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Using the alternate form of Newton's second law, compute the force (in N) needed to accelerate a 1,250 kg car from 0 to 26 m/s in 18 s. The change in momentum is the car's momentum when traveling 26 m/s minus its momentum when going 0 m/s. (Enter the magnitude.)
A 29 cm long solenoid, 1.8 cm in diameter, is to produce a 0.24 T magnetic field at its center. If the maximum current is 5.7 A, how many turns must the solenoid have
A power station delivers 520 kW of power at 12,000 V to a factory through wires with total resistance 3.0. How much less power is wasted if the electricity is delivered
q1. a flight attendant pulls her 70.0 n flight bag a distance of 274 m along a level airport floor at a constant speed.
Two identical clocks are synchronized. One is then put inorbit directed eastward around the Earth while the other remains onthe Earth. Which clock runs slower? When the moving clock returnsto the Earth, are the two still synchronized? Photons of l..
A 921 kg car is moving rightward with a speed of 29.0 m/s. find the average resistive force acting upon the car
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the object is 1.84 m/s, and its maximum acceleration is 7.07 m/s2.How much time elapses among an instant when the object's spee..
Transmission electron microscopes that use high-energy electrons are employed in many areas including the study of biology samples (like a virus) and nanoscience research and development (allow particles and carbon nanotubes, for example).
a ski gondola is connected to the top of a hill by a steel cable of length 620 m and diameter 1.5 cm. as the gondola
Assume all temperatures to be exact. A 5.20-g pellet of aluminum reaches a final temperature of 78 degrees C when gaining 200J of heat. What is its initial temperature
Two ships are moving along a line due east. The trailing vessel has a speed of 62.0 km/h relative to a land-based observation point, What frequency is monitored by the leading ship
discussion topic 11.discuss how differentiation and integration theorems simplify analysis of time-based
A bus makes a trip according to the position time graph shown in the drawing. Find the average velocity (magnitude & direction) of the bus during each of the segments labelled A, B, & C?
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