A look at what is currently available on eBay
This is about Physics. please reply thanks?
Q 1:
At a steel works, molten iron is heated to 1500o Celsius to remove the impurities. Is it
accurate to say that the molten iron contains heat?
Q 2:
Suppose you have a clock that consists of a spring oriented along the x-axis and
oscillating with some frequency. An observer moving with uniform speed along the x-axis
will see the spring contracted. Does this explain the time dilation effect?
Q 3;
You put a thermometer in a pot of hot water and record thee reading. What temperature
have you recorded?
I. The temperature of the water;
II. The temperature of the thermometer;
III. An equal average of the temperature of the water and thermometer;
IV. A weighted average of the water and thermometer, with more emphasis on the
temperature of the water.
V. A weighted average of the water and thermometer, with more emphasis on the
temperature of the thermometer.
answer to question 3 is 1. the temperature of water
because the thermometer is calibrated to measure the temperature of of what it is surrounded by. so dont confuse it