Answer:
B) convection
Explanation:
Heat convection is the result of heat conducting between fluid or gas and solid, and is closely related to the flow of the fluid and condition of the interface.
Answer:
The answer is C.<em>19.8 m/</em><em>s</em><em> </em>because it's their common velocity after the collision of the two cars.
Explanation:
Hello !
look at the attachment above ☝️ and if you have any questions you're welcome.
Answer:
380000 km
Explanation:
The number is 380000
From the right
The first digit is the ones place
The second digit is the tens place
The third digit is the hundreds place
The fourth digit is the thousands place
The fifth digit is the ten thousands place
The sixth digit is the hundred thousands place
While reading a number we read the first digit on the left and add which place it is at.
Then the next digit as well as the place it is at.
Here the 3 is at the hundred thousands place. So, we say three hundred.
Then we read the next digit which is 8 and is at the ten thousands place.
So, we say three hundred and eighty thousand
Answer:
1. Leaving trash on the ground and not picking it up.
2. Polluting the lake, if your neighborhood has one.
3. Outside people come and dump their waste to your neighborhood.
Hope this helps!
Answer:
70 mph
Explanation:
We can write the position of the car at time t as
where is the speed of the car, while the position of the truck is
where
is the initial distance between the car and the truck (at 3:00 pm)
is the speed of the truck
The car overcomes the truck when they have same position, so
This occurs at 4:30 pm, so 1:30 h (1.5 h) after the initial instant. So, by using
t = 1.5 h
And solving the equation for , we find the speed of the car: