height of the image.
A block of mass 300 kg slides on a frictionless plane inclined at 32?with the horizontalunder the in?uence of a restraining force of 1376 N acting parallel to the incline and upthe incline. The acc
the two upper front teeth of a person exert a total force of 30N on a piece of steak. if the biting edge of each tooth measures 10 mm x 1.0 mm, what is the pressure on the steak?
An artillery shell is fired horizontally at a speed of 383 m/s from a 122 meter high cliff. How far down range from the canon does the artillery shell hit the ground?
A 27 kg chair initially at rest on a horizontal floor requires a 376 N horizontal force to set it in motion. Once the chair is in motion, a 345 N horizontal force keeps it moving at a constant velo
A certain wave has a frequency of 500 rev/s and speed 350 m/s. What is the distance between two points with a phase difference of 600?
Where does the package strike the ground relative to the point directly where it was released? What is the vertical component of velocity just before it hits?
Your camera has a 53.0 mm focal length lens. How far from the camera should your friend stand in order to produce a 36.0 mm-tall image on the film?
Two equally charged, 1.00 g spheres are placed with 2.00 cm between their centers. When released, each begins to accelerate at 225 m/s^2. What is the magnitude of the charge on each sphere?