A man standing at a window 6 meters tall watches a falling stone pass by the window in 0.413 secs. From how high (meters) above the top of the window was the stone released?

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 curious child stands on the top of a 607 m skyscraper and drops a coin from the top of the…

A:

Q: A boat takes 3.0 h to travel 30 km down a river, then 5.0 h to return. How fast is the river…

A: Let, the velocity of the river = v The velocity of the boat = b

Q: A ball is thrown vertically upward with a speed of 12.0 m/s inside a bus moving at 9.0 m/s. What is…

A: Given:-

Q: Electrons in the picture tube of an old-style television travel at 1.25 × 108 m/s. At this speed,…

A: Speed of electron "v"= 1.25× 10^⁸ m/s . Distance travel "d"= 11.5 Inches = 0.2921m

Q: Kang Seulgi was fixing their tv antenna on the roof. She accidentally dropped the antenna that hits…

A: t = 2.5 s

Q: If the ball in the projectile experiment below was thrown with an initial velocity of v=2.04 m/s and…

A: Given that Horizontal velocity Vx = 2.04 m/s Horizontal displacement x = 4.99 m

Q: An automobile traveling at a speed of 30 kph accelerates uniformly to a speed of 80 kph in 10sec,…

A: Given Initial speed is given as vi=30 kph=30 km1 h×1000 m1 km×1 h3600 s=8.33 m/s Final speed is…

Q: If Seneca decides to walk across town to a store that is .95 kilometers away and she has only 25…

A: Given data :            Time = t            Distance = d                To find :…

Q: An electron started his movement with speed of 90 nanmeter/picosecond. How long (in meters) the…

A:

Q: Car a is moving at a volacity of 4.5 m/s and at an acceleration of 1.5 m/s^2 while car B is…

A:

Q: A boat takes 3.80 hours to travel 45.0 km down a river, then 6.50 hours to return. How fast is the…

A: The boat takes 3.80 hrs to cover the distance 45 km During the boat goes up v'=b-v During boat goes…

Q: How much distance does he travel ?

A: Given data; Speed of men=20 ms-1Time taken by him=60 minFind distance does he travel ?

Q: An airplane flies at 250 meters per second (m/s). How far can it travel in 60 seconds?

A:

Q: The speed of light is now defined to be 2.997 924 58 x108 m/s.Express the speed of light to (a)…

A: Power of 10 is not significant. So only 1st part is need to be considered. Every digit after decimal…

Q: If the sun is a distance of 1.5 x 10^8 km from Earth, how long does it take sunlight to reach Earth…

A: The distance and velocity is given hence time can be solved using equation below

Q: You fly 5000 km across the United States on an airliner at 250 m/s. You return two days later at the…

A: The traveled distance is, d=5000 km=5×106 m The speed of an airliner is, v=250 m/s The total time…

Q: Suppose you're watching the deconstruction of a bridge. It's blown up and the sound of the explosion…

A: Write the given values with suitable variables. t=3 sv=344 m/s Here, t is the time and v is the…

Q: A man standing at a five-meter-tall window watches a falling ball pass by the window in 0.3 seconds.…

A:

Q: For centuries, we accpeted Newton's 2nd Law as the standard model for motion. Then Einstien came…

A: γ=11-v2c2 c = 3×108 m/s

Q: The speed of light is now defined to be 2.997 924 58 × 108 m/s. Express the speed of light to (a)…

A:

Q: - The speed of light in vacuum is about: A. 1100 ft/s В. 93 х 10*6 m/s C.6x 10*23 m/s D. 3 x 10*10…

A: Electromagnetic radiation have a speed of 3 * 108 m/s in vaccum.  Since light is an electromagnetic…

Q: Sound travels at  348 m/s  in the warm air surrounding a thunderstorm.  How far  away was the…

A: Given: speed of sound, v = 348 m/s time after which thunder is heard, t = 4.31 s

Q: Calvin throws a ball straight down from the balcony of an apartment building at a velocity of…

A: Given that, Initial velocity = 3.73 m/s Time = 1.960 s

Q: Playing in the street, a child accidentally tosses a ball at 16 m/s toward the front of a car moving…

A: Expression of final velocity of the ball: vf=-u1+2u2 u1→speed of ballu2→speed of car

Q: Consider the particle moving at a speed of 100 m/s in the direction shown in the adjacent figure.…

A: the particle will have speed components in -er→  and eθ→the angle velocity vector makes with…

Q: An object has a velocity given by i = (5.0 – 12j) m. How fast, and in what direction is the object…

A: Given velocity is v=5i^-12j^

Q: At what height (in m) does the quokka's head appear on the screen? Answer:

A:

Q: A student drops a water-filled balloon from the roof of the tallest building in town trying to hit…

A: Required : Height of the building.

Q: What is the mean (average) AND mode of the following numbers? 15, 40, 44, 68, 92, 4, 68 O A. 47.29…

A: Numbers given 15,40,44,68,92,4,68

Q: A man standing at a window 5 meters tall watches a falling stone pass by the window in 0.3 seconds.…

A:

Q: 50 40 30- 20 10- -10 10 20 30 10 Danny is a lifeguard and spots a drowning child 30 meters along the…

A:

Q: A student drops a ball from a window 3.5 m above the sidewalk. How fast is it moving when it hits…

A: Given Data : The height of the window is given as s = 3.5 m.

Q: A curious child stands on the top of a 794 m skyscraper and drops a coin from the top of the…

A:

Q: Two cars A &B are driving away from each other and sounding their horns. You are the driver of car A…

A: Car A and Car B are moving away

Q: The speed of light is 3 x 108 m/s.  If it takes sunlight 8 minutes to reach earth, how far away is…

A: Given data:  Speed of light (v) = 3×108 m/s Time (t) = 8 minutes Required: Distance between Sun and…

Q: As a flag is hoisted up the mast at 15 ft/s a ship goes south 22 ft/s, and the tide moves east at…

A: All 3 velocities mentioned in the problem are mutually perpendicular , hence the net relative…

Q: A stone is thrown straight upward and it rises to a height of 3000cm. With what speed was it *…

A: Given data:   Height, h = 3000 cm

Q: If speed of light is 10m/s. Find length of a meter stick moving with 9m/s. A. 2.3m B. 1.7m C. 44cm…

A:

Q: Two cars with a distance of 100 m between them are moving in the same direction with the same…

A:

Q: A rock is dropped from a sea cliff, and the sound of it striking ocean is heard 3.4s later. If the…

A: Given,Time = 3.4 sspeed of sound = 340 m/s

Q: A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 7.96 ✕…

A: Given that, Distance = 7.96×107 km Speed of light = 3.00×108

Q: Blue light travels at the speed of light of 3.0 ×108 m/s in air. Its speed will ________when…

A: Given Speed of blue light in air  (Vo) = 3 × 108 m/s From Snell's law  sin i/sin r = n2/n1 = V1/V2…

Q: Earth is on average a distance of 2.25 x 1011 m away from Mars. If a radio signal is sent from Earth…

A: Given data:  Distance between Earth and Mars d = 2.25 × 1011 m Speed of radio signal (v) = 3.0 × 108…