My chest hurtsneed a doctor

Physics

2 answers:

Arturiano [62]3 years ago

5 0

Answer:

Call 911 if you have any of these symptoms along with chest pain:
-A sudden feeling of pressure
-squeezing
-tightness
-crushing under your breastbone
-Chest pain that spreads to your jaw, left arm, or back.
-Sudden, sharp chest pain with shortness of breath, especially after a long period of inactivity.

Explanation:

Have a great rest of your day
#TheWizzer

uranmaximum [27]3 years ago

3 0

Go to the hospital.

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Oil explorers set off explosives to make loud sounds, then listen for the echoes from underground oil deposits. Geologists suspe

Elenna [48]

Answer:

dg= 942m

Explanation:

given the depth of the granite Us dg = 500m

time between the explosion t = 0.99s

the speed of sound in granite is Vg = 6000m/s

First of all calculate the time it takes the sound waves to travel down through the lake

Vw = dw/t1

t1 = dw/Vw

t1 = 500/1480

t1 = 0.338s.

Let dg be the depth of the granite basin, so the time it takes for the sound to travel down through the granite is t2 = dg/6000m/s......equation(1)

So the total time it takes to travel down to the oil surface will be

t1/2 = t1 + t2

t1/2= 0.338 + dg/6000.

since the reflection on the oil does not change the speed of sound, the sound will take travelling upto the surface the same time it takes to reach the oil

so; t = 2 t1/2

t1/2 = t/2 = 0.99s/2 = 0.495

Now insert into the values of t1/2 into the equation (1) and solve for dg;

we get 0.495 = 0.338 + dg/6000

dg = (0.495 - 0.338) x 6000

dg = 942m.

3 0

3 years ago

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A 14000N car traveling at 25m/s rounds a curve of radius 200m. Find the following: a. The centripetal acceleration of the car.

tamaranim1 [39]

Answer: