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A 61 kg boy and a 42 kg girl use an elastic rope while engagedin a tug-a-war on a frictionless icy surface. If theacceleration of the girl toward the boy is 2.7 m/s2, determine the magnitude of the acceleration of the boy toward the girl. Answer in units of m/s2.
The radii of curvature of the surfaces of a thin converging meniscus lens are R1= 12.0 cm and R2 = 28.0 cm, Compute the position and size of the image of an object in the form of an arrow 5.00 mm tall, perpendicular to the lens axis
W hat least energy an incident alpha particle must have to penetrate the gold nucleus. What is the direction of the carbon atom after the collision.
a 15-kg block rests on a level frictionless surface and is attatched by a light string to a 5.0-kg hanging mass, what is the tension in the connecting string
A nonconducting solid sphere of radius 10.1 cm has a uniform volume charge density. What is the sphere's volume charge density
A 224Ra atom (Z=88, Atomic mass = 224.020186 amu) consists of protons (Mass = 1.00728 amu), Calculate the binding energy per nucleon
The brakes are applied to a car traveling on a dry, level highway. A typical value for the magnitude of the car'sacceleration is 5.35 m/s2. If the car's initial speed is 29.7 m/s, how long does it take to stop and how far does it travel, starting ..
Which state is best illustrates kinetic friction
As a 1.00 cm diameter plunger reduces the height of the column of air inside the chamber from 7.00cm down to 0.50cm, the temperature inside increases from 20C to 210C. Determine the air pressure inside the chamber (in atm) after compression if the..
A flywheel in the form of a uniformly thick disk of radius 1.68 m, Calculate the constant torque required to stop it in 4.50 min
In a new (inelastic) collision, the same two bumper cars with the same initial velocities now latch together as they collide. What is the final speed of the two bumper cars after the collision
Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. What stopping potential would be observed when using light from a red lamp (?=668.0nm)
To start her lawn mower, Julie pulls on a cord that is wrapped around a pulley. The pulley has a moment of inertia about its central axis of I=0.570 kg(m2), How much tension must the rope exert
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