Subject Help

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Hello, I need help with my DMR! Thanks in advance. :)

Hey guys. I am kind of moving on ahead myself in Physics because my teachers are soooo slow. Can you guys explain this concept to me?

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A, B and C are three points lying in that order on a straight line. A body is projected from B towards A with a speed of 3 m/s. The body experiences an acceleration of 1 m/s towards C. If BC = 20m, find the time taken to reach C and the distance the body has traveled from the moment of projection ti

A and B are two points on a road. A car travelling along the road passes A when t=0 and maintains a constant speed until t=30 and in this time covers 3/5th of the total distance from A to B. The car then retards uniformly to B. Find the total time taken for the car to travel A to B. I actually got

How do you simplify the following: y^1/2 - y^-1/2 (where ^ indicates 'to the power of') This is an indices question which really has baffled me but as usual, I believe I am overthinking it so would love your guys' perspective on it. Many Thanks in advance

Would I be able to solve this question using simultaneous equations?

Hello, Could somebody help me on these questions? I have listed my thoughts and ideas - if they are incorrect could somebody please correct them or provide a detailed explanation to help me work out the right answer. Thanks so much. 1) Why is a lighter oil better to use than mercury in a manometer?

Please could someone help on each. Thank you :-)

- Using the graph EXPLAIN how to write an equation in Point-Slope Form.

If you have a normally distributed set of data from 200 participants, how many people would you expect to have scores within ±1 standard deviation from the mean?

I have been and still am

I tried answering this question but everything was pretty much a wild guess. So basically I separated the initial velocity into vectors and assumed that the vertical distance would be 2.1 and got either .1 and 3.8 and then I thought maybe there was a second system at the same time but .3 seconds les

I drew a diagram but I don't know what to after :(

Hey there! If you didn't know, OnlyPhysics hosted an online competition in August, which attracted 159 participants. This post is displaying a leaderboard that contains the 90th percentile - in other words, the top 10% of participants, who will be moving onto the second round. This will be displaye

what type of (lithium) batteries would I need to power a 1000 w or 700 w motor for around 48h

Hello, I was wondering if somebody could help me on this question; it asks to draw a tangent, a topic I have never come across before, I have watched one or two videos which made no sense. If someone would be able to draw the tangent for me that would help; it may seem like I am not doing my work

Hey, I have started these questions off but just wanted to ask if somebody could check it and explain if they are incorrect. Thanks.

Is there a method too working this question out?: The highest common factor of two numbers is 4. The lowest common multiple of the same two numbers is 60. What are the two numbers?

Hey guys, this question could be under Physics and/or Maths but i decided to put it here. Not sure if this is an AS-Level Qs. Unsure what to do as someone who just finished GCSE

Could somebody please explain how to do Q2 B ? Thanks in advance.

Another Cambridge Non-Calc Qs. Im struggling to do this question under 3 mins without the use of a calculator. Wondering if there is a trick to this to simplify things.

Hey guys, been looking at this question for a while now. Was supposed to get it done in under 2 mins but it has been significantly longer than that - Any suggestions? My brain is absolutely fried atm so I can't spend much longer on maths - I feel like im missing something out here. Would love a