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A randomized trial is conducted to evaluate the efficacy of a new cholesterol lowering medication. The primary outcome is incident coronary artery disease. Participants are free of coronary arter
A prospective cohort study is run to estimate the incidence of stroke in persons 55 years and older. all participants are free of stroke at study start. each participant is followed for maximum 5 ye
A student is moving a safe onto a platform. The student needs to push the safe 2.3 m Horizontally and then lift it 1.2 m to reach the platform.
A beam is balanced on a stand. If you place a 50-kg mass on one side at a distance of 2.0 m from the center, how far from the center would you place a 25-kg mass on the other side so that the system
Choose some product produced in your city or state that is made from earth, mineral, or energy resources. One illustration would be the tar paper used as a building material. (Do not use this illust
A fighter plan flying at 378 m/s at an altitude of 160 m during a training mission releases a projectile when he starts climbing with a 15 degree nose up angle to the horizon.
To prove that the power delivered by the source is equal to the sum total of power dissipated by all of the resistors in the circuit.
Driving along an interstate highway at 55 mph, you see a car on a parallel highway coming toward you with a relative speed of 75 mph. The speed of that car over the ground is?
Two paths lead to the top of a big hill. One is steep and direct, while the other is twice as long but less steep. How much more potential energy would you gain taking the longer path?
Two Paths lead to the top of a big hill. One is steep and direct, while the other is twice as long but less steep. How much more potential energy would you gain taking the longer path?
The scientific method is used by scientists to understand the natural laws that the universe obeys. Scientists are not necessarily the only people who might use the scientific method.
Discuss and compare the principles of the Carnot cycle and the Brayton cycle as two different thermodynamic cycles. You should give detailed descriptions of the processes that take place in each cy
Determine the attractive force between myself( 82kg) and the earth ( 6.4 x10 ^24) as I stand on the earth (r = 6.0 x 10^6).
A ball leaves a 0.60 meter high table with an initial horizontal velocity of 2.4 m/s. Predict the time required for the ball to fall to the ground and the horizontal distance between the tables edg
A roller coaster is a height of 120 m and has a series of dips. What is he velocity at the bottom and what is the velocity at a bump that is 75 m above the ground?
Provide at least three reasons for believing in the accuracy and inaccuracy of sensory information.Use at least two quality resources in this assignment. The course is Critical Thinking listed under P
A point charge of -3 C is located at x = 2 m, y = -2 m. A second point charge of 12 C is located at x = 1 m, y = 1 m.
The kinetic energy of a car of mass m moving with velocity vis E=(mv^2)/2. If m=1000kg and v=6m/s, compute E in a) kN(m) and b) lb(ft).
A rail car of mass 4500 kg is moving with a velocity of 12.4 m/s collides with a stationary rail car of mass 6700 kg. What is the velocity of the two cars if they stick after they collide?
A subatomic particle with mass m initially at rest suddenly decays. If one of the resultant particles with mass 0.40 m of mass leaves with a velocity of 5.5 x 105 m/s, what is the velocity of the ot
A physics student swings a pail of water in a vertical circle 1.0 m in radius at a constant speed. If the water is NOT to spill on him/her.
A sound wave with a frequenc of 512 Hz and a wavelenth of 2.99 m is directed toward the bottom of a lake to measure its depth. If the echo of the sound from the bottom is heard 0.25 seconds later,
A uniform electric field of magnitude 200 V/m is directed in the negative x direction. A +10.7 μC charge moves from the origin to the point (x, y) = (20.4 cm, 51.5 cm). What was the change in th
A street light is supported by two wires and each makes a different angle from each other. The one on the left is 32 degrees and the one on the right is 43 degrees. Find the tension in each wire if
Rectifier diode drop = 0.7 V for each. The DC Voltage (after smoothing by the capacitor) is equal to the peak value of the peak value of the full wave rectified pulses.This is a Regulated DC Power S