a reservoir dam holds an 8 km2 lake behind it. just behind the dam, the lake is 12.5m deep. what is the gauge pressure at the base of the dam (in pascals)?
5. 0 g of c8h18 are burned in a bomb calorimeter with 750 g water, and there is 10. 0∘c increase in temperature when 32. 0 kj of heat is released. What is the heat capacity of the calorimeter?.
A nonmechanical water meter could utilize the hall effect by applying a magnetic field across a metal pipe and measuring the hall voltage produced. What is the average fluid velocity in a 3. 50-cm-diameter pipe, if a 0. 750-t field across it creates a 75. 0-mv hall voltage?.
The following readings were obtained in an experiment: s (cm) x (cm) x' (cm) 2.5 5.0 10.0 20.0 30.0 40.0 Make graph on th dow 8. 24.7 23.5 21.2 25.7 16.0 10.7 5.3 25.2 22.4 16.9 11.2 5.5 Plot a graph of s against x and s against x' using the same axes. +(s) Determine the following: a) The point of intersection of the two graphs. b) The values of s when x = 0 and x' = 0. dings were obtained in a T W
What is the percent increase in the vapor pressure of water when the temperature increases by 2 °c from 14°c to 16°c.
What is the percent increase in the vapor pressure of water when the temperature increases by 1 °c from 14°c to 15°c.
Excitation of vibrational motion of molecules is associated with which region of the electromagnetic spectrum?.
In an experiment, an indian emperor concluded that human beings are not born with any language or other skills. What was the nature of this experiment?.
a movie stunt performer is filming a scene where he swings across a river on a vine. the safety crew must use a vine with enough strength so that it doesn't break while swinging. the stunt performer's mass is 82.0 kg, the vine is 12.0 m long, and the speed of the stunt performer at the bottom of the swing has been determined to be 8.20 m/s. what is the minimum tension force (in n) the vine must be able to support without breaking?
. a uniform cylindrical grinding wheel of mass 5.00 kg and radius 20.0 cm is turned by an electric motor. once it is turned on it takes 10.0 seconds for the wheel to go from rest to 125 rpm. ignore friction in the bearings of the wheel. (a) find the amount of torque exerted on the wheel by the motor. (b) the motor is switched off and a piece of metal is pressed against the edge of the wheel with a force of 45.0 n. if the coefficient of friction is 0.500 how many turns will the wheel complete before coming to a stop?
what length pendulum period on the moon would match the period of a 2.0 m long period pendulum on the earth?
in a time trial, when a cyclist is racing along at 12 m/s how fast is a point at the top of the tire moving?
