Answer:
<em>The vertical acceleration is -9.81 m/s^2</em>
Explanation:
When a body is projected, the body experiences an acceleration in the vertical axis that is proportional to the acceleration due to gravity of the earth, which is equal to 9.81 m/s^2. In this case, the acceleration acts to stop the vertical motion of the paper plane, and hence is a deceleration, which explains the negative vertical acceleration.
Answer:
The answer is False.
Explanation:
The structure of the body, comprising of bones and other connective tissues, which ensures and underpins the body tissues and inner organs. The human skeleton contains 206 bones, six of which are the modest bones of the center ear that work in hearing.The grown-up human skeletal framework comprises of 206 bones, and in addition a system of ligaments, tendons and ligament that associates them. The skeletal framework performs crucial capacities bolster, development, assurance, platelet generation, calcium stockpiling and endocrine direction that empower us to endure. The skeleton is the body's structure. It is made of bones, which give a firm surface to muscles to join to, with the goal that they can move. Without a skeleton, we would not have the capacity to move by any stretch of the imagination. The skeleton likewise bolsters the body and secures our interior organs.
Answer:
A longitudinal wave is a wave where the displacement of the medium is in the same direction than the propagation of the wave.
This means that as a P wave travels through the Earth, the relative motion between the p wave and the particles is near zero, as the motion of the particles is parallel to the motion of the wave.
An example of this would be the waves generated when you throw a rock in water, you can see how the water particles move along the waves in the water.
Answer:
Explanation:
The speed of light in a vacuum is approximately 3×10⁸ m/s.
In water with η=1.33:
v = (3×10⁸ m/s) / 1.33
v = 2.26×10⁸ m/s
In glass with η=1.50:
v = (3×10⁸ m/s) / 1.50
v = 2.00×10⁸ m/s
Answer:
a) Centripetal force = 80.4 N
b) Tension in the monkey's arm = 167.7 N
Explanation:
The centripetal force is the force keeping the monkey in circular motion and it is given by
F = (mv²/r)
m = mass of the monkey = 8.91 kg
v = velocity of the monkey = 2.61 m/s
r = 75.5 cm = 0.755 m
F = (8.91×2.61²)/0.755
F = 80.4 N
b) At the lowest point, there are 3 forces acting on the monkey, the tension in the arm, the monkey's weight and the centripetal force.
A quick force balance on the monkey at the lowest point gives
F = T - mg
80.4 = T - (8.91×9.8)
T = 80.4 + 87.32
T = 167.72 N