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3 years ago

Water cannot be used instead of mercury in a barometer

Physics

1 answer:

Anna007 [38]3 years ago

6 0

Answer:

no, water cannot be used in a barometer.

Explanation:

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A car travels West at 35 mph for a time period of 2.5 hours and then travels West at 55 mph for an additional time of 4.0 hours.

OlgaM077 [116]

The total distance travelled is 307.5 miles.

<h3>What is the distance covered?</h3>

We know that the distance covered can be obtained from the formula from speed since the motion all took place in the same direction.

Speed = distance/time

distance = speed * time

In the first case;

Distance = 35 mph * 2.5 hours = 87.5 miles

In the second case;

Distance = 55 mph * 4.0 hours = 220 miles

Total distance = 87.5 miles + 220 miles = 307.5 miles

Hence the total distance travelled is 307.5 miles.

Learn more about total distance:brainly.com/question/20330990

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7 0

2 years ago

(a) What is the acceleration due to gravity on the surface of the Moon?

wolverine [178]

<h2>a) Acceleration due to gravity on the surface of the Moon is 1.64 m/s²</h2><h2>b) Acceleration due to gravity on the surface of the Mars is 3.75 m/s²</h2>

Explanation:

a) Acceleration due to gravity

$g=\frac{GM}{r^2}$

G = 6.67 × 10⁻¹¹ m² kg⁻¹ s⁻²

Mass of moon, M = 7.35 × 10²² kg

Radius of moon, r = 1.73 × 10⁶ m

Substituting

$g=\frac{6.67\times 10^{-11}\times 7.35\times 10^{22}}{(1.73\times 10^{6})^2}=1.64m/s^2$

Acceleration due to gravity on the surface of the Moon is 1.64 m/s²

b) Acceleration due to gravity

$g=\frac{GM}{r^2}$

G = 6.67 × 10⁻¹¹ m² kg⁻¹ s⁻²

Mass of Mars, M = 6.418 × 10²³ kg

Radius of Mars, r = 3.38 × 10⁶ m

Substituting

$g=\frac{6.67\times 10^{-11}\times 6.418\times 10^{23}}{(3.38\times 10^{6})^2}=3.75m/s^2$

Acceleration due to gravity on the surface of the Mars is 3.75 m/s²

7 0

3 years ago

If the man has initial velocity of 0.4 m/s, acceleration is 0.343 m/s^2, a time of 5.8 seconds, and experimental final velocity

agasfer [191]

Answer:

The answer is going to be C.

Explanation:

Trust me. Im an expert in physics

6 0

4 years ago

Calculate how much work you need to move the 130N trunk to a ledge 2 n above

arsen [322]

260 joules is hopefully right.

3 0

3 years ago

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What happens when you stroke the prongs with the wire?

Xelga [282]

When you stroke the prongs with a wire, a static sound is being produced. <span>This kind of minimum-information </span>noise<span> is </span>called white noise, by analogy with white<span> light which is a uniform mixture of all the different possible colors. Hope this helps.</span>

8 0

3 years ago

Water cannot be used instead of mercury in a barometer​

Water cannot be used instead of mercury in a barometer