The skater with a mass of 50 kg has a velocity of 20 m/s at the bottom of the ramp. How high vertically up the ramp will the skater be able to go? (Round off the acceleration of gravity to 10 m/s/s)

question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

god i hope this !