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Find the speed of an object.
A car leaves a skid mark 120 feet long on wet pavement with a measured drag factor of 0.05. What was the speed of the car when the brakes were applied?
In the question it asks about 3 vectors which have magnitudes |A| = 36, |B| = 11, and |C| = 32.5, and θA = 40°, θB = 20°, and θC = 15°. a) If the magnitude is A+B+C What is the angle between positive x-axis and the vect ...
Stress σ is the force per area, i.e. σ=F/A. Alternatively, this can be expressed σ=FA^-1. The dimensions and units of force follow from Newton's 2nd law and are provided in example E1. Area has the dimension L^2. The SI ...
The Brinell hardness of a steel specimen was measured to be 250HB. What is the materials approximate tensile strength? What is its hardness on the Vicker's scale? The Rockwell scale?
MIMO Control of a Torsion Plant. Assume that the torsion plant from Problem P10-4 has two torque inputs instead of one - one to actuate the bottom inertia and another to actuate the top. Design a MIMO control system to c ...
Expression of optical rotation based on his assumptions
A rocket moves upward from rest with an acceleration of 29.4 m/s2 for 4 seconds. It then runs out of fuel and continues to move upward. Neglecting any air resistance, how high will it rise?
1.) A 493.0 g pot of water at room temperature (20.0°C) is place on a stove. How much heat is required to change this water to steam at 100.0°C? answer must be given in kcal. 2.) A 1.2 kg metal head of a geology hammer s ...
A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.65 m/s2 for 18.0 s. 2. Maintain a constant velocity for the next 1.40 min. 3. Apply a constant negative accelerat ...
If the person uses a more accurate instrument to measure the lot and finds it to be 18.33 m by 45.68 m both measurements with uncertainty 0.01 m, what is the uncertainty of area?
Why is a solar water heater generally installed with a glasscover on the top to be insulated from the outside air? Compare thesolar energy collecting efficiencies of the solar water heaterswith and without a glass cover, ...
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