Independent research Task: When two bodies fall from the same height h, investigate what and how the time of the body fall depends
(let two different bodies fall from the same height at the same time)
Set the necessary hypotheses and test them with an experiment, which you design yourself
Pay attention to variable control
When researching, use the structure from the presentation (hypothesis, experiment, prediction, observation, conclusion)
Record the experiment with a mobile phone (picture) and add the observation code
You can do the research given in the video:
(In two completely identical boxes, put a piece of paper in one and a pebble in the other. Let both boxes fall freely from the same height at the same time. Which will fall to the ground first?)

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.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2