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A car of mass 1500 kg traveling at 24 m/s is at the foot of a hill that rises 115 m in 2.2 km. At the top of the hill, the speed of the car is 6 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.
A box of mass 32 kg is at rest on a horizontal frictionless surface. A constant horizontal force then acts on the box, and accelerates it to the right. It is observed that it takes the box 6.5 seconds to travel 48 meters. What is the magnitude of for..
Blood pressure is normally taken on the upper arm at the level of the heart, what would be the magnitude of the difference between this measurement of blood pressure and a normal blood pressure measurement
An object known to be made of copper (p=8.89 g/cm^3) and aluminum (p=2.7 g/cm^3) "weighs" 25 g in air but only 20 g in water. How much copper is in the object
If an automobile rounds this curve at 30 {rm m/s}, illustrate what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
When a mass of 25 g is attached to a certain spring, it makes 19 complete vibrations in 4.5 s. What is the spring constant of the spring
A basketball player makes a jump shot. The 0.520-kg ball is released at a height of 1.90 m above the floor with a speed of 7.13 m/s, What is the work done on the ball by air resistance, a nonconservative force
What is the energy released in this nuclear reaction 47Be + 01n ? 37Li + 11H
A box starts from rest and is pushed a distance d = 1.25 meters along a frictionless ramp by a horizontal force, Fa, in 9.75 seconds. find the acceleration of the box as it slides up the ramp
The decay of a fictitious nucleus is accompanied by the emission of a gamma ray with wavelength 2.48*10-2 nm. What is the difference between these two levels
A certain single ion channel is selectively permeable to K and has a resistance of 1.15 GOhms. How many K ions travel through the channel during this time
What is the total work done on the block by the applied force as the block moves a distance 10-m up the incline.
As soon as a traffic light turns green, a car speeds up from rest to 59.0 mi/h with constant acceleration 7.00 mi/h/s. For what time interval is the bicycle ahead of the car
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