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Q1. A car is parked on a steep incline, making an angle of 37.0° below the horizontal and overlooking the ocean, when its brakes fail and it begins to roll. Starting from rest at t = 0, the car rolls down the incline with a constant acceleration of 3.75 m/s2, travelling 47.5 m to the edge of a vertical cliff. The cliff is 30.0 m above the ocean.
Q2. Calculate your reaction time using the equation d = 1/2 gt2 (Solve this equation for time by rearranging it as: t = square root of (2 vertical distance/gravity)). Communicate your distance (d) in meters. Note that g = 9.80 m/s2 for gravity.
From the shape of total energy vs. time plot, what can you conclude about the conservation of mechanical energy in your mass and spring system.
One hundred k mol of a gas containing 94.4 mole% methane, 3.40% ethane, 0.60% propane, and 0.50 percent butane is to be burned with 17% excess air. Calculate the required molar flow rate of the air.
What is an initial velocity of the boulders
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.
Question on a planet similar to Earth
A long wire lying along the x-axis carries a current of 1.60 A in the +x direction. There is the uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along cartesian coordinate axes') in units of Tes..
How far above the aim is the point
Determine the location of the center of mass of the molecule as measured from the hydrogen atom (Chlorine is 35 times more massive than hydrogen.).
What is coefficient of kinetic friction
A 10 Newton effort force is required to lift a 10kg box just off the ground. What is the effort required to lift the box off the ground using a 3m long lever.
A 12 kg box slides 4.0 {rm m} down the frictionless ramp, and then collides with a spring whose spring constant is 240 N/m.
The mass per unit length of the cord is 1.24 e-2 kg/m, so the mass of the cord is negligible compared to the mass of block. The cord is being vibrated at a frequency of 167 Hz (vibration source not shown in the drawing).
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