Question 6 Andrea and her father are building a treehouse and have bought wood for its construction. Andrea picked up a scrap of the wood they are using to build
the treehouse. She wants to calculate the volume of the wood, so she has made some measurements.
6 cm
20 cm
10 cm
Which of the following is the correct calculation of volume in this piece of wood?
a. 2,400 cm3
b. 1,2 00 cm3
c. 600 cm
d. 120 cm

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Which object is most likely represented by a dot?