in this experiment researchers tracked the time it took players wearing light shoes versus heavy shoes to run 20 meters timing gates were set up as shown in the diagram below to operate a computer controlled stopwatch to track the times it took runners to reach each 5 meter marker. this experiment set up led to four times checks during the 20 meter sprint: at 5 meters, 10 meters, 15 meters, and 20 meters. Athletes were asked to run with a maximum level of effort the data shown below are averaged data from 22 athletes.

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg. k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.

What are igneous intrusions and extrusions