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Ivenika [448]
3 years ago
14

As engineers sketch, they take periodic ____ to verify that the design maintains the appropriate ratio for the given scale.

Physics
1 answer:
Karolina [17]3 years ago
6 0
They take periodic time

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A student drops a 1.5 kg rock off of a 4.0 m tall bridge. The speed of the rock just before it hits the water below is 6 m/s. Ho
olga nikolaevna [1]

Answer:

Energy due to air resistance = 31.8 Joules

Explanation:

According to the law of conservation of energy, energy can neither be created nor destroyed but can be transformed from one form to another

Kinetic Energy + Energy due to air resistance = Potential energy..........(1)

If there is no energy loss due to air resistance, potential energy = kinetic energy

mass, m = 1.5 kg

height, h = 4.0 m

speed, v = 6 m/s

Kinetic energy = 0.5 mv²

Kinetic energy = 0.5 * 1.5 * 6²

Kinetic energy = 27 Joules

Potential Energy = mgh

Potential energy = 1.5 * 9.8 * 4

Potential energy = 58.8 Joules

From equation (1)

27 + Energy due to air resistance = 58.8

Energy due to air resistance = 58.8 - 27

Energy due to air resistance = 31.8 Joules

8 0
3 years ago
Read 2 more answers
Find the force on an object which has the mass of 20kg and an acceleration of 10m/s
Elis [28]

Answer:

200 Newtons

Explanation:

20 kg x 10 m/s squared

4 0
3 years ago
What type of force are you exerting when you stomp your foot on the ground
madam [21]

Answer:

stomp???, frictional force

Explanation:

this allow ur foot to be stomp

3 0
3 years ago
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A jumbo jet has a mass of 100,000 kg. The thrust of each of its four engines is 50,000 N. What is the jet's acceleration in mete
lorasvet [3.4K]

Answer:

The acceleration is   a =2\  m/s^2

Explanation:

From the question we are told that

       The  mass of the jumbo jet is  m_j  =  100000\ kg

        The thrust is  F_k =  50000 \ N

Generally given that the jet has four engines the total thrust is  

        F_t =  4 * F_k

substituting values

       F_t  =  4 * 50000

      F_t  =  200000 \ N

Generally the acceleration of the is mathematically represented as

         a = \frac{F_t}{m}

substituting values

       a =2 \frac{N}{kg}

Now  

        N  =  kg  \cdot m/s^2

Hence

         a =2 \frac{kg * \cdot m/s^2}{kg}

        a =2\  m/s^2

5 0
3 years ago
You are in a plane and you saw a blue/green/black/pink(whatever color) marked spot on the floor of the plane. You stand up and t
Crank

Answer:

It depends if the plane is accelerating.

Explanation:

If the plane is accelerating  then the 69th power of the swag constant will allow forces to act on yo mama, and so the extreme mass exception tells us that the coin will move into another dimension of exaggerated swagger, whereas if the  plane is moving at constant speed then the coin will land on the coloured dot without external interference.

5 0
3 years ago
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