Answer:
the 2nd one, no atmosphere to see through
Explanation:
it doesnt really need an explanation its like using a telescope to see something inside of fog versus with no fog
Answer:
141.13636 kg
Explanation:
= Mass of plane =
= Maximum mass that the baggage compartment can hold
= Mass of person = 75 kg
= Distance between pilot and center of gravity
= Distance between baggage and center of gravity
= Distance between center of gravity with pilot and without pilot
As moment of the system is conserved we have the relation
The maximum mass that the baggage compartment can hold is 141.13636 kg
African American, Native American, and asian
The speed of the sport car at the time of impact is 6.61 m/s.
<h3>What is the frictional force of the two cars?</h3>
Frictional force of the two cars = coefficient of kinetic frictin × mass × acceleration of gravity
= 0.8 × (2500+940) × 9.8
= 26970N
<h3>What is the acceleration of the skidded cars?</h3>
- As per Newton's second law of motion, force = mass × acceleration
- Acceleration= force / mass
= 26,970/3440
= 7.8 m/s²
<h3>What is the velocity of the sport car at the time of impact?</h3>
- As per Newton's equation of motion, V² - U² = 2aS
- Here, V = 0 m/s, a= -7.8 m/s², S= 2.8 m
- So, 0²-U²= 2×(-7.8)×2.8
=> U = √43.68
= 6.61 m/s
Thus, we can conclude that the speed of the sport car at the time of impact is 6.61 m/s.
Learn more about the Newton's equation of motion here:
brainly.com/question/8898885
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Answer:
<em>a) Mechanical advantage is 0.2</em>
<em>b) maximum obtainable mechanical advantage is 1</em>
<em></em>
Explanation:
The opening of the door is only possible when a force is used to push the door, by generating a torque on the door around the hinge.
Since the door is 75 cm wide, torque generated will be the product of the force applied and the width of the door.
torque = F x 75 = 75F
If the door was pushed at point on the door 15 cm from the hinges, the torque that will be generated will be
torque = F x 15 = 15F
a)The mechanical advantage MA is therefore
MA = 15/75 = 0.2
b) <em>The best mechanical advantage that can be obtained from when you simply push it open is 1</em>
From the case above, if we assume we push it at its maximum width from the hinge, then
MA = 75/75 = 1