Answer:
28000 newtons
Explanation:
Force = mass x acceleration
= 7000 * 4
=28000
Unit for force is Newtons
Explanation:
cold,hot,warm,room tempature i dont know what you needed help with but here you go:)
Answer:
34 m/s
Explanation:
Potential energy at top = kinetic energy at bottom + work done by friction
PE = KE + W
mgh = ½ mv² + Fd
mg (d sin θ) = ½ mv² + Fd
Solving for v:
½ mv² = mg (d sin θ) − Fd
mv² = 2mg (d sin θ) − 2Fd
v² = 2g (d sin θ) − 2Fd/m
v = √(2g (d sin θ) − 2Fd/m)
Given g = 9.8 m/s², d = 150 m, θ = 28°, F = 50 N, and m = 65 kg:
v = √(2 (9.8 m/s²) (150 m sin 28°) − 2 (50 N) (150 m) / (65 kg))
v = 33.9 m/s
Rounded to two significant figures, her velocity at the bottom of the hill is 34 m/s.
By definition, the kinetic energy is given by:
Where,
m: mass of the object
v: object speed
Substituting values we have:
Doing the calculations we have
The energy unit is joules
Answer:
the canoe's kinetic energy is:
Answer:
Ya right...
So water does have to do with physics...
i don't understand the question...
uhhhh
umm
* *
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ya umm...
ok ile see you...
later...
bye