Chris drops a soda can from the top of a New York skyscraper. It takes 8.6 seconds for the soda can to hit the ground and explode. How tall is the skyscraper
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Chris drops a soda can from the top of a New York skyscraper. It takes 8.6 seconds for the soda can to hit the ground and explode. How tall is the skyscraper?
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- Some cats can be trained to jump from one location to another and perform other tricks. Kit the cat is going to jump through a hoop. He begins on a wicker cabinet at a height of 1.769 m above the floor and jumps through the center of a vertical hoop, reaching a peak height 3.135 m above the floor. (Assume the center of the hoop is at the peak height of the jump. Assume that +x axis is in the direction of the hoop from the cabinet and +y axis is up. Assume g = 9.81 m/s².) (a) With what initial velocity did Kit leave the cabinet if the hoop is at a horizontal distance of 1.570 m from the cabinet? (Express your answer in vector form. Give your answer to at least two decimal places for each vector component.) Vo m/s (b) If Kit lands on a bed at a horizontal distance of 3.584 m from the cabinet, how high above the ground is the bed? m Need Help? Read ItMigrating land mammals are often called runners because of the large distances that they can cover in one day. The velocity (speed) of a migrating land mammal or runner in relation to its mass can be modeled by the equation V(m) = 9.31m0.12, where m is the mass of the animal in kilograms and V is the velocity in kilometers per day. Round your answers to the tenths place, if necessary. Part A: Complete the table by determining the velocity of several different runners. Animal Mass (kg) Velocity (km/day) Grey Wolf 40 14.494 OB Zebra American Buffalo African Elephant 270 900 5000 Answer: It will travel 1 18.227 Part B: How does the mass of the elephant compare to the mass of the zebra? How do their velocities compare? 21.062 X Answer: The mass of the elephant is 18.51 elephant is 1.419 x times that of the zebra. Answer: Answer: The mass of the buffalo is 22.5 1.5 ✓o times that of the wolf. OB 25.872✓ O Part C: How does the mass of the buffalo compare to the mass of the wolf? How do their…A 5.0 kg cannonball dropped from a cliff hit the ground at a velocity of 70 m/s. What was the height of the cliff? Question 15 options: 14 m 350 m 250 m 12,250 m
- One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters. c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube? d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?A block is sliding along a frictionless surface at 19.1 m/s. The block slides down a hill. At the bottom of the hill, the block is sliding at 37.1 m/s. How tall (in meters) is the hill?Spac. Heading 1 Heading 2 Title Subtitle Paragraph Styles Name A very bored and careless person fired a bullet into the block shown. The bullet lodges into the block and the block reaches a maximum height of 2 meters. What was the initial velocity of the bullet? Don't try this at home! = 23 Bl.k Marlle
- You are a police officer examining the scene of a car crash that claimed the life of someone driving a Tesla. There was a collision involving them and a pickup truck. The truck driver, who survived, said he was travelling North into the intersection and the Tesla was travelling East into the intersection. The truck driver claims that he was not exceeding the speed limit when the accident occurred. You note the posted speed limit was 80 km/h. Like airplanes, Teslas have a black box that records various statistics in the event a collision occurs. After analyzing the data from the black box, you discover the Tesla was driving at a velocity of 69.6 km/h [E] when the collision occurred. You google the mass of both of the vehicles and find the Tesla should be about 2020 kg and the truck should be about 2820 kg. During the collision, the two vehicles crumpled and became entangled, the skid marks revealing that the two vehicles travelled E 68° N after impact. How fast, in km/h, was the truck…A firecracker moves vertically upward and after reaching the highest point in its vertical trajectory, it starts falling down. After it falls down by 17.7 meters in air it cracks into two identical pieces. One of the pieces shoots off horizontally with 11.8 m/s speed. What would be the magnitude of the velocity of the other piece right after they split? Enter your answer in m/s. On your paper, show both your calculation for the magnitude and also the direction of the velocity vector of the second piece. Show your work in detail including your physics- based reasoning.A block is sliding along a frictionless surface at 11.1 m/s. The block slides down a hill. At the bottom of the hill, the block is sliding at 36.5 m/s. How tall (in meters) is the hill?
- Emily throws a soccer ball out of her dorm window to Allison, who is waiting below to catch it. Emily throws the ball at an angle of 30° below horizontal with a speed of 12 m/s, and Allison catches it 2.5 s later. What is the vertical distance between Emily and Allison, in meters? Use g = 10.0 m/s2.Typing2.