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

Q: At noon, ship A is 100km west of ship B. Ship A is sailing south at 35km/h, and ship B is sailing…

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Q: In your new job, you are the technical advisor for the writers of a gangster movie about Bonnie and…

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Q: Velocity vs Time graph y= 0.5653x + 0.202 R2 = 0.987 %3D 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0.5 1.5…

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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: In 2013 the comet PanSTARRS was seen moving across our sky at approximately 0.7 degrees per day,…

A: Givenθ=0.7° per dayr=1.6×108 km

Q: During an experiment, a signal from a spaceship reached the ground station in five minutes. What was…

A: Given that the signal travels in a straight line, the distance between the spaceship and the ground…

Q: A car goes 46 m to the right then 77 m to the left. What is it’s displacement in meters?

A: Displacement magnitude is 31 meters .

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: Jose and Joshua left the campus at 4:00 pm. Jose is riding a motorbike at the rate of 45 kph due…

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Q: Tara walks two miles north from her door to the park, then returns home to her door. What distance…

A: Distance travelled is the length of the path from the initial to the final point. If the initial and…

Q: a swimmer heading straight through a 200m wide river reaches the opposite shore in 6 min 40s. She is…

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Q: A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.85 ×…

A: Given data:  Distance (d) = 8.85 × 107 km Speed of wave (v) = 3.00 × 108 m/s Required: Time taken by…

Q: A thief escapes and boarded on a truck and traveled at a constant speed of70 kph. Two hours later…

A: The speed values are constant in these cases. The formula of the speed is given as v=dt

Q: Two runners run in a 500m diameter circular track field at the same point and opposite direction. If…

A: Given value--- diameter = 500 m. speed of one runner = 1m/s  speed of other runner = 1.5 m/s. We…

Q: A pebble is drop from a 234m cliff. How long does it take for the pebble to hit the ground? Group of…

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Q: Two cars are moving towards an intersection. One car is 180180 meters north of the intersection and…

A: Given,  y0=180180 m dydt=-1313 m Is (Going towards) x0=6060 m dydt=1010m/s (Going a way) t=55 sec…

Q: Express 3i – 4j as a product of length and direction:

A: As we know,  Vector is a type of quantity which has a magnitude and direction both. The magnitude is…

Q: A surface vessel 156 m long is to move at the rate of 6.38 m/s. At what velocity should a…

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Q: How far has a car traveled in 4 hours if it is constantly moving at 60 miles / hour? a.60 miles.…

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Q: A skydiver jumped out of a plane to shoot a skydiving scene for a certain spy movie. At what point…

A: Given,h1=911.12 mh2=497.02 mS=h1-h2   =414.1

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

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Q: A thief escapes and boarded on a truck and traveled at a constant speed of 55 kph. Two hours later…

A: Given data: Speed of the thief, vT=55 km/h Time gap, t=2 h Speed of the policeman, vP=80 km/h

Q: An aeroplane is flying towards the east in still air at 92 m/s. 24 m/s towards the north.

A: Resultant of two vectors can be determined by parallelogram method

Q: Science fiction often uses nautical analogies to describe space travel. If the starship U.S.S.…

A: Given: The speed of starship is, v = Warp 1.71 Standard value: The velocity of light is, c = 3.00…

Q: At what speed does a meteorite, whose speed is very small while it's far away from the Moon, fly to…

A: When meteorite is far away, total mechanical energy=0 when it is near the moon total mechanical…

Q: A skydiver jumped out of a plane to shoot a skydiving scene for a certain spy movie. At what point…

A: Given   Initial height H1= 4435.43 mHeight at which parachute should be opened H2= 206.83 m

Q: A stone is dropped from the top of a cliff. It is seen to hit the ground below after 3.63 ss . How…

A: Given data:  Initial velocity (V0) = 0 m/s Time (t) = 3.63 s Required: Height of the cliff

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: Land west of the San Andreas fault in southern California is moving at an average velocity of about…

A: The expression for find time is ∆t=distanceConstant

Q: A shot leaves the thrower’s hand 6.5 ft above the ground at a 45° angle at 44 ft/sec. Where is it 3…

A: The expression for the motion of the projectile

Q: A bullet is shot at 290m/s straight up from a helicopter at a height of 168m. If it accelerates…

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Q: An athlete runs with velocity 12 km/h12 km/h for 44 minutes, 16 km/h16 km/h for the next 22 minutes,…

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Q: A go-cart accelerated from 1.44 t 0.26 m/s to 6.83 t 0.19 m/s in 2.03 t0.15 s. Calculate the…

A: Given; u=1.44±0.26  m/sv=6.83±0.19  m/st=2.03±0.15 s

Q: The distance from the Earth to the moon is 239,000 miles. The distance from the Earth to the moon is…

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Q: Convert the units. What is 32 [km/hr] in [m/s]? O 2.46 x 104 [m/s] O 8.89 x 10' (m/s°] O 89 [m/s]…

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Q: Convert the units. What is 32 [km/hr²] in [m/s²]? 2.46 x 10-4 [m/s²] O 2.47 x 103 [m/s²] 8.89 [m/s²]…

A: Given:- The given data is 32 km/hr2 Required:- We have to change the unit from  km/hr2 to m/s2.

Q: An airplane left an airport and flew 105 mi in the direction of North 50.4000 deg E, then turned and…

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Q: At noon, ship A is 110 km west of ship B. Ship A is sailing east at 25 km/h and ship B is sailing…

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Q: The speed of light is written in scientific notation as 3.00x10^8 m/s. How would you write this in…

A: Option 1 is the right answer  300,000,000 m/s

Q: A car is traveling at the speed of 72.0kph. Unfortunately, the car's driver sees a man standing…

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Q: Rohan covers rd of a certain distance in 2 hours 30 minutes at the rate of x kmph. He covers the…

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Q: An airplane left an airport and flew 105 mi in the direction of N 50.4000 deg E, then turned and…

A: Given: The first displacement is 105 mi. The direction is 50.4 degrees East. The second displacement…

Q: Convert the units. What is 32 [km/hr²] in [m/s]? O 8.89 [m/s2] O 2.46 x 104 [m/s²] O 8.89 x 101…

A: A = 32 kmhr2To convert : the given value in ms2