Y Component Force X component T1 Sin 37 T1 Cos 37 T1 T2 Sin 53 T2 T2 Cos 53 122 N T3 Question 4 ITF-S.0 N, what is the magnitude of the force exerted by block 2 on block 1? 25 N 30 kg 20 kg hiv 25 50 7 16 67 Question 5 If F-40 N and M1.5 kg, what is the tension in the string connecting M and 2M (as pulley is massless, and the surfaces are frictionless) 2M 23
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
Could you kindly do the workings for question 4 and solve while typing the explanation to me? Thank you.
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