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A 1.2 kg coffee cup is accelerated at 3.0 m/s^2 in the direction shown, over a frictionless horizontal surface. The acceleration is caused by three forces, but only two of which are shown. The magnitudes of the given forces are as follows: F1= 10N and F2= 20N. Find the magnitude and direction (with respect to the positive x axis) of the third force, F3.
Two forces, F1=(-3.0i-4.45j)N and F2=(-2.75-5.50j)N, act on a particle of mass 1.50kg that is initially at rest at coordinates (-2.05m,3.75m). what are the components of the particles veloctiy at t=10 seconds
The Hale Telescope The 200-inch-diameter concave mirror of the Hale telescope on Mount Palomar has a focal length of 16.9, What is the magnification of her image
How does the solar nebula theory describe the dramatic density difference between the terrestrial and Jovian planets.
A .005 kg block having a velocity of 500 m/s hits a 5 kg wooden block at rest on a horizontal at an angle of 30 degrees from the horizontal
An ionized deuteron (a particle with a charge) passes through a velocity selector whose perpendicular magnetic and electric fields have magnitudes of 43 mT and 7.8 kV/m
The magnetic field component of the electromagnetic wave is 15.0 uT. What is the magnetic energy density of the wave
An elevator car of mass 780 kg falls from rest 3.10 m, hits a buffer spring, and then travels an additional 0.390 m, What is the force constant of the spring
An escaped convict runs 1.70 km due east of the prison. He then runs due north to a friend's house. what is the direction of his total displacement vector with respect to due east
Suppose you are on Mars, where the free-fall acceleration is just 3.7 m/s^2. How far can you hit a golf ball with your club from a 300 meter elevated cliff, How long will the ball fly before hitting the ground
A motor run by a 7.6V battery has a 15 turn square coil with sides of length 3.0cm and total resistance 25ohms. What is the maximum torque on the motor
A spaceship moves past you at speed v. You calculate the ship to be 364 m long, whereas an astronaut on the ship measures a length of 420 m. Find v.
A person on earth notices a rocket approaching from the right at a speed of 0.83c and another rocket approaching from the left at 0.64c. What is the relative speed between the two rockets
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