Answer:
By increasing the perpendicular distance between the force and the pivot point
Explanation:
Due to the formula ,
An increase in distance would cause the turning force to increase
<em>Feel free to mark it as brainliest :D</em>
Answer:
W = F * s
Work done equals applied force * distance traveled
Apparent weight = M g (1 - sin θ) since some of applied force will lighten sled
μ = coefficient of kinetic friction
F cos θ = force applied to motion of sled
s = distance traveled
[μ M g (1 - sin θ)] cos θ * s = work done in moving sled
Note that F = μ M g if applied force is in the horizontal direction
We can use the equation of
E = mc△T
To calculate the total heat absorbed.
E is the total heat absorbed (energy used)
m is mass.
c is specific heat capacity and
△T is the temperature change.
E = 125 x 4.184 x (32.8 - 25.2)
E = 3974.8 J
Therofre the total heat absorbed is 3974.8 joules.
Answer:
T_f = 44 [C]
Explanation:
The following heat transfer equation is used to solve this type of problem.
Q = m*Cp*(T_f - Ti)
Q = 46200 [J]
Cp = 385 [J/kg*C]
m = 5 [kg]
Ti = 20 [C]
Now replacing:
46200 = 5*385*(T_f - 20)
46200 = 1925*T_f - 38500
84700 = 1925*T_f
T_f = 44 [C]