a ball is projected with a certain angle with initial velocity u. it covers horizontal range R. With what initial velocity it must be projected keeping the angle of projection same so its horizontal range becomes 2.25R

A student stands 20 m away from the footof a tree and observes that the angle of elevation of the top of the tree, measured from a table 1.5 m above the ground, is 3428'. Calculate the height of the tree tothe nearest metre. what is standard deviation in maths Collectivist-inclined totalitarian states tend to enact laws that severely restrict private enterprises, while laws enacted by governments in democratic states, where individualism is the dominant political philosophy, tend to be pro-private enterprise and pro-consumer. This indicates that the Thank you for the help!! Please answer this in two minutes A wooden artifact from a Chinese temple has a 14C activity of 41.0 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. You may want to reference (Pages 913 - 916) Section 21.4 while completing this problem. Part A From the half-life for 14C decay, 5715 yr, determine the age of the artifact. Express your answer using two significant figures. t Grade 7 : Civics chapter : 3 - Understanding Media Write a short note on : The impact of Advertising The Right to Information Act 2005 Plz do answer and I'll mark as brainliest if I'm satisfied with the answer : ) Why is warm honey easier to pour than cold honey? A) Increasing the temperature breaks the molecules down into atoms, which are smaller. B) Increasing the temperature increases the kinetic energy of the molecules, which makes it easier to overcome the attractive forces between molecules. C) Increasing the temperature converts the sugars into water, which flows easier. D) Increasing the temperature makes the honey more viscous. a.Find the L.C.M of 18, 40, and 75. How many hydrogen atoms are there in the following compound: 4CHA (2 points)Select one:a 4b. 8c. 12d. 16 when using the rational root theorem, which of the following is a possible root of the polynomial function below f(x)=x^3-5x^2-12x+14A.9B.3C.7D.5 Loyeulis,iv. All of theseb) What do seeds need to grow into new plants?1. Airii. Wateriii. Right amount of warmthc) Potatoes grow fromiv. leaves. A combination lock has 6 different numbers. If each number can only be used ONCE, how many different combinations are possible? The following data were reported by a corporation: Authorized shares 20,000 Issued shares 15,000 Treasury shares 3,000 The number of outstanding shares is: Write each of the following expressions without using absolute value.|a7||a9|, if a A Critical Examination of Utilitarianism as a Moral Principle in 1000 words also include this points 1 Importance of the issue. 2 Description of utilitarianism. 3 Critical analysis (strength and limitations). 4 Conclusion calculate the energy dissipated by an electric iron which draws a current of 5A from a240v power supply for 25minutes Which statement gives an example that best demonstrates how the geosphere has affected the evolution of life on Earth? ratiosimplify4x:9=7:3 When multiplying or dividing two numbers with opposite signs, the answer will be 1.negative 2.positive