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Q1. A hockey player accelerates a puck (m = 0.167 kg) from rest to a velocity of 50 m/s in 0.0121 sec.
find out the acceleration of the puck and the force applied by the hockey stick to the puck.
Avoid resistance forces.
Q2. A .228g wires are stretched between two points 77.20 cm apart. The tension in the wire is 618N. Find the frequency of the first harmonic. Reply in units of Hz.
As part of a safety investigation, two 1400 cars travelling at 18 are crashed into different barriers. Find out the average forces exerted on (a) car that hits a line of water barrels and takes 1.8 to stop, and (b) car that hits a concrete barrier an..
Compute dissimilarity in blood pressure
Find the radius of the largest water drop
How does this number of calories compare with the number of calories required to vary the same gram of 100 degree C boiling water to 100 degree C steam.
What is an acceleration of the particle at the instant
A particular organ pipe can resonate at 231 Hz, 385 Hz, and 539 Hz, but not at any other frequencies in between. Is it an open or a closed pipe? What is the fundamental frequency of this pipe.
What is the separation distance between speaker and listener
A tank with a volume of 0.150 m contains 27.0 degrees celcius helium gas at a pressure of 100 atm. How various balloons can be blown up if each filled balloon so a sphere 30.0 cm in diameter at 27.0 and absolute pressure of 1.20atm .
How much energy is necessary to bring the system back
A beam of 6 MeV electrons passes through a 400 micro-meter thick silicon detector. Estimate the energy lost by the electrons when crossing 200 micro-meters, 300 micro-meters and the full thickness of the detector.
What is error in the simple pendulum approximation
Eight identical, non-interacting particles are placed in a cubical box of sides L = 0.2 nm. Find the lowest energy of the system (in electron volts) and list the quantum numbers of all occupied states if (a) particles are electrons and (b) particles..
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