Read the passage. What Internet threat is Tanya facing? What should she do about it? While surfing on an unknown site, Tanya received a notification that her PDF reader needed some updates. She clicked the link. It opened a suspicious-looking website. Tanya immediately closed the window. Now when she tries to access the Internet, the window is covered with pop-up ads. As a result, she can no longer use the Internet or access websites.

Tanya is facing a(n)
threat. She should
.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?