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A rocket fires two engines simultaneously. One produces a thrust of 700N directly forward while the other gives a thrust of 472N at an angle 38.8? Above the forward direction.
1. Find the magnitude of the resultant force which these engines exert on the rocket.
2. Find the deviation of the direction (relative to the forward direction) of the resultant force which these engines exert on the rocket.
a positive charge q1 4.2 10-8c is located at -2.0 cm 5.0cm a negative charge q2 -6.410-8 is located at -3.0cm 0.0cm
A satellite moves in a circular orbit around the Earth at aspeed of 4260 m/s. Determine the satellite's altitude above thesurface of the Earth
A Ping Pong ball is a hollow, air-filled sphere. One such Ping Pong ball has a radius of 2.25 cm and a mass of 3.5 g. When the ball is placed a few centimeters below the surface of body of fresh water and released, the ball will accelerate upwards
The angular speed of a rotating disk is 0.75 rad/s. What is the frequency of the rotation
A proton is initially at rest at a point where the potential is 459 V. Sometime later the proton is at a point where the potential is 218 V. If no force other than an electrostatic force acts on the proton, what is its final kinetic energy.
A boy tosses a coin straight up to 2.4m. Suppose the height whenthe coin leaves his hand is 1.1m. What was the initial speed of thecoin when it left his hand
A 13.0 kg bucket of water of is suspendedby a rope wrapped around a pulley, which is just a solid cylinder0.300 m in diameter with mass 17.0 kg. The cylinder is pivoted on a frictionlessaxle through its center.
Two 10-cm charged disks face each other, 20 cm apart. The left disk is charged to -30 nC and the right disk is charged to +30 nC. What is the electric field (both magnitude and direction) at the midpoint between the disks? What would be the force (ag..
A husband and wife take turns pulling their child in a wagon along a horizontal sidewalk. Each exerts a constant force and pulls the wagon through the same displacement. They do the same amount of work, but the husband's pulling force is directed ..
A helium-neon laser of the type frequently found in physics laboratories has a beam power of 7.00 mW at a wavelength of 633 nm. Evaluate the force exerted on this sphere
Caught in an avalanche, a skier is fully submerged in flowing snow of density 113 kg/m3. What percentage of the gravitational force on the skier is offset by the buoyant force from the snow
Fighter airplane is flying horizontally at the altitude h=5000m with velocity of u=100m/s. When airplane passes directly above an air defense station, find the horizontal distance s from the fun to the point of impact
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