I believe the answer is 3). The cell wall provides protection, it doesn’t control movements of materials in and out of the cell.
For this case, what we must do is to rewrite these measurements in the same unit in order to compare them.
By writing the measurements in meters we have:
Therefore, physically the correct measure is:
Answer:
the length of a student's textbook most likely is:
30 centimeters
Required Heat = Q
Q = Mass * specific heat of water * change in temp.
Q = 5g * 1g/cal*degC * 20degC
Q = 100 cal of heat is required
To convert calories to Joules,
1 cal = 4.184 Joules
100cal = 418.4 J of heat is needed
Answer:
An open umbrella would not hit the ground in front of the closed one.
Explanation:
The closed umbrella would impact first because it did not have as much air pressure. The open one has air that presses against it and makes it reach where the open umbrella floats but falls slowly
Answer:
I only know how to answer 22
which is 250 J
Explanation:
KE: 1/2 mv^2
m- 5kg
v- 10 m/s
KE: 1/2 × 5 × 10^2
= 250 J
