PHYSICS
MIDDLE SCHOOL

Answer:

5 kg basketball has more inertia than others.

What is inertia?According to the definition of inertia, matter has the ability to remain at rest or to move uniformly in a single direction unless applied with an external force.

For stationary or linearly moving material, mass acts as inertia of the object. Given objects are: 3 g gumball; 2 kg tennis ball; 2 g ping-pong ball; 5 kg basketball. Among these objects, the basketball has the most amount of mass. So, the basketball will have the most inertia.

Hence, the 5 kg basketball has the most inertia.

Learn more about inertia here:

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Answer: 5 kg basketball. Inertia is related to the mass of the object.

MIDDLE SCHOOL

You are instructed to remove the appendicular skeleton of a cadaver. To accomplish this goal, you would

An appendicular skeleton includes appendages to the central skeleton and the bones of the upper and lower limbs, including the girdles that attach them to the axial skeleton. The upper limbs include shoulder, arms, forearm, and hand.The appendicular skeleton is primarily concerned with the Movement.

MIDDLE SCHOOL

What is the speed of an object that is standing still?

Speed is always relative to something.

There's no such thing as "real" speed.

If the object is standing still on the table, then

its speed relative to the table is zero.

BUT . . . its speed relative to that passenger jet that's

flying over your house could be 500 miles per hour.

0 m/s (or any other units) I believe :)

COLLEGE

On topographic maps, contour lines may change in width. True or False

The Answer is True!

I have already done this question so I know it is true.

I have already done this question so I know it is true.

Answer:

The answer is true

Explanation:

MIDDLE SCHOOL

A Cessna 150 aircraft has a lift-off speed of approximately 125 km/h. What minimum constant acceleration does this require if the aircraft is to be airborne after a take-off run of 205 m? Answer in units of m/s 2 .

The minimum acceleration is

Explanation:

The motion of the Cessna is a uniformly accelerated motion, so we can use the following suvat equation:

where

v is the final velocity of the Cessna

u is the initial velocity

a is the acceleration

s is the distance covered when accelerated from u to v

Assuming the Cessna starts from rest, we have:

u = 0

The final velocity (lift-off speed) is:

While the maximum distance that the aircraft can cover is:

s = 205 m

Therefore, the minimum acceleration that the Cessna should have is:

Learn more about acceleration:

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