Ask question

Ask question

All categories

stepladder [879]

2 years ago

10

There is a constriction in a clinical thermometer give reasons

1 answer:

Marianna [84]2 years ago

5 0

There is a constriction made in a clinical thermometers.
As constriction stops the mercury inside the thermometer to drop back towards the bulb of thermometer.
So there is constriction used in clinical thermometers to prevent usage of alcohol or mercury into bulb

You might be interested in

Which vector best represents the net force acting on the +3 C charge

adelina 88 [10]

Vector ' W ' best and there ya go

7 0

3 years ago

Michelle recently started selling her invention: A bed that looks like it floats in mid-air. The bed is actually suspended by ma

Tamiku [17]

Answer:

Explanation:

designer

illusionist

engineer

entrepreneur

salesperson

human

inventor

8 0

2 years ago

Which of the following is equal to 1W?<br><br>A.1 J<br>B.1 J/s<br>C.1 J·s<br>D.1 N·m

Ray Of Light [21]

B. Extra text to get to 20 characters.

7 0

2 years ago

Maria formed when asteroids punctured the moon’s surface, allowing magma to bleed out and create _____.

alekssr [168]

Extensive lava flows

4 0

2 years ago

Read 2 more answers

The gravitational force,F, on a rocket at a distance,r, from the center of the earth isgiven byF=kr2wherek= 1013N·km2. (Newton·k

Brrunno [24]

Answer:

The gravitational force changing velocity is

$\frac{dF}{dt}=-8\frac{N}{s}$

Explanation:

The expression for the gravitational force is

$F=\frac{k}{r^{2}}\\\\k=10x10^{13} N*km^{2}\\\\r=10x10^{4} km\\\\V=0.4 \frac{km}{s}$

Differentiate the above equation

$\frac{dF}{dt}=\frac{k}{r^{2}}\\\frac{dF}{dt}=k*r^{-2}\\\frac{dF}{dt}=-2*k*r^{-3} \frac{dr}{dt}\\\frac{dF}{dt}=\frac{-2k}{r^{3}}\frac{dr}{dt}$

The velocity is the distance in at time so

$V=\frac{dr}{dt}=0.4 \frac{km}{s}$

$\frac{dF}{dt}=\frac{-2*k}{r^{3}}*0.4\\\frac{dF}{dt}=\frac{-8*10x^{13}N*km^{2} }{(10x10^{4}) ^{3}} \\\frac{dF}{dt}=\frac{-8x10^{12} }{1x10^{12}}$

$\frac{dF}{dt}=-8\frac{N}{s}$

8 0

3 years ago