The height h in feet of an object that is dropped from a height of a feet is given by the formula h= s -16t2 , where t is the time the object has been falling. A 5-foot-tall woman on a sidewalk looks directly overhead and sees a windows washer drop a bottle from 5 stories up. How long does she have to get out of the way? Round to the nearest tenth. A story is 12 feet.

Q: A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of…

A: Given data: The distance between Mars and Earth d = 7.86×107 km speed of light v =3×108 m/s

Q: A rocket is fired upward with a velocity (v) of 670 feet per second.Find how many seconds pass…

A: Given that, S=-16t2+670t If the rocket reached the ground, the S = 0 0=-16t2+670t16t2=670tt=67016…

Q: Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such…

A:

Q: Question 9. Michael Jordan, formerly of the Chicago Bulls basketball team, has some fanatic fans.…

A: Time of flight ,t= 2 sec

Q: In 2015, a Japanese high-speed train set a record— traveling at 374 mph during a test run near Mt.…

A: Given speed  V=374 mph and 1 mile=1609 m=1.609 kilometres  since we know that 1 kilometres =1000…

Q: Using highway mileposts, you clock 4 min,45 s to go 5 m. If the mileposts are accurate, what's the…

A:

Q: Dan Koko fell a distance of 312 feet into an airbag after jumping from the Vegas World Hotel and…

A: Given in question - Distance(D) = 312 feet                                  Distance formula: d =…

Q: As a person drives along the the highway, they decide to measure the distance between each light…

A: Given information: The speed of the car (v) = 60 mile/hour…

Q: From the very top of the new One World Trade Center Tower in New York City, an object would take…

A:

Q: An object is dropped from rest and takes 2.83 seconds to reach the ground below. From what distance…

A: Given Data: The initial velocity of an object is, u=0 m/s The time required to reach below the…

Q: With the ability to measure the motion of land masses, continental drift has become an established…

A: The drift rate is given as,

Q: A jet airplane reaches 863 km/h on a certain flight. What distance does it cover in 5.0 minutes? Set…

A: Speed of jet plane,                                 Time,                                  We need…

Q: A postal employee drives a delivery truck over the route shown in Fig. E1.25. Use the method of…

A: Given data: A road track is given for the motion of truck.

Q: A nerve impulse travels along a myelinated neuron at 60.3 m/s. What is this speed in mi/h and What…

A: Given in question - Speed of neuron (v) = 60.3 m/s To find - What is this speed in mi/h and What is…

Q: . A stone dropped from a building takes 4 s to reach the ground. The height of the building is (a)…

A: Given data: Initial velocity (V0) = 0 m/s Time (t) = 4 s Required: The height of the building

Q: Why is it km and not meters, if c = 3x10^8 m and G has meter in the constant

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Q: (a) Number (b) Number i 3.36 i 1.80 Units m/s Units m/s

A:

Q: A creature moves at a speed of 5 furlong per fortnight. Given that 1 furlong = 220 yards and 1…

A: Given: Distance, d = 5 furlong Time, t=1 fortnight   To determine the speed of the creature in m/s.

Q: One day you decide to walk 8 km [S], then 6km [W] and finally 3.5km [N]. Find your total…

A: Given data:  Displacement (d1) = 8 km [S] d2 = 6km [W]  d3 = 3.5km [N] Required: The total…

Q: A tortoise is walking in the desert. It walks at a speed of 3 meters per minute for 93.75 meters.…

A: Given Speed of the tortoise is v=3 m/min Distance covered by the tortoise is d=93.75 m   We have to…

Q: Abdul, while driving to school. computes the average for his trip to be 20km/h. On his return trip…

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Q: How much more rapidly does it go when measured in nanoseconds as opposed to milliseconds?

A: When it comes to measuring time, every fraction of a second counts. That's where nanoseconds and…

Q: A bird flies north at 20m/sec for 15 sec. it rest for 5 sec and then flies south at 25 m/sec for 10…

A:

Q: A car has acceleration of 4 m/s2 and starts from 1.8 m/s. What is its speed after 7.4 seconds, in…

A: Given acceleration a=4m/s2Initial speed u=1.8mstime t=7.4 s

Q: A car can accelerate from 0 to 60 miles per hour in 3.2 s. What is its average acceleration, in…

A: Given : vi = 0 miles per hour = 0 m/s vf = 60 miles per hour = 26.8224 m/s dt = 3.2 s

Q: Complete the following table and answer the questions given below. height h (cm) Time t, (s) Time tz…

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Q: distance that Larry would cover

A:

Q: A driver traveling north slows down from 35.4m / s to 0m/s in 8.6 seconds. What is the magnitude of…

A: Solution:-Given thatInitial speed (u)=35.4 m/sFinal speed (v)=0 m/stime (t)=8.6 s

Q: The speed of propagation of the action potential (an electric signal) in a nerve cell depends…

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Q: A slow jogger runs å milè 16 minutes Calculate the speed (a) in/s in/s (b) m/min m/min (c) km/h

A: Here, we calculate the given as follow;

Q: A ball rolls off a table 100 cm high with a speed of 2.5 m/s. How far will it travel horizontally…

A: Given Horizontal velocity = ux = 2.5 m/s IInitial vertical velocity = uy = 0 m/s Height = h = 100 cm…

Q: A space probe on the surface of Mars sends a radio signal back to the earth, a distance of 7.37 x…

A:

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.