What is the distance run by a runner 50m/hr and 60m/hr?
Speed = distance/time
⇒ distance = speed × time
For speed = 50 m/hr
Distance traveled in 1 hour is 50 m.
For speed = 60 m/hr
Distance travelled in 1 hour is 60 m.
2. A runner jogs at a steady pace of 15 km/hr. When the runner is 7.5 km from the finish, a bird begins flying from the runner to the finish at 30 km/hr. When the bird reaches the finish line, it instantly turns around and flies back to the runner, and then turns around again, repeating the back-and-forth trips until the runner reaches the finish line. How many kilometers does the bird travel 3 0 km/h finish 15 km/h 7.5...
A 60M run of 53mm PVC is being installed in an outdoor carwash in Thunder Bay, Temps range from -25C to 30C. Are expansion joints required and if so how many are required at minimum?
A runner burns 190 Calories on a run. During the run, she did 4.8 * 10 ^ 5 Joules of work. How much energy did she generate as heat? If the run lasted for 15 minutes, what was her average power output?
7. A speaker produces sound with intensity level 80dB at a distance 50m. Assume it does emit isotropic sound waves and estimate: a) The sound power emitted by the speaker (3.14W] b) The minimum distance where its level is very high but cannot damage the ear, yet. [0.5m]
A runner hopes to complete the 10,000-m run in less than 30.0 min. After running at constant speed for exactly 27.0 min , there are still 1100m to go. The runner must then accelerate at 0.23 m/s2 for how many seconds in order to achieve the desired time?
A long-distance runner has an average speed of 2 m/s during a race. How far does the runner travel in 25 min?
A runner is training for a race by running up a hill. The 85kg racer runs a 40m path to reach a height of 5m above where they started (see diagram below). Their legs put in a consistent force of 320N for the entire distance a) How much potential energy did the runner gain? (2 marks) b) How much energy was put into the system (2 marks) c) If the run took 15 seconds, what is the power rating of...
Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The front runner has a velocity of 3.45 m/s, and the second a velocity of 4.25 m/s. (a) What is the velocity(in m/s) of the second runner relative to the first? m/s faster than the front runner (b) If the front runner is 250 m from the finish line, who will win the race, assuming they run at constant velocity O...
A runner taking part in the 200 m dash must run around the end of a track that has a circular are with a radius of curvature of 45 m. If he completes the 200 m dash in 29.8and runs at constant speed throughout the race, what is the magnitude of his centripetal acceleration (in m/s) as he runs the curved portion of the track? m/s² + Submit Answer
a marathon runner frequently becomes exhausted when they run
out of glycogen. to combat this, one runner decided to start
bringing small amount of food with him and chose to bring something
with a lot of calories in it:beef jerky which contains quite a bit
of protein and fat. if e
Homework due wed. Feb. 22 (10 points)-Biological Macromolecules; Prokaryotes/Eukaryotes Name: 4. The cell membrane of a newly discovered archaeal organism found living in a hot spring was found to...