Answer:
-200 N
Explanation:
The cabinet moves at constant velocity, so that means there's no acceleration.
Applying Newton's second law to the cabinet:
∑F = ma
F + 200 = 0
F = -200
The friction force is 200 N in the opposite direction.
Answer:
Q = 73325 J or 73.325 KJ
Explanation:
Given the following data;
Specific heat capacity of water = 4190
Mass = 0.5kg
dt = 65 - 30 = 35°C
Heat capacity is given by the formula;
Q = mcdt
Where,
Q represents the heat capacity.
m represents the mass of an object.
c represents the specific heat capacity of water.
dt represents the change in temperature.
Substituting into the equation, we have:
Q = 0.5 * 4190 * 35
Q = 73325 Joules.
Answer:
Tar
Explanation: Tar is a big ingredient in cigarettes and can cause the sticky substance
Answer:
When you ask a question, only two people can answer. When there are two answers, a little crown should appear at the bottom right hand corner. All you have to do is click the crown and it gives Brainliest. But you can only give it to one person per question
Explanation:
Answer:The strong nuclear force pulls together protons and neutrons in the nucleus. At very small distances only, such as those inside the nucleus, this strong force overcomes the electromagnetic force, and prevents the electrical repulsion of protons from blowing the nucleus apart.
Explanation:
