Student A’s results are shown in Figure 2.What was the decrease in temperature between 0 and 160 seconds?*2 points8.2 °C8.4 °C53.2 °C55.6 °C

Note that a change can be an increase or a decrease.For an increase, use a positive number.For a decrease, use a negative number.(a)A tram moved upward 5 meters per second for 15 seconds. What was the total change in the tram's elevation?75meters(b)In a lab, a substance was cooled by 6°C over a period of 3 hours at a constant rate. What was the change in temperature each hour?2°C

In an experiment, the temperature of a liquid at 16.9 degrees Celsius is decreasing at a rate of 2.3 degrees Celsius per minute and the temperature of a solid at 30.7 degrees Celsius is decreasing at a rate of 6.9 degrees Celsius per minute. Enter the number of minutes it will take the liquid and solid to reach the same temperature.

Identify which one of the following is a rate: 17.5 °C17.5 °C12122 21​ 227 m227 m 2 360 km / hr60 km / hr4

(c) The student repeats the experiment on a different day, using 25 cm 3of potassium hydroxide solution and 25 cm 3of dilute hydrochloric acid.The thermometer shows the highest temperature reached at the end of the experiment. °C 25 20(i) Complete the table by giving the missing information.Give both temperatures to the nearest 0.1 °C. (2) mean temperature at start in °C temperature at end in °C temperature rise in °C5.2

A body with a temperature of 143°C is immersed in a liquid that is kept constant temperature of 23°C. After 21 minutes, the temperature of the body decreased to 46°C. What will be the temperature of the body in °C after 44 minutes?