A stone is dropped from the edge of a roof, and hits the ground with a velocity of -160 feet per second. How high (in feet) is the roof? Answer:

Q: mountain climber descends at a rate of 20 meters per second. how far will he bescend after 6 second

A:

Q: What is the magnitude in the Richter scale of an earthquake that released 10 joules of energy? (5

A: Direct use the formula of Richter Scale and substitute the given values then simplify.

Q: Each side of a square is increasing at a rate of 2 cm/s. At what rate is the area of the square…

A:

Q: A TikTok with 4380 views starts to go viral. The views are increasing at a rate of 27% per hour. How…

A: Solution-  Given  Initial views P0= 4380 r ( exponential growth) = 27% or 0.27 t = 10 hours Formula…

Q: a boat travels 30 km upstream in the same time it takes to travel 46 km downstream if the current…

A: given ,  upstream distance = 30km downstream distance = 46km rate of stream = 6kph

Q: A ball is thrown straight down from the top of a 220-footbuildingwith an initial velocity of −22…

A: Use the position function, s(t)=-16t2+v0t+s0 and substitute v0 and s0 with -22 and 220,…

Q: The radius of a circle is increased from 2.00 to 2.02 m. Express the estimate as a percentage of the…

A: The radius of a circle is increased from 2.00 m to 2.02 m. That is, Now consider the area of the…

Q: A person running at 45 kilometers per hour (KPH) is riding a train at 120 KPH going to Manila. Who…

A: Given that , Speed of a person = 45KPH  Speed of a train = 120KPH  Because, we have same unit of…

Q: Movement along the San Andreas Fault Averages 6 cm/year. At this rate, how long will it take for Los…

A: Given : Average movement of San Andreas Fault= 6 cm/year

Q: A stone is dropped from the edge of a roof, and hits the ground with a velocity of -110 feet per…

A:

Q: 3. What is the velocity after 7 seconds?

A: Explanation of the answer is as follows

Q: The unit area and unit volume total project costs for a library are $114 per square foot and $7.55…

A: Given: The unit area and unit volume total project costs for a library are $114 per square foot and…

Q: 10. A stone is dropped from the top of a building 1024 ft. high. When does it hit the ground and…

A: Solution : We have given that a stone is dropped from the top of a building 1024 ft. high. And we…

Q: If you travel one mile in 59 seconds, what is your approximate average speed? What is your exact…

A: Since, it is given that if we travel one mile in 59 seconds, then our aimis to tell the average…

Q: A bicycle wheel 26 inches in diameter travels 20 inches in 0.10 seconds. what is the speed of the…

A: Given that a bicycle wheel has a diameter 26 inches travels 20 inches in 0.10 seconds.The radius of…

Q: A cyclist covers his first five km. at an average speed of 10 km. p.h., another km. at 8 km. p.h.…

A:

Q: Noah rides his bike 10 km in 30 minutes. What is his average speed in kilometers per hour?

A: average speed = total distance/ total time  Here total distance = 10 km total time = 30 minutes=…

Q: - An object travels 8 miles in 20 minutes at a constant speed. What is the obiect's speed in miles…

A: Object travels 8 miles in 20 mins 20 mins = 20/60 hrs = 1/3 hrs Then speed = dist / time

Q: At the 2012 Busan Open Challenger Tennis Tournament is Busan, South Korea, the Australian Samuel…

A:

Q: How far will an aircraft travel in 7 minutes, 12 seconds with a groundspeed of 125 knots?

A: The length of a path between two points is called distance.

Q: The rock hits the surface after 5.38 seconds. With what velocity will the rock hit the surface?

A: Given H=15t-2.79t2 Velocity can be obtained with  differentiation of height. V=dH/dt

Q: A ball is dropped from the top of a building 400 ft high.How long does it take to reach the ground?…

A:

Q: When performing the basic​ "Camel" move, a figure​ skater's upper body and free leg are extended…

A:

Q: Toronto’s Pearson International Airport has a high-speed version of a moving walkway. If Liam walks…

A: Consider the given information. Liam walks at a normal rate of 1.5 meters per second. Let the…

Q: 3. Scientists have measured that an adult female cheetah can accelerate to 65 miles per hour in 3…

A: This question is based on the concept of uniform speed or constant acceleration. Given: Speed of…

Q: 2. A airplane, flying with the wind, took 2 hours to travel 1000 km and 2.5 hrs in flying back. What…

A:

Q: What is the height of a projectile in 2 seconds if its initial height is 500 ft, and it has a…

A:

Q: During the construction of a high-rise building, a worker accidentally dropped his portable electric…

A: After t seconds, the screwdriver falls a distance s=16t^2.

Q: A car traveling on the Taconic parkway travels 84 miles in two hours. What is the cars speed (a…

A: Given: The distance travelled by the car in two hours is 84 miles.

Q: An object dropped from a height of 180 meters   hits the ground with velocity ???

A:

Q: b) A train runs 240 miles at a speed of 60 m.p.h., another 480 miles at a speed of 80 m.p.h., then…

A: first part distance of journey travelled D1 = 240 miles speed of the the train in the first part of…

Q: The London Eye is a Ferris wheel in London, England, that travels at a speed of 0.26 meter per…

A:

Q: A projectile is shot upwards from the surface of the earth with an initial velocity of 120 meters…

A: To determine: The velocity of a projectile after 6 seconds and after 9 seconds where a projectile is…

Q: An engine loses 4.2 horsepower through friction. the power loss is 6% of the total rated horsepwoer.…

A:

Q: During a heavy rainstorm, a city in Florida received 129 nches of rain 25 hours. What is the…

A: As Florida receives 1214=494 inches of rain in 2512=512 hours, the approximate rainfall rate in…

Q: An airplain makes a 2,748 mile flight in 6 hours. what is the airplain's average rate of speed in…

A: From the given statement, the airplane flies 2,748 miles in 6 hours.

Q: A starfish's top speed is approximately 161 centimeters per minute. What is this speed to the…

A:

Q: An accident investigator measured the skid marks of one of the vehicles involved in an accident. The…

A:

Q: A Dallas Cowboy carrying the ball straight down the near sideline with a velocity of 8 m/s crosses…

A: Given         50 yd =150 ft        150 ft =45.72m    and  13.7m.

Q: A dynamite blast blows a heavy rock straight up with a launch velocityof 160 ft/sec (about 109 mph)…

A: Rock reaches a height of

Q: A projectile fired downward from a height of 112 ft reaches the ground 2 seconds. What is the…

A:

Q: A square baseball diamond has sides that are 90 feet long. A player is running to third base at a…

A: Solution

Q: Light. Light travels 558,000 mi in 3 sec. e speed, in miles per second?

A: Known fact:: speed=distancetime

Q: Researchers record t in miles per gallon) a hour). Using software egression line of the

A: te

Q: Find the distance traveled in 15 seconds by an object traveling at a constant velocity of 20 feet…

A:

Q: OA man 6 ft tall walks at a rate of 6 ft/sec away from a lamppost that is 19 ft high. At what rate…

A:

Q: Write the formula of Average speed?

A: Given that : The term Average speed.

Q: The area of a circular playground is 22176 cm2 .Find the cost of fencing this ground at the rate of…

A:

Q: A car is driving at 40 Kilometers per hour. How far, in meters, does it travel in 2 seconds?

A: