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A rocket of mass 4.50 x 105 kgis in flight. its thrust is directed at an angle of 64.5° above the horizontal and has a magnitudeof 7.00 x 106 N. Find the magnitude and direction of the rocketsacceleration. Give the direction as an angle above thehorizonal.
Which of the following quantities vary as a sine function or a cosine function of time for a particle that is executing simple harmonic motion? Displacement Velocity Acceleration Total energy
A 1.65 kg mass is placed on the end of a spring that has a spring constant of 195 n/m. Determine the change in elastic potential energy of the system
A 1200 kg car is pulling a 500 kg triler along level ground. Friction is negligible. What is the magnitude of the force exerted by the car on the trailer
A combination lock has a 1.5cm -diameter knob that is part of the dial you turn to unlock the lock. What is the most torque you can exert on the knob
A person wearing a safety belt can withstand an acceleration of -3.0 x 10^2 m/s2. How thick must barriers be to safely stop a car that hits a barrier at 112 km/h.
At the beginning of a new school term, a student moves a box of blocks by attaching a rope to the box and pulling with a force of F= 84.9N at an angle of 65 degrees, as shown in the figure. The acceleration of gravity is 9.8 m/s2.
A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of the water while a large ball requires a lot of force. calculate the diameter of the ball
The radius of the GM tube's window is 3.5 cm. The source is 3 cm from the GM tube. Compare the surface area of a sphere 3 cm from the source to the area of the GM tube's window.
A converging lens with a focal length of 12.2cmforms a virtual image 8.50mm tall, 16.6cm to the right of the lens. Determine the position of the object
1. A 50.0 kg block is pulled from rest by a force of 1000.0 N at an angle of 37.0° across a horizontal rough surface over a distance of 5.60 m. The coefficient of kinetic friction between the block and the surface is 0.500.
Two small metallic spheres, each of mass m = 0.40 g, are suspended as pendulums by light strings from a common point, what is the magnitude of the charge on each sphere
What is the difference between the acceleration of his head and feet if the astronaut is 2.00 m tall.
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