21) One rock is dropped from the top of a cliff of height h at the same time as a second rock is tossed upward at speed v. if the rock that was tossed upward takes twice as much time to reach the ground as the one that was dropped, what was the initial speed, v, of the rock that was thrown (state in terms of g and h)? 22) A 0.50 kg cart moves on a straight horizontal track. The graph of velocity v versus time t for the cart is given below. a. Indicate every time t for which the cart is at rest.
Cowan 2 At the 10° incline of the ramp for the distance of 96 centimeters (cm), the average time was 1.04 seconds (s). For the first trial at this distance, the time was 1.09s, the second trial time was .88s, and the third trial time was 1.16s. For the distance of 80cm, the average time it took the ball to roll down the ramp was .86s. For the first trial the time was .86s, the second trial time was 1.01s, and the third trial time was .70s. For the distance of 64cm, the average time it took the ball to roll down the ramp was .62s.
M. Record heart rate 5 minutes after running the 440. ___820___ Part II: Principle of Progression If you were able to jog one mile in 10 minutes, how would you progressively increase your performance by using each of the following? Be specific by using numbers in your answers. 1. (F) frequency variable?
He decided to slide feet first about fifteen feet down into the drainage pipe so he could toss the match. The explosion from the gasoline shot Mr. Michaels back to the patio where he started. He left the pipe like “a Polaris missile leaves a submarine” said one of the drunkards. Mr. Michaels was “launched directly over his own home, right over the heads of his astonished friends, onto his front lawn” says Mikkelson. Thankfully, Mr. Michaels only suffered minor injuries from the explosion.
18 minutes after the first plane hit, a second United Airlines Flight appeared out of the sky and suddenly turned toward the World Trade Center and plowed into the south tower near the 60th floor. The collision caused an explosion that threw burning debris over nearby buildings and the streets below. Americans then realized they were under
Then, the day after the nuclear explosion, the contaminated dust and water rain down and contaminate a large area. This rain is known as the fallout. The head wave comes from the gigantic energy that develops from the detonation. In the center of the detonation, the temperature can reach several million degrees. The head wave only takes a few seconds, but it kills everyone within a three-mile radius.
The ship carried a king’s ransom in various treasures and precious materials. During the trip Jacobsz and Cornelisz made a plan to hijack the ship and start a new life somewhere else using all the supply of gold and silver onboard. Then around midnight on June 4, 1629 the Batavia struck a reef in the Abrolhos Islands, some 80 km off the Western coast of Australia. As soon as the situation became clear evacuations to near by islands commenced, but unfortunately 40 drowned. Pelsaert, being the commandeer went to seek help from the port of Batavia with 30 others at his side as it was some 1,200 miles away.
Niko Winstral saw people free-falling backwards with their hands out, as if they were parachuting. Joe Duncan on his roof on Duane Street looked up and saw people jumping. Henry Weintraub saw people “leaping as they flew out.” John Carson saw six people fall, “falling over themselves, falling, they were somersaulting.” Steve Miller saw people jumping from a thousand feet in the air. Kirk Kjeldsen saw people flailing on the way down, people lining up and jumping, “too many people
After a brief career in the Marine Corps, Oswald was discharged and defected to the Soviet Union, but later returned to the United States and was employed at the Texas School Book Depository at the time of JFK’s assassination. Oswald was present in the Book Depository on November 22, and a Mannlicher-Carcano rifle was found on the sixth floor (Warren Commission, 1964, p.6, 12). The rifle, according to the Warren Commission, is the weapon used to fatally shoot the President and belonged to Lee Harvey Oswald. A Mannlicher-Carcano is a bolt action rifle and requires a minimum of 2.3 seconds to recycle (Warren Commission, 1964, p.