Physics, 05.02.2020 21:43 asanjog2755
Is it possible for an object to be (a) slowing down while its acceleration is increasing in magnitude; (b) speeding up while its acceleration is decreasing? in both cases, explain your reasoning.
Answers: 2
Physics, 21.06.2019 23:00
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.
Answers: 2
Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
Answers: 2
Physics, 22.06.2019 13:30
Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.
Answers: 1
Is it possible for an object to be (a) slowing down while its acceleration is increasing in magnitud...
Mathematics, 24.04.2020 22:06
History, 24.04.2020 22:06
History, 24.04.2020 22:06
Mathematics, 24.04.2020 22:06
Mathematics, 24.04.2020 22:06
Biology, 24.04.2020 22:06
Mathematics, 24.04.2020 22:06
Physics, 24.04.2020 22:06
Mathematics, 24.04.2020 22:06
English, 24.04.2020 22:06
Mathematics, 24.04.2020 22:06
Biology, 24.04.2020 22:06
Chemistry, 24.04.2020 22:06
Spanish, 24.04.2020 22:06