Answer:
Explanation:
To stop a ball with high momentum in a small-time imparts a high amount of impact on hands. This is the reason for the stinging of hands.
The momentum of the ball is due to the mass and velocity. To prevent stinging in the hand one needs to lower his hands to increase the time of contact. In this way, the momentum transfer to the hands will be lesser.
Answer: The final mass of the tank is 2.46kg
Explanation: All shown in the attachment.
Assumptions:
i. Argon is treated as an ideal gas at the specified conditions.
ii. Isentropic relation of ideal gas applies at the given conditions.
C) Staring At Someone's Body, Giving Them The “Once Over”
CaCl2 is neither an acid nor a base.
<u>Explanation</u>:
- CaCl2 is neutral. It does not ionize to make hydrogen ions, nor dissociate to give ions to hydroxide.
- Calcium chloride, CaCl2is a salt. At room temperature, it is white coloured crystalline solid and is extremely water-soluble. It can be formed by neutralizing the hydrochloric acid with calcium hydroxide.
- These compounds are used essentially to de-icing and monitor dust. It is used as a desiccant since the anhydrous salt is hygroscopic.
