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A car is towing a boat on a trailer. The driver starts from restand accelerates to a velocity of +19.2 m/s in a time of 27 s. The combined mass of the boat and trailer is 593 kg. The frictionalforce acting on the trailer can be ignored. What is the tension in the hitch that connects the trailer to the car?
In a circus performance a monkey is strapped to a sled and both are given an initial speed of 4.0 m/s up a 20 degree inclined track. How far up the incline do the monkey and sled move
Given a capacitor whose plates measure 15cm by 3.7 cm and are separated by a 2.2mm air gap. Calculate he maximum amount of energy which can be stored in the capacitor under these conditions
The lens-to-retina distance of a patient is 0.0201m and the totally relaxed strength of her eye is 50.0D. (a) What lens strength will correct her distant vision? (b) If the eye has an 8% ability to accommodate, what will be the closest object she can..
The refractive indices of materials A and B have a ratio of nA/nB = 1.79. The speed of light in material A is 1.07 x 10^8 m/s. What is the speed of light in material B
Average Speed The average speed is the total distance covered over the time interval it took to cover that distance. Average Speed = total distance / total time. It is 180 kilometers between Long Beach and San Diego.
An object of mass 2 kg increases in speed from 2m/s to 4m/s in 3 sec. Calculate the total work performed on the object during this time interval
The average intensity of sunlight reaching the earth is 1390 W / m2. A charge of 2.00 x 10^-8 C is placed in the path of this electromagnetic wave. What is the magnitude of the maximum electric force that the charge experiences
A 10cm x 10cm x 10cm box contains 0.010 mol of nitrogen at 20 degrees Celsius. What is the rate of collisions (collisions/s) on one wall of the box
Find the diameter of an aluminum rod that would conduct heat at the same rate as a 2.816 cm diameter copper rod of the same length
A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle.
A string with a length of 2 m resonates in three loops as shown above. The string linear density is 0.05 kg/m and the suspended mass is 1.5 kg. What is the frequency of oscillations
Two charges are placed between the plates of a parallel plate capacitor. One charge is +q1 and the other is q2 = +4.14C. The charge per unit area on each plate has a magnitude of = 1.88 × 10-6 C/m2.
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