By what factor does the kayakers speed change

Assignment Help Physics

Reference no: EM13297528

A kayaker paddles with a power output of 60.0 W to maintain a steady speed of 1.40 m/s

a.) Calculate the resistive force exerted by the water on the kayak.

b.) If the kayaker doubles her power output, and the resistive force due to the water remains the same, by what factor does the kayaker's speed change?

Reference no: EM13297528

Questions Cloud

Calculate the change in consumer surplus : Calculate the change in consumer’s surplus, change in producer’s surplus, tax revenue, and deadweight loss as a result of the policy change. Illustrate them on a graph.

Explain what is the hydraulic residence time of the river : An industry is illegally discharging benzene into a river. The concentration in the river at the point of discharge is 0.2 mg/L. A drinking water treatment plant (DWTP) is located 1.5 km downstream. The water velocity in the river is 0.35 km/day.

Calculate annual costs of meeting proposed effluent : (a) Calculate the annual costs ($/yr) of meeting the proposed effluent requirement of 0.1 mg P/L using alum to precipitate AlPO4(s). Assume the chemical formula for alum is Al2(SO4)3·18H2O (MW = 666).

Describe did the water depth increase or decrease : For each of the following transitions, draw E2,y2 on the specific energy chart and fully describe the reasoning. a. In a rectangular channel, there is a sudden drop in the channel bottom. Did the water depth increase or decrease

By what factor does the kayakers speed change : A kayaker paddles with a power output of 60.0 W to maintain a steady speed of 1.40 m/s, by what factor does the kayaker's speed change

Determine what is the depth of flow in the case of channel : Water is flowing in a trapezoidal channel with 10 ft bottom width and 2H/IV side slopes. The channel is running on a slope of 0.00778 ft/ft and the flow exerts a shear stress of 1.5 lbs/ft2 on the channel bed. What is the depth of flow in this cas..

Why are common borders and cultural similarities often : Why are common borders and cultural similarities often an additional factor to determine who trades most with whom and why? Use your knowledge of the gravity model to justify your answer through two suitable examples.

What is the pressure difference between two ends of pipe : The pipe contains two 6 in steel elbows, two fully open gate valves, a fully open 90o angle valve, and a swing check valve. If the discharge end of the pipe is located 20 ft higher than the entrance, what is the pressure difference between the two..

Determine the final speed of the black ball : A white billiard ball with mass mw = 1.48 kg is moving directly to the right with a speed of v = 3.05 m/s, what is the final speed of the black ball

User Account

All Pages