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a car advertisement states that a certain car that Emily miller loves can accelerates from rest to 70 km/h in 7 seconds. find th

vova2212 [387]

10 km/1 second. Is this what you mean?..

7 0

4 years ago

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Twin space probes have a mass of 722 kg each. If the gravitational force between the two space probes is 8.61

IceJOKER [234]

Answer:200×10^5 meters

Explanation:

6 0

3 years ago

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The electrical resistance of an element in a platinum resistance thermometer at 100°c, 0°c and room temperature are 75.00Ω, 63.0

Dominik [7]

Answer:

16.6 °C

Explanation:

From the question given above, the following data were obtained:

Temperature at upper fixed point (Tᵤ) = 100 °C

Resistance at upper fixed point (Rᵤ) = 75 Ω

Temperature at lower fixed point (Tₗ) = 0 °C

Resistance at lower fixed point (Rₗ) = 63.00Ω

Resistance at room temperature (R) = 64.992 Ω

Room temperature (T) =?

T – Tₗ / Tᵤ – Tₗ = R – Rₗ / Rᵤ – Rₗ

T – 0 / 100 – 0 = 64.992 – 63 / 75 – 63

T / 100 = 1.992 / 12

Cross multiply

T × 12 = 100 × 1.992

T × 12 = 199.2

Divide both side by 12

T = 199.2 / 12

T = 16.6 °C

Thus, the room temperature is 16.6 °C

6 0

3 years ago

Take the following measured gauge (or gage) pressures and convert them to absolute pressures in both kPa and psi units for an am

mamaluj [8]

Answer:

Explanation:

Given

ambient Pressure =98.10 kPa

(a)gauge pressure 152 kPa

we know

Absolute pressure=gauge pressure+Vacuum Pressure

$P_{abs}$ =152+98.10=250.1 kPa or 36.27 psi

(b) $P_{gauge}$ =67.5 Torr or 8.99 kpa

as 1 Torr is 0.133 kPa

$P_{abs}$ =8.99+98.10=107.09 kPa or 15.53 psi

(c) $P_{vaccum}$ =0.1 bar or 10 kPa

Thus absolute pressure=98.10-10=88.10 kPa or 12.77 psi

as 1 kPa is equal to 0.145 psi

(d) $P_{vaccum}$ =0.84 atm or 85.113 kPa

as 1 atm is equal to 101.325 kPa

$P_{abs}$ =98.10-85.11=12.99 kPa or 1.88 psi

6 0

3 years ago

While traveling along a highway a drivers velocity is 9m/s. In 12 seconds how far has the car gone?

kupik [55]

While travelling along a highway a drivers velocity is 9 m/s. In 12 seconds, the car has gone for 108 m.

<u>Explanation:</u>

The car travelling along the highway has a uniform velocity of 9 m/s. therefore to calculate the distance travelled by the car with the uniform velocity in 12 seconds, simple formula of velocity is to be employed.

Thereby, as we know that

$\text {velocity}=\frac{\text {displacement}}{\text {time}}$

The displacement is along the highway with uniform motion, therefore, distance=displacement

Given that,

Velocity = 9 m/s

Time = 12 s

Putting the values in the formula, we get,

$9 = \frac{d}{12}$

$d=12 \times 9=108 \mathrm{m}$

Therefore, the car travels for 108 m in the 12 seconds while travelling along highway with 9 m/s of velocity.

5 0

3 years ago