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a person takes a trip, driving with a constant speed of89.5km/h except for a 22 min rest stop. If the person's averagespeed is 77.8km/h, how much time is spent on the trip and how fardoes the person travel?
The leaves of a tree lose water to the atmosphere via the process of transpiration. What is the speed of the sap flowing in the vessels
Describe the components in the atom. Indicate the charge on each of the species and their location
A bronze cannon ball with a mass of 3.5 kg is fired vertically from a small cannon and reaches a height of 25.0 m. find the maximum height reached by the cannon ball
When 4425 J of heat are added to a 0.16-m-long silver bar, What is the mass of the bar
A 0.99-cm-diameter microscope objective has a focal length of 2.6 mm. It is used in visible light with a wavelength of 532 nm. What is the resolving power of the objective
Consider a cube of sides a = 4.60 m, as shown in the diagram below. Suppose that an electric field is present and is given by E = bxn, Calculate the magnitude of the total charge within the cube
q1. a 20 kg block is at rest on a horizontal floor. if you push horizontally on the 20 kg block with a force of 50 n it
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 46 dB by an observer 10 km away. What is the average power generated by the horn
Transverse waves with a speed of 53.5 m/s are to be produced on a stretched string. A 4.35-m length of string with a total mass of 0.0600 kg is used. What is the required tension in the string
An unknown gas is introduced into the aforementioned apparatus using the same tuning fork, and the first resonance occurs when the air column is 6.14 cm long. Find the speed of sound in the gas. m/s
A sound wave from a siren has an intensity of 92.5 W/m2 at a certain point, What is the intensity level of the sound wave due to the ambulance
Calculate the change in the melting point of naphthalene for one atmosphere rise in pressure given that its melting point is 80 C. Latent heat of fusion is 4563 cal/mol and increase in volume on fusion is 18.70 cm3 per mol and 1 calorie = 4.2×10^7..
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