Neglecting drive train losses what is the average power

Assignment Help Civil Engineering
Reference no: EM13557073

A cyclist rides up a local mountain at an average speed of 11 mph. The road has an average grade of 5.5%. The cyclist and her bike have a combined mass of 75 kg. The force from road drag is 2.5 N and the aerodynamic drag (in Newtons) is equal to 0.2v2 N where the units on 0.2 are N s2/m2 and where v is in m/s. Neglecting drive train losses what is the average power output of the cyclist?

Reference no: EM13557073

Questions Cloud

Calculate the final temperature of the gas : A well-insulated rigid vessel of volume 0.2 m^3 is divided into two equal compartments by thin diaphragm, as illustrated in the accompanying figure. One of the compartments is a vacuum
Determine the corresponding increase in water temperature : Water flows over a waterfall that is 60m high. Assuming that all of the potential energy of the water at the top of the fall is converted to an increase in internal energy at the bottom of the fall
Calculate the change in length of a 30m measuring tape made : Calculate the change in length of a 30m measuring tape made of steel when its temperature changes by 84 F. The coefficient of thermal expansion for steel is x = 3.1 x 10^-6 per C
Determine the temperature rise : A 45 W electric mixer is operated for 5 minutes while mixing a 2 kg shake. Assume Csubv=4200 J/kg-K for the liquid. Determine the temperature rise (in degrees C) of the milk shake.
Neglecting drive train losses what is the average power : A cyclist rides up a local mountain at an average speed of 11 mph. The road has an average grade of 5.5%. The cyclist and her bike have a combined mass of 75 kg. The force from road drag is 2.5 N and the aerodynamic drag (in Newtons)
Sub 12 means from stage one to two heat transfer : Sub 12 means from stage one to two. Heat transfer (Qsub12) occurs to a fluid of mass m whose volume increases at a constant pressure of 21 bar. Assume that the fluid is air (Csubv=0.718 kJ/kg *K and R=0.287 kJ/kg*K) and that Tsub1=725K and Tsub2=1100..
What is the change in internal energy of the system : What is the change in internal energy of the system? Assume the displacement work in a (fully resisted) constant pressure process is given by (*sub 12 means from stage 1 to 2) Wsub12=p(Vsub2-Vsub1).
What should the spring stiffness be if the spring : A 2 kg block is projected up a frictionless plane with and initial speed of 8 m/s. The plane is inclined upward at 30°. If the block travels 5 m before striking a linear spring, what should the spring stiffness be if the spring compression is to be l..
What is the concentration of bod in the river-wastewater mix : Compare the monolithic approach, the layered approach, and the microkernel approach in terms of degree of difficulty to debug, portability, efficiency, and degree of structure.

Reviews

Write a Review

Civil Engineering Questions & Answers

  What is the average seepage velocity of the groundwater

If the front edge of a contaminant plume is perfectly straight, how long would it take to travel to Well 1 after first arriving (simultaneously) at Wells 2 and 3, assuming that the contaminant plume travels only half as fast as the groundwater flo..

  Plot the normalized concentration versus normalized time

Write the mass balance equation for a completely mixed lake with an impulse input of mass, M, added at time t = 0. Assume the lake is of constant volume, V, with continuous outflow, Q, and a conservative substance.

  What is the irr of this system

Installing an automated production system costing $278,000 is initially expected to save Zia corporation $52,000 in expenses annually. If the system needs $5000 in operating and maintenanc

  Calculate the volumetric strains

A spherical drop of water has r = .1mm . If the surface tension of water is 72 dynes/cm, calculate the pressure difference across the interface. Express the answer in dynes/cm^2. (Tip: theta = 0 for perfect fluid spheres)

  What will be the lateral strain if poissons ratio is 33

An aluminum alloy rod has a circular cross section with a diameter of 8 millimeters. This rod is subjected to a tensile load of 4 kN. Assume E=69 GPa. What will be the lateral strain if Poisson's ratio is 0.33

  Well-known architect frank lloyd wright

Many years ago, well-known architect Frank Lloyd Wright designed a mile-high skyscraper, which has never been built.

  Determine horizontal distance the shot travels form a point

When the athlete releases the shot it is 1.82m above the ground and its initial velocity=13.6 m/s. Determine the horizontal distance the shot travels form the point of release to the point where it hits the ground.

  Find what is the constant dollar amount of the payment

You have a $1,500 monthly loan payment. If inflation is 3.5% annually (compounded monthly). What is the constant dollar amount of this payment in your 80th month

  Determine the absolute air pressure on top of reservoir 1

Two water reservoirs A and B are connected to each other through a 40 m long, 2 cm cast iron pipe with a sharp-edged entrance. The pipe also involves a swing check valve and a fully open gate valve.

  Determine heat loss from steam passing through turbine

Steam enters a turbine with neglible velocity at 4 mpa, 600 degrees celcius and a flow rate of 36000 kg/h. Determine the heat loss from the steam passing through the turbine if the turbine has a power output of 20000 kw

  Why does a design engineer need to know the location of the

Course Ab of a five sided traverse runs due north. From the giben balanced interior angles to the right, compute and tabulate the bearings and azimuths from north for each side of the traverses.

  How many truckloads of trucks hauling an average volume

How many truckloads of trucks hauling an average volume of 6 LCY (4.6 LCM) would be required to haul 1 million CCY (764, 600 CCM) of gravel to a dam site

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd