Nazuk

i just learned about faraday's laws of electromagnetic induction.it says that a variation in flux is required to induce current.what i didn't understand was why is variation in flux is required.why can't constant flux induce current?

thanks!

so i recently learnt bout brownian motion.and my teacher said it ws due to temperature and the internal energy of the particles. so my question is if we reduce the temp why does brownian motion slow down.i mean the particles have their own internal energies to move so why dont they.how is the outside temperature affecting their internal energies.i do understand why they move faster on increasing the temperature coz u give them more energy alongwith wid their already existing internal energy.so why do they stop moving at absolute zero inspite of having thier own internal energies?

so i just learned that the formula for finding the highest power of a number in factorial notation is this:for a prime no p in n!=[n/p]+[n/p^2]+[n/p^3] and so on till [n/p^x] which will be smaller than or equal to n.

can someone please explain how this formula was derived?that'd be very helpful thank u.

Hayden and Matthew are riding around the neighborhood on their scooters. Hayden is at rest when Matthew passes him moving at a constant speed of 0.37 m/s. After 1.8 seconds, Hayden decides to chase after Matthew, accelerating at 0.91 m/s/s. How much time must Hayden accelerate before he is side-by-side with Matthew?

i mean if i run on a track and reach my starting position again my displacement would be zero therefore work done would also be zero but actually work has been done cos i moved through a distance

plzzz explain!!!

alll the ppl i asked told me tat it is the product of mass and velocity. what i wanna know is wat it actually is not the mathematical formula.

plz help!!

i have my math exam tomorrow and this question was there in my sample paper

here's the question:Give two examples of geometrical figures which have 4 lines of symmetry

i know one is square but can you pls tell me another one all """serious""""" help is appreciated

tx

She said,"How clever I am." i have my eng exam tomorrow so pls need urgent help

appreciate it

umm i have a few questions i would like you to answer they would really help me:

choose the correct option (really confused about options a and c i am 99% sure that the answer is c pls confirm the remaining 1%)

transpiration is:

a)the loss of excess water from the aerial parts of the plant

b)the loss of water and oxygen and water from the aerial parts of the plant

c)the loss of excess water in the form of water vapour from aerial parts of a plant

d)the loss of water and carbon dioxide from aerial parts of plant

Q2) give reason:1)copper is a good conductor of heat

2)tropical rainforest has a large population of animals

Q3)give 2 examples of animals found in hot and humid climate

thanks for all the help

give reason: plants also respire

this was a question in class could you tell me if my reasoning is correct:plants use the suns energy during the day to make food by photosynthesis.so during the the day their source of energy is basicaaly the sun of course they respire.but at night in the absence of sunlight they use oxygen to breakdown the food stored in the form of sugars after photosynthesis to carry out metabolic processes.

umm please tell me if my answer is correct also if any modifications /corrections are to be made or any points that need to be added pls do so also if you could frame the answer in a better and more organised way i would really appreciate it

thanks everyone for the help

appreciate it!!!!!!

umm i was quite confused as to what the indirect speech for this sentence would be

the sentence : Ria said,"What a beautiful sight!"

thanks for the help

could you guys please give me a good and quick dessert to make for christmas . it should be a recipe which dosen't require any baking and using minimal ingredients. i have flour,eggs,bread,milk,biscuits , vinegar,semolina please help!!!!!!!!!!

please give a good definition

please give me a detailed explanation on the different horizons of soil . if possible please give a well labelled diagram as well

could you please explain properly what exactly a short circuit is . please give a comprehensive explanation.

please help me give me any three reasons like too much resistance etc