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geniusboy [140]
4 years ago
5

Where on the physical activity pyramid do sedentary activities belong?

Physics
1 answer:
chubhunter [2.5K]4 years ago
8 0

Answer:A

Explanation:

i just did the test

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Calculating If the average or normal temperature decrease with altitude in the troposphere is 6.5°C/km, calculate the approximat
grigory [225]

Answer:

- The temperature of 10°C will be experienced at an altitude of 2.52 km

- The temperature of 0°C will be experienced at an altitude of 4.15 km

Explanation:

Lapse Rate = -6.5°C/km of ascent.

Lapse Rate = Temperature difference/altitude difference

For the 10°C,

Temperature difference = 10 - 27 = -17°C

-6.5 = -17/(difference in altitude between the two points)

Difference in altitude = 17/6.5 = 2.52 km

For 0°C,

Temperature difference = 0 - 27 = - 27°C

-6.5 = -27/(difference in altitude between the two points)

Altitude difference = 27/6.5 = 4.15 km

5 0
3 years ago
Why does Chelsea see sparks as she removes her clothes from the clothes dryer?
Ne4ueva [31]
Static electricity!
8 0
4 years ago
Read 2 more answers
Which type of mirror would you use to cook a hot dog and why?
alexandr1967 [171]
As long as it’s a good mirror then any one of them is fine bc at the end of the day i’m getting a hot dog
8 0
3 years ago
A pure jet engine propels an aircraft at 240 m/s through air at 45 kPa and −13°C. The inlet diameter of this engine is 1.6 m, th
erica [24]
QUESTION: A pure jet engine propels and aircraft at 340 m/s through air at 45 kPa and -13C. The inlet diameter of this engine is 1.6 m, the compressor pressure ratio is 13, and the temperature at the turbine inlet is 557C. Determine the velocity at the exit of this engines nozzle and the thrust produced.

ANSWER: Due to the propulsion from the inlet diameter of this engine bring 1.6 m allows the compressor rations to radiate allowing thrust propultion above all velocitic rebisomes.
6 0
3 years ago
A paintball’s mass is 0.0032kg. A typical paintball strikes a target moving at 85.3 m/s.
vekshin1

Answer:

A)  If the paintball stops completely the magnitude of the change in the paintball’s momentum is  p=0.273kg*m/s

B) If the paintball bounces off its target and afterward moves in the opposite direction with the same speed, the change in the paintball’s momentum is  p=0.546kg*m/s

C) A paintball bouncing off your skin in the opposite direction with the same speed hurts more than a paintball exploding upon your skin because of the strength exerted is twice than if it explodes.

Explanation:

Hi

A) We use the formula of momentum p=mv, so we have p=0.0032kg*85.3m/s=0.273kg*m/s

B) We use the same formula above, then due we have a change of direction at the same speed, therefore the change in the momentum is the double so

p=2*0.0032kg*85.3m/s=0.546kg*m/s.

C) The average strength of the force an object exerts during impact is determined by the amount the object’s momentum changes. therefore

F=\frac{\Delta p}{\Delta t}, as we don't have any data about the impact time but we know momentum is twice, time does no matter and strength is twice too.

4 0
4 years ago
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