A complete circuit contains two parallel-connected devices and a generator for providing the electromotive force. The resistance of the first device is 12 ohms, the resistance of the second device is 4 ohms, and the voltage developed by the generator is 40 V. What is the magnitude of the current flowing through the first device?
A. 13.32 A
B. 3.33 A
C. 8 A
D. 10 A
Answer is 3.33 A
B) glycerine
C) water
D) food substanced
Answer: In an alcohol, a carbon atom is single bonded to a hydroxide group (OH–); in an ether, an oxygen atom is single bonded to two carbon atoms.
Explanation: Alcohols are compounds which contain functional group -OH attached to an alkyl group. They are represented by general formula .
Ethers are the compounds which contain functional group -O attached to alkyl groups on both sides. They are represented by general formula .
For example: Methyl alcohol is represented as and dimethyl ether is represented as .
Answer: the answer is c
Explanation:
good luck
b.blog
c.goverment website
d.newspaper editorial
Answer:
In the modern classification system birds are in a separate class from reptiles, but fossil evidence shows they have common ancestors.
Birds refer to the group of organisms which are endothermic in nature, have feathers, beaks, four-chambered heart, high metabolic rate, lay hard-shelled eggs and lightweight skeletons.
In biological classification, they are classified under the class Aves.
Reptiles are four-limbed organisms which come under the class Reptilia.
However, biological and fossil evidence show that birds and reptiles shared common ancestors. It is believed that birds have evolved from the reptiles. Most of the scientists believe that birds are the specialized subgroup of theropod dinosaurs.
using good bugs to kill bad bugs
trimming off infested plant branches
* never sterilizing tools
using chemicals only when necessary
Answer:
The correct answer is "never sterilizing tools".
Explanation:
Integrated pest management (IPM), also known as integrated pest control (IPC), is a series of recommended practices to reduce and control the development of pests in plants of interest. Never sterilizing tools is not part of following a IPM approach. Actually, it is recommended to sterilize tools to eliminate any risk of contamination and spreading the pests that could result from handling contaminated plants.