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Marina CMI [18]
4 years ago
15

In order for exercise to be effective, it must substantially increase heart rate. True False

Physics
2 answers:
jek_recluse [69]4 years ago
8 0

Actually the answer was False, I just took the test. This was the only one I missed.

sweet [91]4 years ago
6 0
The answer is true. I just did it.

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An auditorium measures 35.0 m x 30.0 m x 5.0 m. The density of air is 1.20 kg/m^3. (a) What is the volume of the room in cubic f
Ksenya-84 [330]

Answer:

(a) 1852259 ft^3 (b) 489085.47 pound

Explanation:

We have given auditorium measures 35 m×30 m×5 m

We know that 1 meter = 3.28 feet

So the measure of auditorium = 35×3.28 feet ×30×3.28 feet× 5×3.28 feet

(a) So the volume of the auditorium =35\times 3.28\times 30\times 3.28\times 5\times 3.28=185259.648ft^3

Density is given as d=1.20kg/m^3  

(b) weight of air  = volume × density =185259.648\times 1.2=222311.577kg

We know that 1 kg = 2.20 pound

So 222311.577 kg =222311.577×2.20=489085.47 pound

5 0
4 years ago
a father and his son are racing down a mountain. if they're traveling at the same velocity who has more kinetic energy​
lakkis [162]

Answer:

I think it's the son

Explanation:

bcs he might love it

8 0
3 years ago
What do they need to do to determine what time period Eocene belongs to on the geologic time scale​
Norma-Jean [14]

They need to scan a chart on the internet and you know when you find it.

7 0
3 years ago
Read 2 more answers
What fraction of the space within the atom is occupied by the nucleus?
ValentinkaMS [17]

Answer:

Approximately 6.8 x 10⁻¹⁵

Explanation:

To be able to get this fraction, there are some things we need to know.

1. The radius of nucleus = 1.0 x 10⁻¹³ cm

2. The radius of hydrogen atom = 52.9 pm

3. Volume of sphere = V1/V2 = (R1/R2)^3

4. 1 picometer (pm) = 10^-10 cm

CHECK ATTACHMENT FOR Step by step solution to the answer

3 0
3 years ago
Particles q1, q2, and q3 are in a straight line. Particles q1 = -28.1 μC, q2 = +25.5 μC, and q3 = -47.9 μC. Particles q1 and q2
Arturiano [62]

Answer:-88.4

Explanation:

3 0
3 years ago
Read 2 more answers
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