fruittttstcwvwvw s https://media.tenor.co/imag
︶
Answer:
a) 0 J
b) 0.92J
Explanation:
The work is defined as:
because the normal force is perpendicular to the displacement the work done for it is zero.
The force because of frictions has an angle of 180 degrees because it is opposite to the motion, so:
I think the correct answer would be the first option. The process that would explain this phenomenon is convection. It is a mode of heat transfer which is a result of bulk movement of a substance due to the difference in density which is a result of the temperature of these substances. This transfer of heat is applicable to fluids. When the temperature of a fluid increases, the fluid expand thus decreasing its density. However, for a fluid which has a cooler temperature, it would contract resulting to a much higher density. Therefore, the warm fluid would rise up while the cooler fluid would sink below the warm fluid.
Here are the choices.
A. 200 m
<span>B. 31.25 m </span>
<span>C. 0.2 m </span>
<span>D. 5 m
</span>Pa = N/m²
<span>m² = N/Pa </span>
<span>12.5 kPa = 12500 Pa </span>
<span>m² = N/Pa </span>
<span>m² = 2500 / 12500 </span>
<span>m² = 0.2 </span>
<span>C. 0.2 m²
</span>
So the correct answer is 0.2m^2
Answer:
d=0.137 m ⇒13.7 cm
Explanation:
Given data
m (Mass)=3.0 kg
α(incline) =34°
Spring Constant (force constant)=120 N/m
d (distance)=?
Solution
F=mg
F=(3.0)(9.8)
F=29.4 N
As we also know that
Force parallel to the incline=FSinα
F=29.4×Sin(34)
F=16.44 N
d(distance)=F/Spring Constant
d(distance)=16.44/120
d(distance)=0.137 m ⇒13.7 cm