Generally reactivity of a metal is compared with that of another metal and same is true for non- metals too. There are several factors that determine the reactivity of an element such as size of the atom, number of electrons in outermost shell and so on. The number of shells remain same along a periRead more
No. Just to become popular to all parents and students if the school gives A and A+ to all students, both parties the students and the school loose the credit. The trust they have gained till date will go to zero. Schools should try to be as fair as possible. Yes, in the past some students were unabRead more
Let V and v be the speed of swimmer and water of river. From question, V + v = 20 V - v = 8, solving these two equations we get V = 14 and v = 6. Now swimmer's speed = 14 Km/hr and water speed = 6 Km/hr.
Here, Initial velocity = 700 km/hr = 194.44 m/s angle theta = 50 degree vertical component = 194.44 sin (50) = 148.95 horizontal component = 194.44 cos(50) = 124.99 For time -5000 = 148.95t + 1/2*9.8*t^2; t=-15.2 or 28.10 sec. Time can't be negative so t = 28.1 sec. Horizontal distance = 124.99*28Read more
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Chemistry
Mukund Wosti
Generally reactivity of a metal is compared with that of another metal and same is true for non- metals too. There are several factors that determine the reactivity of an element such as size of the atom, number of electrons in outermost shell and so on. The number of shells remain same along a periRead more
Will all the schools provide Only A+ & A to there students ?
Mukund Wosti
No. Just to become popular to all parents and students if the school gives A and A+ to all students, both parties the students and the school loose the credit. The trust they have gained till date will go to zero. Schools should try to be as fair as possible. Yes, in the past some students were unabRead more
vector
Mukund Wosti
Let V and v be the speed of swimmer and water of river. From question, V + v = 20 V - v = 8, solving these two equations we get V = 14 and v = 6. Now swimmer's speed = 14 Km/hr and water speed = 6 Km/hr.
Electricity
Mukund Wosti
This is another question but not the answer of the asked question.
Mechanics(Projectile)
Mukund Wosti
Here, Initial velocity = 700 km/hr = 194.44 m/s angle theta = 50 degree vertical component = 194.44 sin (50) = 148.95 horizontal component = 194.44 cos(50) = 124.99 For time -5000 = 148.95t + 1/2*9.8*t^2; t=-15.2 or 28.10 sec. Time can't be negative so t = 28.1 sec. Horizontal distance = 124.99*28Read more