It's the second graph!
it's the only one with a negative gradient.
so the temperature of the ball will fall in water as it looses its heat.
activate windows,:-P
Work is force times
distance. <span>
The distance is 1.3 m/s x 7.6 s = 9.88 m </span>
<span>
the force is only sufficient force to overcome friction.
Assuming the table is a level table, the force to overcome friction is µ x
normal force = 0.6 x (12 kg) x 9.8 m/s^2 = 70.56 N </span>
<span>
So the work is 70.56 N x 9.88 m = 697.13 J
<span>The power is simply the work / time = 697.13 J / 7.6 s = 91.7
or 92 Watts </span></span>
Answer:
it is light
Explanation:
the arrow that says light is on the glass it must be near from tungsten
Answer:
v = 2.33 103 m / s
Explanation:
The magnetic force is
F = q v x B = i L X B
Where L is wire length and B the magnetic field
Let's calculate the value of the force
F = i L B
Now we can calculate the acceleration using Newton's second law
F = m a
a = F / m
Density is
ρ = m / V
V = π r² L
ρ = m / π r² L
m = ρ π r² L
a = I L B / (ρ π r² L)
a = 10 10³ 2.0 / (8960 π (5.1 10⁻⁴)²)
a = 2.73 10⁶ m/s²
Having the acceleration we use the kinematic equation
v² = v₀² + 2 a x
v = √ 2 ax
v = √ (2 2,723 10⁶ 1.0)
v = 2.33 103 m / s
The mass of the water with the sugar dissolved in it is 55 grams. This is because when you add the weight of the water, and the sugar that you added, it is 55.