Answer:
The new temperature is 
Explanation:
From the question we are told that
The coefficient of linear expansion is 
The temperature is 
The radius of the frames is 
The new radius is 
The change in radius is mathematically represented as
substituting values
The increase in radius can also be mathematically represented as
Where 
is the the new temperature , making it the subject we have
substituting value
Answer:
Acceleration= 1,59 (meters/(second^2))
Direction= NE; 65,22° above the east direction.
Explanation:
Resulting force= ( ((180N)^2) + ((390N)^2) ) ^ (1/2) = 429,53 N
Angle obove the east direction= ((cos) ^ (-1)) (180N / 429,53 N) = 65,22°
Acceleration= Resulting force / mass = (429,53 N) / (270 kg) =
= (429,53 kg × (meters/(second^2))) / (270kg) = 1,59 (meters/(second^2))
Answer:
D. When its weight is equal to the buoyant force exerted by the water.
Explanation:
A fluid exerts an upward force on a body submerged in it. This force that tends to lift the body is called floating force.
The flotation force that acts on a body submerged in a fluid is equal to the weight of the fluid displaced by the body and acts upward passing through the centroid of the displacemented volume.
Answer:
first 2 yes 3rd one no 4th one yes last one no
Explanation:
