Question:
Force is a vector. What then is a vector? Think about how you would give directions to a friend. You would not say, just walk half a mile. The person may walk a half mile in the wrong direction! More information is needed. You may say, follow this particular road for a half mile. You may say, look for the green house on Sumter St. In both examples, you provided a direction. You also gave the distance. In other words, you provided a vector. You did not just give a distance. Both pieces of information are needed to find a location. This is just like describing forces. To explain forces, both size and direction are needed. Notice the girl in Figure 1.1. She is pushing the swing away from herself. Thats the direction of the force. She can give the swing a strong push or a weak push. After reading the above, is "The person may defy gravity" the correct answer to the question "Why is more info needed to describe a vector?"?

Answer:
no

Question:
Brad, Texas (CNN) -- Authorities were working on plans Friday for residents who were forced to flee a wildfire in northern Texas to return home, a day after firefighters made progress battling the blaze that destroyed dozens of homes. The blaze in Palo Pinto County scorched 6,200 acres by Thursday, according to the Texas Forest Service. The fire is burning near the resort of Possum Kingdom Lake, near the town of Brad, about 100 miles west of Dallas. "We feel much better about this fire today," as the blaze is now 50% contained, said John Nichols, a spokesman for the Forest Service. He said evacuations were lifted for some residents forced to evacuate the fire, which was driven by high temperatures and dry winds. The wildfire has destroyed 40 homes and nine RVs since it began Tuesday, the Forest Service said Thursday. Firefighters were receiving support from aerial tankers and helicopters. Authorities are mapping out plans to allow residents to return to their homes, said Palo Pinto County Sheriff Ira Mercer. Authorities also are trying to open the lake for the Labor Day holiday, he said. On Wednesday, evacuations were ordered in several communities on the north side of the lake after the fire charged over a ridge and approached a dam on the lake, CNN affiliate WFAA reported. The wildfire was moving so fast that the Forest Service pulled out of its command observation post, telling journalists and onlookers to get out of the way of the fire. "My house is right through here, though it may be gone," Tom Hardeston told WFAA as he watched the fire. Nearby ranchers battled to save their herds from the encroaching fire. "I'm just moving them from pasture to pasture," Cindi McCoy told WFAA, referring to her livestock. "As one pasture burns, I'm moving them back to that one and bring(ing) them back around." After reading the above, is "Fire has moved to the mountains next to the town." the correct answer to the question "Why were some evacuations lifted?"?

Answer:
yes

Question:
Tom's relaxation at the beach is interrupted by Jerry who inadvertently walks all over a sunbathing Tom going fishing . Jerry falls into Tom's mouth and while escaping , nearly causes Tom to swallow his beach towel . Jerry goes out to the pier and casts his favorite bait : cheese . Tom pulls on the line and makes Jerry reel him in . Jerry lets go of the line and Tom struggles to stay afloat , losing the string . Tom barely catches the pier , but Jerry swings the pole at him . After a few misses , Jerry whistles and then lands a direct hit . He runs to the end of the pier and pulls off the end board . Tom ca n't brake , and walks the plank until Jerry pulls it out , causing Tom to fall into the water and without emerging . A drowning Tom wakes up on the sea bed , where he finds himself still alive . He starts imitating the majestic sea creatures until he spots Jerry . The cat grabs him , but Jerry pulls away revealing that he has become a mer-mouse . Jerry swims in circles until Tom's head has done a 360 , and is then grabbed again . Jerry slaps Tom face with his tail , then spins his ears in to the shape of a wrench . The cat gives chase through shipwreck windows until Tom hangs back to swallow the mouse . Jerry breaks out through Tom's left eardrum . Jerry hides and disguises himself as a seahorse to join a father seahorse leading his babies , fooling the cat for only a while . Jerry then gets lassoed and captured , but Tom gets tricked into holding a fishing line and is caught . After reading the above, is "He started imitating majestic sea creatures then spots Jerry" the correct answer to the question "Where does Tom briefly forget about his chase with Jerry?"?

Answer:
yes

Question:
Chinese Influences: The Japanese were forced out of the Korean peninsula in the sixth century, but not before the Koreans had bequeathed to the Yamato court copies of the sacred images and scriptures of Chinese Buddhism. Just as Christianity introduced Mediterranean culture into northern Europe, so Buddhism brought Chinese culture into Japanese society. Throughout the seventh and eighth centuries numerous Japanese monks, scholars, and artists made the perilous trip west across the Sea of Japan to study Chinese religion, history, music, literature, and paintinglater to be brought back for further development in Japan. An outstanding figure of this time was Prince Shotoku, who in 604 developed the "Seventeen-Article Constitution," outlining a code of human conduct and the ideals of state as a basic law for the nation. He also established relations with the Sui dynasty in China. Through him, the Japanese imperial court developed Chinese patterns of centralized government, with its formal bureaucracy of eight court ranks. The Chinese calendar was used to calculate the year of Japan's foundation by counting back the 1,260 years of the Chinese cosmological cycle. Thus, 660 b.c. is still the official date celebrated nationwide. At this early stage in its history Japan was already (for the most part) only nominally ruled by the emperor. De facto power was exercised by the militarily and economically strongest family. The Sogas had promoted Buddhism as an imperially sanctioned counterweight to the native Shinto religion, along with the new Chinese customs, to weaken the influence of their more conservative rivals. But they in turn were ousted in a.d. 645 by Nakatomi Kamatari, founder of the great Fujiwara clan, which was to rule Japanese affairs for hundreds of years and provide prominent advisers to the emperor even up to the 19th century. After reading the above, is "Artists" the correct answer to the question "Who established relations with China's Sui Dynasty?"?

Answer:
no