1) I did time=distance/speed. my sum was 170/35=time. My answer was 4.85714. How do i show that in hours and the nearest minute? 2) Again, i used the same formula for another question...
1) I did time=distance/speed. my sum was 170/35=time. My answer was 4.85714. How do i show that in hours and the nearest minute? 2) Again, i used the same formula for another question...
A car of mass m has an engine which can deliver power P.The minimum time in which car can be accelerated from rest to a speed v is (a) (mv^2)/2P (b) Pmv^2 (c) 2Pmv^2 (d) (mv^2)P/2...
(part 1 of 2) : A ship leaves port at noon and has a bearing of S 21 ? W. a) If the ship sails at 22 knots, how many nautical miles south will the ship have traveled by 6:00 PM...
Benjamin fires an arrow from a castle wall 10m high. It leaves the bow with a speed of 40m/s directed 37° above the horizontal. a) Find the initial velocity components b)...
The Cunninghams are moving across the country. Mr. Cunningham leaves 2.5 hours before Mrs. Cunningham. If he averages 40 mph and she averages 65 mph, how long will it take Mrs. Cunningham to overtake...
At a certain time, Janice notices that her digital watch reads a minutes after 2:00. Fifteen minutes later, it reads b minutes after 3:00. She is amused to note that a is six times b. (Source: Ma...
Problem: A stone is dropped into a deep, well. You don't see the stone hit the water, but you hear it splash 4 seconds after it's dropped. What is the distance from the top of the well to the surface...
Driving at 75m/s, you hit the brakes on your new car, accelerating at a rate of -20m/s. How long will it take the car to come to rest? Show work (Acceleration or Average Speed)
Riding your bike, you can accelerate at a rate of 1.5m/s^2. If you accelerate for 17 seconds, how much speed will you gain? (s) = seconds SHOW WORK (Average Speed or...
Your new car can go 0-90 m/s in 5 seconds. What is your car's acceleration? Show work (Average Speed or Acceleration)
Riding your bike, you can accelerate at a rate of 2m/s^2. If you start from rest, how long will it take to reach a speed of 20m/s? Show work (Average Speed or Acceleration)
30 minutes of 9:30 am
A figure skater can increase her angular velocity from a speed of 2.00 revolutions in 3.00 seconds to 5.00 revolutions in 2.00 seconds by bringing her arms in. If her moment of inertia was 4.60 kg...
The new blade on my table saw has a radius of 15.0 cm. My table saw has a maximum speed of 3750 rpm. If it takes 2.50 seconds to get up to this final speed, what is the tangential velocity of the...
I am having a lot of trouble with this question. it is due by tomorrow so if you are reading this and it's past 8:00 on March 29th 2015 you don't have to answer
Below is Brianna’s daily schedule. For each activity, identify the elapsed time from its beginning to its end. Be sure to show your work. Finally, explain why your answer is correct. Schoolwork:...
Simran and Champ are walking at a constant speed, though not the same speed as one another. Simran walks from Point A to Point B, while Champ walks from Point B to Point A. They both leave at sunrise,...
Two jets leave an air base at the same time and travel in opposite directions. One jet travels 83 mph slower than the other. If the two jets are 6005 mi apart after 5 hours, what is the rate of each...
A car drives down a road in such a way that its velocity (in m/s) at time t (seconds) is v(t)=2t1/2+5 Find the car's average velocity (in m/s) between t = 2 and t = 6.
A truck begins a trip at noon. From noon until 345pm the truck travels with a speed of 45 miles per hour. From 345pm until the truck ends it's trip the truck travels with a speed of 55 mph. At what...