Answer:
So car will go 50 km in 15 minutes
Explanation:
We have given speed of the car = 200 km/hour
Time t = 15 minutes
We know that 1 hour = 60 minute
So 15 minute =
We have to find the distance
We know that distance = speed ×time = 200×0.25=50 km
So car will go 50 km in 15 minutes
So option (d) will be the correct option
Answer:
I am 98% sure that the answers are B and A
Explanation:
Answer:
23L
Explanation:
Given that:
Initial volume of water = 30mL
Final volume of water after an object was placed on it = 53mL
The volume object added which resulted in a rise to 5mL will be :
Final Volume of object - Initial volume of object
53 mL - 30mL = 23mL
Hence, volume of object added is 23 mL
Answer:
d = 5 inch
Explanation:
First to all we need to get the expression to calculate the horsepower.
The expression to use is the following:
hp = k * v * d³ (1)
Where:
hp: horsepower
v: speed (in rpm)
d: diameter
k: constant of horsepower.
The value of k, because is a constant, will be the same when the shaft is transmiting 375 hp at 50 rpm. So, with the first data, we can calculate the value of k, and then, the value of the diameter
Solving for k in (1) we have:
k = hp / v * d³
replacing the data:
k = 36 / 75 * 2³
k = 0.06
With this value, we can solve for d and we have:
d = ∛hp / k * v
d = ∛375 / 50 * 0.06
d = 5 inch
Answer:
1.65 h
121.39 km
Explanation:
Given that
speed of the driver, v = 99.5 km/h
time spent resting, t = 26 min
Average speed of the driver = 73.6 km/h
check attachment for calculation and how I arrived at the answer