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The length of a spaceship is 87 meter when it is at rest. If the spaceship travels by you with a speed of 0.72c, determine what length does it appear to you?
bob is talking to alice using a tin can telephone which consists of two steel cans connected by a 20-m-long taut steel
A double slit is opposite the center of a 1.7-m wide screen 2.3 m from the slits. The slit separation is 24 µm and the width of each slit is 7.2 µm. How many fringes are visible on the screen if the slit is illuminated by 590-nm light?
Spinal fluid pressure can be measured using a spinal tap in which a needle is inserted in the patient's lower back with the patient sitting upright on an examination table. The pressure due to the weight of the spinal fluid (given that its density..
A thin layer of ice floats on the surface of water in a bucket. A ray of light from the bottom of the bucket travels upward through the water. What is this angle after the ice melts
A certain type of propeller blade can be modeled as a thin uniform bar 2.80m long, find the maximum angular acceleration the blade could achieve
a 15 kg mass starts from rest and slides down an inclined plane 8.0 x 10-1 m long in 0.7 s. what net force is acting on
A wheel of moment of inertia of 5.00 kg•m^2 starts from rest and accelerates under a fix torque of 3.00 N•m for 8.00 second. Find the wheel rotational kinetic energy at end of 8.00 second
A certain ideal gas is kept at 350K in a container with a volume of 3 cubic meters. what is the average kinetic energy of the gas molecules
The coefficient of static friction between the 3000 lb car's tires and the road is 0.5. Determine the steepest grade the car can drive up at constant speed if car has (a) rear=wheel drive; (b) front-wheel drive; (c) four wheel drive.
In 2.58 minutes, a ski lift raises four skiers at constant speed to a height of 132 m. What is the average power provided by the tension in the cable pulling the lift
a singly ionized oxygen atom moves at 9000ms in a circular path perpendicular to a 0.85t magnetic field. find the
An air-filled toroidal solenoid has a mean radius of 15.1cm and a cross-sectional area of 4.95cm2, find the least number of turns that the winding must have
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