Explanation

Explanation

Explanation

Explanation

The primary focus of the Digital Services Act (DSA) is regulating online platforms and misinformation.

The DSA aims to hold tech companies accountable for harmful content and misinformation on their platforms.

It focuses on transparency, user safety, and combating illegal content online.

Explanation

Explanation

John Snow is considered the father of epidemiology.

It is the study of disease transmission.

It relies on collecting thorough data on both the patients as well as their surroundings.

Epidemiologists track diseases to help warn and protect the public.

Explanation

Explanation

Explanation

To find the final temperature, we can use the principle of heat transfer:

Heat lost by lead = Heat gained by water

Given:

Specific heat of lead (c Pb) = 0.030 cal/g°C

Mass of lead (m Pb) = 300 g

Initial temperature of lead (T Pb) = 100°C

Mass of water (m w) = 100 g

Initial temperature of water (T w) = 70°C

Specific heat of water (c w) = 1 cal/g°C (approximately)

Let the final temperature be T f.

Heat lost by lead = m Pb × c Pb × (T Pb - T f)

= 300 × 0.030 × (100 - T f)

Heat gained by water = m w × c w × (T f - T w)

= 100 × 1 × (T f - 70)

Equating the two expressions:

300 × 0.030 × (100 - T f) = 100 × 1 × (T f - 70)

Simplifying the equation:

9(100 - T f) = 100T f - 7000

900 - 9T f = 100T f - 7000

109T f = 7900

T f ≈ 72.5°C

Explanation