Answer: He must drive at 58.8mi/hr
{3 significant figure}
Explanation: The original speed of the car to complete the journey normally is = 550mile/10hr
= 55mi/hr
The normal time to cover 120 mile with that speed is
t = distance/speed
= 120/55
=2hr, 0.18*60=11mins
= 2hr11mins.
But the driver found out he was 30mins behind at this distance, so he spent
2hr 11min +30min= 2hr41mins
For him to meet up the original schedule time 10hrs, he has
(10-2.41)hrs = 7hr19mins to cover the remaining distance of
{550-120}=430mile.
First, 7hr19mins= {7*(19/60)}hr
= {439/60}hr
Now let's find the speed at which the driver must move for him to cover for his initial delay
Speed= distance/time
= 430/{439/60}
This is same as writing
Speed = 430/439/60
Using the law of reciprocal,
Speed = (430*60)/439
= 25800/439
= 58.7699mi/hr
But we were asked to leave our answer in 3 significant figure. Therefore,
Speed = 58.8mi/hr
1 pound (lb) = 453.592 g
Therefore, 5.4 pounds will be equivalent to 5.4 × 453.592 = 2449.397 g
1 cubic inch = 16.387 cubic cm
Therefore, 13.6 cubic inches will be equivalent to 13.6 × 16.387 = 222.863 cm³
Density is given by mass divided by volume
Thus density = 2449.397 g / 222.863 cm³
= 10.991 g/cm³
Cumulus, theres three types of clouds first one is cirrus is look like a feather this kind of cloud are the most highest one between this three clouds, cumulus is a like a cotton and flat bases is located in the central of cirrus and stratus, stratus when we have this kind of clouds certainly going to rain, and these clouds are the most lower
Answer:
The answer to your question is the letter C. 3 Watts
Explanation:
Data
Power = ?
Force = 20 N
Distance = 1.5 m
time = 10 s
Formula
Work = force x distance
Power = Work/time
Process
a) Calculate the Work
Work = 20 x 1.5
Work = 30 J
b) Calculate the Power
Power = 30J/10s
Power = 3 Watts
The units of Power are Watts and the units of Work and energy are Joules.
A rocket engine obtains forward momentum through the use of fuel additives called <span>fandango additives which is usually contains oxygen. </span>