True. Series resistance will add up and high total resistance means less current
Answer:
t = 66.7 s
Explanation:
Given that,
Speed of a hare, v = 15 m/s
Speed of a turbocharged tortoise, v' = 3 m/s
The hare in a 250 meter race
Let the Hare takes time t. It can be calculated as follows :
Let a turbocharged tortoise takes t'. It can be calulated as follows :
To tie the race, required time is given by :
Hence, the correct option is (b) i.e. 66.7 seconds.
Answer:
Atoms gain energy as a solid change to a liquid
Atoms gain energy as a solid change to a gas
Explanation:
- The change of phase of a substance involves the absorption or release of the energy by the atoms.
- When a substance in a solid-state is converted into liquid. The energy is absorbed by the atoms of the substance. That is why the metals need to be heated to convert it into liquid. When the substance recover its original phase, the absorbed energy is released
- When a substance in the liquid state is heated it transforms into the vapor state. The vapors need to be cooled to convert back to the liquid state.
Answer:
See the answer below
Explanation:
Newton's third law states that for every action, there will always be an opposing reaction of equal magnitude to the action.
<em>Hence, the wall will exert an equal opposing force to the head and the roommate will feel this opposing force as pains and/or headache. </em>
It is 3.2 because you add 2.3 and 4.1 then divide your answer by 2.