1. The procedure used in a fetal monitor to check blood flow in the placenta and uterus during prenatal checkup in relation to the Doppler effect is called Doppler ultrasound.
2. a) To derive the formula for velocity ratio in an inclined plane, we consider a simple system where a load (L) is being raised to a height (h) on an inclined plane with angle (θ) to the horizontal.
In this system, the weight of the load (L) can be resolved into two components: one acting perpendicular to the inclined plane (mg sinθ) and the other acting parallel to the inclined plane (mg cosθ).
The effort required to lift the load can be considered as the force needed to counteract the component acting parallel to the inclined plane (mg cosθ).
Velocity ratio (VR) is defined as the ratio of the distance moved by the effort to the distance moved by the load. In this case, dE represents the distance moved by the effort and dL represents the distance moved by the load.
Using similar triangles, we can relate the height (h) and the distance moved by the effort (dE) and load (dL). The height is related to the distance moved by the effort using the sine of the angle (sinθ).
Therefore, L/sinθ = VR (Velocity ratio).
b) Given that L = 60 kg, h = 5 m, θ = 30 degrees, and efficiency (η) = 80%.
VR = L/sinθ
= 60 kg / sin(30 degrees) [Using given values]
= 60 kg / 0.5 [sin(30 degrees) = 0.5]
= 120 kg
Efficiency (η) = (VR / actual mechanical advantage) * 100
0.8 = (VR / (L / (mg cosθ))) * 100
Solving for VR:
VR = (0.8 * L * mg cosθ) / 100
= (0.8 * 60 kg * 9.8 m/s^2 * cos(30 degrees)) / 100
= 47.04 kg
The effort required would be 47.04 kg since VR represents the effort needed to counteract the component of weight acting parallel to the inclined plane.
The work done against friction in raising the load through the height of 5m can be calculated as follows:
Work = force * distance
= effort * distance moved by effort
= 47.04 kg * 5 m
= 235.2 J
1.what name of procedure is used in fetal monitor to check blood
flow in placenta and uterus during prenatal
checkup in relation to doppler effect.
2.in the inclined the velocity ratio given as L/sin 0.derive this formula
b. suppose L=60kg, h=5m, 0=30 degree. find VR,the effort ,if the inclined is 80% efficient and the work done against friction in raising the load through the height of 5m.
5 answers
describe how ultra sound is carried out when checking blood flow in fetus and scanning of vein
When checking blood flow in the fetus and scanning veins, ultrasound is commonly used. Ultrasound uses high-frequency sound waves to create images of the inside of the body.
To check the blood flow in the fetus, a Doppler ultrasound is used. This procedure involves placing a handheld device called a transducer on the mother's abdomen over the area where the blood flow is to be assessed. The transducer emits sound waves into the body, which then bounce back and are detected by the transducer. The transducer measures the change in frequency of the sound waves that occur due to the movement of blood cells. This change in frequency is known as the Doppler effect. By analyzing the Doppler shift, the direction and velocity of blood flow in the placenta and uterus can be determined.
During a vein scan, a different type of ultrasound is used. In this case, a gel is applied to the skin over the vein being examined to ensure good contact between the skin and the transducer. The transducer is then pressed against the skin and manipulated to obtain the best angle for imaging the vein. The transducer emits sound waves that pass through the skin and other tissues, bounce back off structures within the body, and are picked up by the transducer. These echoes are converted into images of the vein on a monitor. By visualizing the vein, healthcare professionals can assess its size, shape, and blood flow patterns.
Ultrasound is a non-invasive and safe procedure for checking blood flow in the fetus and scanning veins. It provides real-time imaging and requires no use of ionizing radiation. Ultrasound can provide valuable information for diagnosis and monitoring, allowing doctors to assess the health and well-being of both the fetus and the venous system in a safe and effective manner.
To check the blood flow in the fetus, a Doppler ultrasound is used. This procedure involves placing a handheld device called a transducer on the mother's abdomen over the area where the blood flow is to be assessed. The transducer emits sound waves into the body, which then bounce back and are detected by the transducer. The transducer measures the change in frequency of the sound waves that occur due to the movement of blood cells. This change in frequency is known as the Doppler effect. By analyzing the Doppler shift, the direction and velocity of blood flow in the placenta and uterus can be determined.
During a vein scan, a different type of ultrasound is used. In this case, a gel is applied to the skin over the vein being examined to ensure good contact between the skin and the transducer. The transducer is then pressed against the skin and manipulated to obtain the best angle for imaging the vein. The transducer emits sound waves that pass through the skin and other tissues, bounce back off structures within the body, and are picked up by the transducer. These echoes are converted into images of the vein on a monitor. By visualizing the vein, healthcare professionals can assess its size, shape, and blood flow patterns.
Ultrasound is a non-invasive and safe procedure for checking blood flow in the fetus and scanning veins. It provides real-time imaging and requires no use of ionizing radiation. Ultrasound can provide valuable information for diagnosis and monitoring, allowing doctors to assess the health and well-being of both the fetus and the venous system in a safe and effective manner.
covert 38.9 degree to F
To convert 38.9 degrees Celsius to Fahrenheit, you can use the following formula:
°F = (°C * 9/5) + 32
Plugging in the value for Celsius:
°F = (38.9 * 9/5) + 32
°F = (70.02) + 32
°F = 102.02
Therefore, 38.9 degrees Celsius is approximately 102.02 degrees Fahrenheit.
°F = (°C * 9/5) + 32
Plugging in the value for Celsius:
°F = (38.9 * 9/5) + 32
°F = (70.02) + 32
°F = 102.02
Therefore, 38.9 degrees Celsius is approximately 102.02 degrees Fahrenheit.