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A 10 cm x 10 cm x 10 cm block of steel (density of steel =7900 kg/m3) is suspended from a spring scale. The scaleis in newtons.
a. What is the scale reading if the block is in air?
b. What is the scale reading after theblock has been lowered into a beaker of oil and is completely submerged?
A man's leg can be thought of as a shaft of bone 1.2m long. If the strain is 1.3x 10^-4 when the leg supports his weight, by how much is his leg shortened
A block of mass m is attached to a fixed wall by means of a spring whose force constant is k. The block slides on an inclined plane of angle θ. The kinetic friction coefficient between the block and the inclined surface is μ.
A typical power plant uses some fuel as the source of heat (QH) to drive a heat engine that does work (W) to drive a generator that is connected to the electrical grid. Inevitably, waste heat (QC) is dumped into a river or lake. Analysis of the pl..
An earth satellite moves in a circular orbit with an orbital speed of 6300 m/s. Find the time of one revolution of the satellite
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 2.10 e 10^6 m/s. What is the distance of closest approach? Please show work in the answer because I am attempting to learn this.
A gymnast does a one-arm handstand. The humerus, which is the upper arm bone (between the elbow and the shoulder joint), What is the compressional strain of the humerus
two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. rocket a has
A 42kg child decides to make a raft out of empty 1.0 L soda bottles and duct tape. what is the minimum number of bottles needed in order to keep the child dry
alpha particles of charge q 2e and mass m 6.6 10-27 kg are emitted from a radioactive source at a speed of 1.5 107
A uniform ring of mass 3 kgand radius 5m is rotating about its axis of symmetry withan angular speed of 2 rad/s. How much work is required tobring it to rest
Type your question here Working on a bikeup side down, you spin the 70 cm wheel and you notice a pebble stuck in the threads goes by three times every second. What is the pebbles speed
How fast is the mass moving at the top of its new path (directly above the peg)?
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