a distant star, the velocity of an asteroid changes from from +20.7 km/s to −19.1 km/s over a period of 2.19 years. (a) What is the total change in the asteroid's velocity? (Indicate the direction with the sign of your answer.)   (b) What is the asteroid's average acceleration during this interval?

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: A robot has been designed and is tested on the course above (A-B-C-D-E). If the robot takes 3.4…

A: Required to find the average speed of the robot.

Q: Shown below is a graph of velocity versus time for a moving object. The object starts at position x…

A: Given Data:  Initial position of object x=0 m Final time t=2 s At t=2 s, velocity (v)= 10 ms

Q: A car drives horizontally off the edge of a cliff that is 60.5 m high. The police at the scene of…

A:

Q: A car accelerates with a constant acceleration of 1.5 m s2 along a long straight road. How long does…

A:

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

A:

Q: A runner travels 50 m over a duration of 12.6 s. She took 29 steps over the 50 m. What was her…

A: Distance (d) = 50 m Time (t) = 12.6 s Total  number of steps to cover 50 m distance is 29 .       n…

Q: If it takes a horse 175 seconds to make 3.00 laps around a horse track (each lap is equal to 1.00…

A: Average velocity  V = distance covered/time.   V= r/t.

Q: A car goes from point A to point B. The speed of the car is constant at 88 km/hr for 65% of the…

A:

Q: Problem 2: A car is traveling at a speed of 33 m/s. art (a) What is its speed in kilometers per…

A: Given:  Speed  of car            S=33 m/s   we  have  to find  S  in  Km/h

Q: a shoe was dropped from a building and passes the third floorin 0.25 seconds. if each floor of the…

A: Given:Each floor of the building has a height = 4.5 metersTime,t=0.25 secFind high above the third…

Q: An astronaut is rotated in a horizontal centrifuge at a radius of 5.6 m. How many revolutions per…

A: Radius , r = 5.6 m Acceleration = 5.3g To find = revolutions per min

Q: An adventure racer ran 1.7 km north, then 3.2 km 63° to the south of due east, then 1.4 km west. She…

A: Answer..

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

A:

Q: (a) Calculate Earth's average speed (in m/s) relative to the Sun. m/s (b) What is its average…

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: Your car travels north along the highway at a constant speed of 65 mph for 30 minutes. Compute the…

A: Given: Initial velocity (u) = 65 mph Time (t) = 30 minutes = 30/60 = 0.5 hours

Q: A gnat takes off from one end of a pencil and flies around erratically for 17 s, seats on a wall for…

A: Formula for average speed is  v = total distance traveled/ total time taken  Given  Total distance…

Q: A stone thrown downward with an initial velocity of 44.1 m/sec will travel a distance of S meters,…

A: We are given initial velocity. We are given initial height. We are also given the initial velocity.…

Q: The a - s graph for a boat moving along a straight path is given. (Figure 1) Figure 1 of 1 a (ft/s²)…

A: Given that for a boat, which moves in a straight line path The acceleration of the boat is  a=5…

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: a) What is the average speed in kilometers per second of the Earth around the sun, given that the…

A: Radius of the earths orbit, r=1.5×108 kmThe distance covered by the earth in one complete revolution…

Q: Sleds propelled by rockets are used to study how humans react to sudden acceleration. If a…

A: Initial velocity = 0 m/s Final velocity = 442.82 m/s  Time taken = 1.71 seconds

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:

Q: An object was observed to have velocity v1 in m/s at time t1 seconds and later velocity v2 in m/s at…

A:

Q: how many kilometers will you travel in a span of 2.5 h if you are going at a speed of 5.0m/s?

A: Given , Time = 2.5 h = 2.5×60×60s = 9000 s  Speed = 5.0m  We know that distance = speed×time

Q: If an average-size man jumps from an airplane with an open parachute, his downward velocity t…

A:

Q: A rabbit runs across a parking lot. The coordinates of the rabbit's position (in meter) are given by…

A: Given : The x -coordinate of position vector is,  x=12.3t The y-coordinate is,  y=x22.4 The…

Q: The velocity of a package traveling along the axis is shown as a function of time in the figure…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: A bird flew 635 km from Cebu to Manila with an average speed of 35 m/s. How long, in hours, did it…

A: Given: The distance covered is 635 km. The average speed is 35 m/s.