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jonny [76]
3 years ago
15

A car has a mass off 2,00 kg & is traveling at 28 meters per second. what is the car’s kinetic energy?

Physics
1 answer:
Sunny_sXe [5.5K]3 years ago
5 0

Answer:

kelechi(- Osinbajo b.d al henkel

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An automobile tire having a temperature of −1.5 ◦C (a cold tire on a cold day) is filled to a gauge pressure of 26 lb/in2 . What
Salsk061 [2.6K]

Answer:32.22\ lb/in^2

Explanation:

Given

Temperature on the hot day T_i=-1.5^{\circ} C\approx 271.5\ K

Gauge Pressure P_i=26\ lb/in^2

When Temperature rises to T_f=40^{\circ}C\approx 313\ K on a hot day then

absolute pressure  is let say P_f

Using ideal gas equation we can write

\Rightarrow \frac{PV}{T}=constant

as volume is constant therefore

\Rightarrow \frac{P}{T}=constant

\Rightarrow \frac{26+14.7}{271.5}=\frac{P_f}{313}

\Rightarrow P_f=46.92\ lb/in^2

Gauge Pressure is given by

\Rightarrow 46.92-14.7=32.22\ lb/in^2

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3 years ago
A 55.0 kg runner who weighs 539.0 N is accelerating at 3.2 m/s2. After 2
omeli [17]

Answer:

C. 352.0 kg-m/s

Explanation: Took the test on APEX

3 0
3 years ago
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Two upwards forces act: one of 34N which is 3.5m to the left of the axle, the other is 25N and is 2.6m to the right of the axle.
KiRa [710]

Answer:

See explanation below

Explanation:

In this case, you want to know if you put an object between these forces, which direction would go.

To know this, we need to calculate the moment of an object, which is defined as the product of a force and it's distance. In other words:

M = F * d   (1)

And, in order to reach equilibrium the force will exert a direction in clockwise or anticlosewise, and these moments, should be even:

anticlockwise moment = clockwise moment.

The clockwise would be the forces to the right, and anticlock would the only force to the left of the axle.

Clockwise moment = (10 * 0.8) + (25 * 2.6) = 73 Ns

Anticlockwise moment = 34 * 3.5 = 119 Ns.

As we can see, the moment in the anticlockwise is higher than the actual clockwise moment, therefore, we can assume that the object will move anticlockwise, or simply move to the left.

Hope this helps

5 0
3 years ago
A conglomerate is a rock that forms as a result of _____. . . Choices:Intense heat and pressure. Compaction and cementation. Rap
sergeinik [125]

A conglomerate is a rock that forms as a result of compaction and cementation. The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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3 years ago
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A makes an angel of 30.0 above the positive x-axis, and B makes an angel of 45.0 below the negative x-axis. A=3.00 units and B=2
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