Answer:
Workdone is 5734.06Nm.
Explanation:
<u>Given the following data;</u>
Force applied = 125N
Angle = 35°
Distance = 56m
To find the workdone by the lawnmower, we would first of all find the horizontal component of the force applied.
Where;
- Fx represents the horizontal force.
- m is the mass of an object.
- g is the acceleration due to gravity.
- d is the angle of inclination (theta).
mg = weight = 125N
Substituting into the equation, we have;
Fx = 102.39N
Workdone is given by the formula;
Workdone = 5734.06Nm
<em>Therefore, the work done by the lawnmower is 5734.06Nm</em>.
Hey girl
the answer is A
your correct the atmosphere provides warmth
hope this helps
XD
PE equals KE when KE is 50%.
Like below:
E = PE + KE
E = 50 + 50
E = 100.
Remember, both KE and PE always have to add up to 100 so that is why PE is equal to KE when KE is 50% of energy.
Hope I helped. :)
Answer:
350 F to 100 F it take approx 87.33 min
Explanation:
given data
oven = 350◦F
cooling rack = 70◦F
time = 30 min
cake = 200◦F
solution
we apply here Newtons law of cooling
= -k(T-Ta)
= 
(T(t) -Ta)
= 
= -k(T-Ta)
-ky = -ky
T(t) -Ta = (To -Ta) 
T(t) = Ta+ (To -Ta)
put her value for time 30 min and T(t) = 200◦F and To =350◦F and Ta = 70◦F
so here
200 = 70 + ( 350 - 70 ) 
k = 0.025575
so here for T(t) = 100F
100 = 70 + ( 350 - 70 ) 
time = 87.33 min
so here 350 F to 100 F it take approx 87.33 min
It is the study of cognitive functions.
