An iron Tyre of diameter 50cm at 288k is to be shrank on to a wheel of diameter 50.35cm. To what temperature must the tyre be heated so that it will slip over the wheel with a radial gap of 0.5mm. Linear expansivity of iron is 0.000012k-1 ​

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery