Answer:
Laurens suv have been travelling 60km/h speed if she can covers the distance of 10 kilometers in 5 minutes.
Explanation:
As per the given question,
Distance = 10 km
Time = 5 minutes
Convert minutes into hour.
There are 60 minutes in one hour, hence 5 minutes in hours is written as
We know the relationship between distance, speed and time is as follows,
Speed = 120km/h
Laurens suv exceeds the limit by = 120 – 60
Thus the speed limit exceeds by 60km/h
.
The answer would be the coulombs law.
Answer:
a) It will take you 16.94 min to climb the stairs.
b) The numbers of flights are 123 flights.
Explanation:
a) Let the energy consumption while climbing the stairs be 685 W in kcal/min is given by:
rate of energy consumption = (685 W)×[(0.01433kcal/min)/1 W]
= 9.81605 kcal/min
the time it takes to climb the stairs is given by:
t = E/P
= (166.0 kcal)/(9.8 kcal/min)
= 16.94 min
Therefore, it will take you 16.94 min to climb the stairs.
b) Given t is the time it takes to climb stairs and N is the number of stairs to climb per min, then the number of stairs is:
n = t×N
= (16.94)×(116)
= 1965 stairs
given the number of stairs each flight as N1, then the number of flights is given by:
flights = n/N1
= (1965)/(16)
= 123 flights
Therefore, the numbers of flights are 123 flights.
If the rock is just sitting there and you want to SLIDE it, then you have to push it with a force of at least
(251 kg) x (9.8 m/s²) x (μ) =
(2,459 Newtons) x (the coefficient of static friction on that surface)
