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An aluminum engine operating at 300°C is cooled by circulating water over the end of the engine where the water absorbs enough energy to boil. The cooling interface has a surface area of 0.525
In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions?
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth?
Calculate the length of time it takes for a signal to pass down an Ethernet bus that is 300 m in length, assuming the velocity factor of the cable is 0.66.
Calculate the force between two point charges separated by 4 cm. Also, calculate the force when those same two point charges are separated by 8 cm. (20 N and 4 N )
An airplane must reach a speed of 196 mi/h to take off. If the runway is 496 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully?
Charge 2 = -2.50 nC and is at = 4.50cm . Charge 1 is at = 1.00 cm . What is the sign and magnitude of charge 1 if the total force on charge 3 is zero.
A car moving at 73 km/h collides with a concrete bridge support. The bridge support is unaffected, but the front of the car is compressed by 0.94 m. What average force must a seatbelt exert in orde
At 20°C the carbon resistor in an electric circuit connected to a 5.0 V battery has a resistance of 200. What is the current in the circuit when the temperature of the carbon rises to 80°C?
What are the block's oscillations frequency? What is the block's distance from equilibrium when the speed is 30 ? What is the block's position at?
How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions?
A parallel-plate capacitor is charged to an electric potential of 335 V by moving 3.95×1016 electrons from one plate to the other. How much work is done in charging the capacitor?
Electron starting from rest is accelerated in a uniform electric field with 50. kV potential. What is the change in electrical potential energy of the electron?
A person wants to shoot an apple with an arrow. The trick is that their friend will drop the apple at the same exact moment that the arrow will be released. Both the apple and the arrow start at th
A man pushes a lawnmower on a level lawn with a force of 200 n. if 40% of this force is directed downward, how much work is done by the man in pushing the mower 6.0 m?
What is the magnitude of the velocity of the first car relative to the second car? What is the direction of the resultant velocity? After they pass how will their relative velocity change?
Clockwise- nearest neighbor with constant speed. Describe qualitatively the subsequent paths of the particles. How long does it take for the particles to collide?
A backpack full of books weighing 42 N rests on a (level) table in a physics laboratory classroom. A spring with a force constant of 180 N/m is attached to the backpack, and pulled horizontally. If
while john is traveling along an interstate highway, he notices the the mile marker reads 234 km. What is john's resultant displacement from the 234 km marker?
A moon orbits a planet of unknown mass with a period of 1.8 days. If the radius of the moon's orbit is 420,000,000 meters, find the mass of the planet. a) First, find the speed of the moon Determine
A 100-kg sprinter wishes to accelerate from rest to a speed of 13 m/s in a distance of 15 meters. What coefficient of static friction is required between the track and the runner's shoes?
We must apply a force of magnitude 100.0 N to hold the block stationary at x=-2.0 cm. From that position, we then slowly move the block so that our force does +4.9 J of work on the springblock syst
The level floor of her dormitory room a distance 3.00 m at constant speed. If the coefficient of kinetic friction between the desk and the floor is 0.400, how much work did she do?
Hold the switch closed. Place the Magnetic Field Sensor between the turns of the Slinky near its center. Rotate the sensor and determine which direction gives the largest positive magnetic field re