blog challenge

National debt: 21,989 million dollar

Number of habitants: 10 million

If we divide the national debt by the number of habitats then we could get the amount of money a child would owe at the time of birth

Result: 2198. 9

Assessment questions

1. What force is needed to accelerate an object 5m/s2 if the object has a mass of 10kg?

Force= Mass x Acceleration

Mass: 10kg Acceleration: 5m/s2   =     10x5= 50N

2. Carlos pushes a 3kg box with a force of 9N. The force of friction on the box is 3N in the opposite direction. What is the acceleration of the box?

9N- 3N= 6N   3kg x 6N = 18 m/s2

HOMEWORK 9'6'2013

Carlos and Sarah are playing a game in which each player either wins, loses, or draws at each turn. The winner of a turn is awarded 5 points, the loser loses 5 points, and if it’s a draw 0 points are awarded. For the first 8 rounds Carlos had the following result: lose, win, lose, win, win, lose, win, and draw.

What is Sarah’s point total?  

Sarah’s wins: 3

Sarah’s losses: 4

Draws: 0

3x5= 15  -5x4= -20  15+(-20) = -5

Sarah’s point total is -5

Tarea 9-6-2013

Richard was at the canyon and he shouted his name down the canyon, 8 seconds later he heard his echo. How deep is the canyon?

If the speed of sound is:

340.29 m / s

Then we multiply 340.29 times 4:

1361.16