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An Earth satellite has a speed of 29500 km/hr when it is at its perigee, 230 km above Earth's surface. Find the apogee distance, the speed at apogee, and the period of revolution.
A person lies on a balance board as shown in the figure below. The person weights 80 kg, and the scaleunder the person's feetreads 30 kg. Compute the position of the person's center of gravity
A 300 lb bungee jumper wants to jump from the top of a 230 ft high bridge and be able to just touch the water below. what should the bungee cord's relaxed length, l, be for this jump
A boy catches - with bare hands and his arm extended - a 0.16 kg baseball coming directly toward him ar a speed of 25 m/s. what is the average force the boy's hand feel while catching the ball
In a certain particle accelerator, a current of .5mA is caried by a 5-MeV proton beam that has a radius of 1.5 mm. Find the power consumption of the accelerator
An object, mass 1.48 kg, moves in a horizontal circle with a radius of 1.52m. The object has an intial velocity of 28.0 m s-1. If the kinetic coefficient of friction between object and surface is 0.382.
In a football game, a tackle running at a constant speed of 5 m/s tackles a stationary receiver. What is the speed of the system's center of mass before the collision
If vector "B" is added to vector C =3.0i + 4.0J, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of vector "C". What is the magnitude of vector "B".
A solenoid is 8.93 cm long, 1.56 cm in diameter, and has 310 turns. find the magnetic flux through one turn of the solenoid
a 1cm high object is placed 20cm to the left of a converging lens f(focal length)=10cm. where is the final image and how high is it
Suppose that the linear density of the A string on a violin is 8.50 10-4 kg/m, What is the tension in the string
A 3000 pound car crashes into a concrete jersey barrier moving 3 sections (totaling 12,000 pounds) laterally 24 inches. How fast was the car going on impact.
Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. What is the dipole moment of the rod?
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