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1. If a person pushed on a door with a force of 650 N and a moment arm of 0.75 meters, what would be the moment created?
2. A defensive lineman (mass = 88.5kg) is running at 12 m/s, and a linebacker (mass = 84kg) is running at 13.2 m/s. Determine which player has the greater linear momentum, and by how much.
3. The moment of inertia about the center of mass of a 4 kg segment is 1.2 kgm2. If the moment of inertia about the segment's proximal end is 3.3 kgm2, what is the distance between the proximal end and the center of mass?
4. A gymnast takes off in a layout position with an angular momentum of 42 kgm2/s. She tucks as she begins her somersault. What will be the magnitude of change in angular velocity as her moment of inertia changes from the layout (IL = 9.2 kgm2) to the tuck (IT = 3.8 kgm2)?
5.How far out from an axis must a 1200N force be applied (i.e., what is the forces moment arm) in order to counter and hold a 90Nm torque acting in the clockwise direction?
A playground carousel is free to rotate about its center on frictionless bearings, and air resistance is negligible. What is the person's mass
Where does the bare (5) come from, in the spring equation. I know where the .5 comes from (1/2), I know where the 1.2 comes from (Spring force), I know where the .05 comes from (5 CM, right?) -- so where does the 5 come from, and why isn't the .05 cm..
A diamond has a mass of 56.6 g and the gold ring it is set in has a mass of 125.6 g. How many carbon atoms are there compared to gold atoms
A person with a remote montain cabin plansto install her own hydroelectric plant. A nearby stream is 3.00mwide and 0.500m deep. Find the power she can generate
In a series R-L-C circuit, R= 360 Ω, L= 0.410 H and C= 1.1 x 10-2 μF. Find the resonance angular frequency of the circuit
a thin film having an index of refraction of 1.5 is surrounded by air. it is illuminated normally by white light.
A 0.140 kg baseball is thrown with a velocity of 24.1 m/s. It is struck with an average force of 5000.0 N, which results in a velocity of 37.0 m/s in the opposite direction. How long were the bat and ball in contact
A 1.67 m tall person lifts a 2.34 kg book from the ground so it is 2.22 m above the ground. Calculate the work done by the person
A parallel-plate capacitor with circular plates of radius 65 mm is being discharged by a current of 7.5 A. What is that maximum value
A 410?? resistor and a 6.50??F capacitor are connected in parallel to an ac generator that supplies an rms voltage of 220V at an angular frequency of 360rad/s. Find the current amplitude in the capacitor
A research submarine has a 30 centimeter diameter window that is 9 centimeter thick. Find the submarine maximum safe depth in salt water
A diathermy machine, used in physiotherapy, generates electro magnetic radiation that gives the effect of "deep heat" when absorbed in tissue. One assigned frequency for diathermy is915.00 MHz. What is the wavelength of this radiation?
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