An iron rod with diameter
of 12cm at 20°c is to be fixed into a steel plate having a hole of diameter 10cm at same temperature. To what Temperature must the steel plate be heated in order for the for rod to Fix ? [linear expansivity of the steel is 0.00001/K]
A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.