he pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 0.600 g is supported by a needle, the tip of which is a circle 0.250 mm in radius, what pressure is exerted on the record in N/m2?

When you ascend or descend a great deal when driving in a car, your ears "pop," which means that the pressure behind the eardrum is being equalized to that outside. If this did not happen, what would be the approximate force on an eardrum of area 0.14 cm2cm2 if a change in altitude of 1400 mm takes place?

A police car’s radar gun emits microwaves with a frequency of f1 = 9.20 GHz. The beam reflects from a speeding car, which is moving toward the police car at 36.3 m/s with respect to the police car. The speeder’s radar detector detects the microwave at a frequency f2.  Find the frequency difference f2 − f1._____kHz

If you dive underwater, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum has an area of about 70 mm2(7 × 10-5 m2), and it can sustain a force of about 7 N without rupturing. If your body had no means of balancing the extra pressure (which, in reality, it does), what would be the maximum depth you could dive withoutrupturing your eardrum?A. 0.3 m             B. 1 m            C. 3 m           D. 10 m

The pressure in Pa is equal to 18 mm Hg times 133 Pa /mm Hg = 2394 Pa. Then set 2394 = ρ g h . Solving for h we get 2394 Pa /(10 m/s2 1000 kg/m3 ) = 0.2394 m.If you were helping in a blood drive, where would you hang the bag of donated blood?   A nozzle with an area of 0.3 cm2 is attached to a garden hose with an area of 1.5 cm2. The flow rate through the nozzle is 0.12 L/s.What is the speed of the water in the hose in cm/s? (1 L= 1000 cm3) What is the speed of the water in the nozzle in cm/s? (1 L= 1000 cm3)

Your office has a 0.025 m^3 cylindrical container of drinking water. The radius of the container is about 14 cm.    When the container is full, what is the gauge pressure that the water exerts on the sides of the container halfway down from the top?   When the container is full, what is the gauge pressure that the water exerts on the sides of the container all the way down from the top?

The pressure exerted by a phonograph needle on a record is surprisingly large. If the equivalent of 1.50 g is supported by a needle, the tip of which is a circle 0.150 mm in radius, what pressure is exerted on the record in N/m2?

A 700 N lady wearing stilettos walks with one foot on the ground. Find the pressure exerted on the ground by the lady assuming her entire weight is supported by one heel. The area of the heel is 2.00 cm2. Compare this to the pressure exerted by 30,000 N elephant that walks with two feet. The total area of the feet is 560 cm2.

The aqueous humor in a person's eye is exerting a force of 0.254 N on the 1.27 cm2 area of the cornea. (a) What pressure is this in mm Hg? (b) Is this value within the normal range for pressures in the eye? (YES/NO)

QUESTION 1 When water freezes, it expands by about 9%. What would be the pressure increase inside your automobile's engine block if the water in it froze? (Bulk modulus of ice is 2 x 10° N/m2) O 1.8 x 108 N O 1.8 x 10° Pa O 222 x 1010 N O 222 x 1010 Pa