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A spinning disk of mass 5.0 kg and radius 0.25m is rotating about an axis through its center at 400 rev/min. a.) What is the angular velocity of the disk in rad/s? b.) What is the moment of inertia of the disk? c.) If it accelerates at a constant rate to 900 rev/min in 8 sec, what is its angular acceleration? d.) What constant torque is required to produce this acceleration? e.) When it reaches that speed, what is its kinetic energy? f.) When it reaches that speed, what is its angular momentum?
A 60.0 kg person running at an initial speed of 3.25 m/s jumps onto a 120 kg cart that is initially at rest. Find the final speed of the person and cart relative to the ground
A long, current-carrying solenoid with an air core has 1780 turns per meter of length and a radius of 0.0130 m. What is the mutual inductance of this system
at a concert you sit 12 m directly in front of one of the two speakers on the front of the stage. the other speaker is
The air inside a bicycle tire pump has 193 joules of work done on it as 77.3 joules of heat is conducted away from it. What is the change in internal energy of the air
A child rides a pony on a circular track whose radius is 4.0m, Find the distance after a complete circuit of the track
Suppose the mirror is misaligned, so that the actual angle between the normal to the surface and due south is too large by 0.003°. By how many meters (due east) will the reflected ray miss the detector
Determine the minimum velocity and angle required to shoot a projectile over a wall and land 14ft from origin. The wall is located 10ft from origin and is 26.5ft high and 0.5ft wide.
A tsunami is generated by an earthquake off the coast of Alaska. It has a wavelength of 677 km. It travels at a distance of 3536 km in a period of 5.49 hr. What is the frequency of the wave in Hz?
An isolated capacitor of unknown capacitance has been charged to a potential difference of 119 V. Calculate the unknown capacitance
A bullet of mass 0.0022 kg initially moving at 496 m/s embeds itself in a large fixed piece of wood and travels 0.64 m before coming to rest. Imagine that an acceleration of the bullet is constant.
A jet aircraft with a mass of 4,575 kg has an engine that exerts a force (thrust) equal to 59,700 N. What is the jet's acceleration
Unpolarized white light is incident on a polarizer and then falls on an analyzer whose TA (Transmission Axis) makes an angle of ?= 23.5? with the polarizer. What is the fraction of the original light transmitted through both the polarizer and analy..
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