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A 3kg 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. The total momentum of the two balls after the collision is
20 left
20 right
4 right
zero
A bag of sugar weighs 5.00 lbs on Earth. What would it weigh in Newton’s on the Moon, where the free-fall acceleration is one-sixth that on Earth? Repeat for Jupiter, where g is2.64 times that on Earth. Discover the mass of the bag of sugar in kilogr..
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
An air puck of mass 0.29 kg is tied to a string and allowed to revolve in a circle of radius 1.4 m on a frictionless horizontal table. The other end of the string passes during a hole in the center of the table, and a mass of 0.7kg is tied to it. The..
A girl throws a 0.2 kg ball a distance of 6m straight up in the air (assume no air resistance). What is the kinetic energy of the ball as it leaves the girls hand
A -2.47 microC charge is placed at the center of a conducting spherical shell, and a total charge of +6.25 microC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor
A conventional mercury thermometer consists of a thin glass capillary filled with mercury. The capillary is enclosed in a protective glass cylinder. These mercury thermometer can be quite sensitive and very precise.
An object of mass M=3kg is attached to an ideal spring by spring constant k= 25 N/m. The 2nd end of the spring is attached to a ceiling.. The system is released and allowed to reach equilibrium. That wills b our initial position. After the system is ..
A long, straight wire has a uniform constant charge with linear charge density, -3.60nC/m. What uniform area charge density sigma is needed on the shell for the electric field to be zero outside the shell
Two tugboats pulls a disabled supertanker. Each tug exerts a constant force of 1.80x106 N, What is the total work they do on the supertanker
A 10uF capacitor is charged so that the potential difference between its plates is 10.0V. How much charge flows from one capacitor to the other when the capacitors are connected
What is the fundamental minimum uncertainty in a dimension of the position of the electron in the previous problem if its momentum is simultaneously deliberate to a precision of plus or minus one percent (two percent total)?
The drawing shows three particles far away from any other objects and located on a straight line. Find the net gravitational force
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