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3 years ago

What effect does mass have on a roller coaster?

1 answer:

7 0

If the roller coaster is moving, it will want to keep moving, along the direction of motion, unless something causes it to speed up or slow down. This resistance of the moving roller coaster to changing its velocity is another example of its inertia. Again, the greater the mass of the body, the more inertia it has.

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Which describes the adiabatic process? Check all that apply.

kiruha [24]

Answer:

heat is not absorbed by the system

A rapid shift occurs between gas compression and expansion.

All heat is transformed to work done by the system.

Explanation:

7 0

4 years ago

Read 2 more answers

In research in cardiology and exercise physiology, it is often important to know the mass of blood pumped by a person's heart in

frez [133]

Answer:

0.05081 kg

Explanation:

$m_1$ = Mass of blood

$v_1$ = 0.435 m/s

$m_2$ = Mass of subject and pallet = 54 kg

$v_2$ = Velocity of subject and pallet = $\dfrac{Distance}{Time}=\dfrac{6.55\times 10^{-5}}{0.16}=0.000409375\ m/s$

In this system the linear momentum is conserved so,

$m_1v_1=m_2v_2\\\Rightarrow m_1=\dfrac{m_2v_2}{v_1}\\\Rightarrow m_1=\dfrac{54\times 0.000409375}{0.435}\\\Rightarrow m_1=0.05081\ kg$

The mass of blood is 0.05081 kg

8 0

3 years ago

To increase the brightness of a desk lamp, a student replaces a 50-watt incandescent lightbulb with a 100-watt incandescent ligh

swat32

From the formula for Electric Power, P = IV, P = V²/R

So the 100W compared to the 50W.

From P = IV. From the equation there is a direct relationship between P and I. More Power P means more Current, I.

From P = V²/R. From the equation, there is an inverse relationship
between P and R. Therefore more P means less R.

So from these assertions, the answer is:

(1) less resistance and draws more current

3 0

3 years ago

Several days after snowfall , the roofs of some homes on your street have almost no snow on them, while the roofs on other homes

Alina [70]

Explanation:

This due to thermal insulation of some of the roof.

An insulator is body is a poor conductor of heat and will require high thermal energy to cause temperature changes.

A house with a roof that is thermally insulated will have poor heat conduction.
Since little heat is conducted, there wont be enough thermal energy to melt the snow.
Thermal energy is directly related to heat.
A house that is not insulated will absorb a lot of heat.
This will cause the snow to melt very fast.

Learn more:

Electrical conductors and insulators brainly.com/question/3874443

#learnwithBrainly

5 0

3 years ago

The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in

N76 [4]

Answer:

28.2 m/s

Explanation:

The range of a projectile launched from the ground is given by:

$d=\frac{v^2}{g}sin 2\theta$