Since it was stated that it must move at constant
velocity, so the only force it must overpower is the frictional force.
So the equation is:
F cos θ = Ff
F cos 36 = 65 N
F = 80.34 N
<span>So the nurse must exert 80.34 N of force</span>
Trick question? In order to have kinetic energy, an object must be moving. Therefore, in this case, kinetic energy would be 0. If it were asking about potential energy, it would be a different story.
States that particles are attracts with every other particle. wich force is directily proportional product of two masses and inversely proportional to the distance between the centers.
Answer:
(a): The bird speed after swallowing the insect is V= 4.83 m/s
(b): The impulse on the bird is I= 0.3 kg m/s
(c): The force between the bird and the insect is F= 20 N
Explanation:
ma= 0.3 kg
va= 6 m/s
mb= 0.01kg
vb= 30 m/s
(ma*va - mb*vb) / (ma+mb) = V
V= 4.83 m/s (a)
I= mb * vb
I= 0.3 kg m/s (b)
F*t= I
F= I/t
F= 20 N (c)
The density of the two pieces of rock is determined from the ratio of their masses to the pore volume of the rock.
<h3>What is density?</h3>
The density of an object is the ratio of mass to volume of the object.
Density = mass/volume
Assuming a constant pore volume of the rock = V
Density for 26.3 g = 26.3/V
Density for 58.3 g = 58.3g/V
Thus, the density of the two pieces of rock is determined from the ratio of their masses to the pore volume of the rock.
Learn more about density here: brainly.com/question/6838128
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