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3 years ago

What is torque in physics ?

Physics

2 answers:

irina [24]3 years ago

8 0

Answer:

Torque is a measure of the force that can cause an object to rotate about an axis.

Paha777 [63]3 years ago

5 0

Answer:

Torque is a measure of how a force acting on an object causes that object to rotate.

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A spring with a spring constant of 400 n / M has a mass hung on it so it stretches 8 cm. calculate how much mass the spring is s

I am Lyosha [343]

Answer:

3.3kg

Explanation:

Given parameters:

Spring constant = 400N/m

Extension = 8cm = 0.08m

Unknown:

Amount of mass the spring is supporting = ?

Solution:

To solve this problem:

F = kE

F is the force

k is the spring constant

E is the extension

So;

F = 400 x 0.08 = 32N

Mass;

Force = mass x acceleration due to gravity

32 = mass x 9.8

Mass = 3.3kg

5 0

3 years ago

ListenA bicycle and its rider have a combined mass of 80. kilograms and a speed of 6.0 meters per second. What is the magnitude

Setler [38]

Answer:

a) $1.2\times 10^2\ N$

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

a = Acceleration

$v=u+at\\\Rightarrow a=\frac{v-u}{t}\\\Rightarrow a=\frac{0-6}{4}\\\Rightarrow a=-1.5\ m/s^2$

The acceleration of the bicycle and rider is -1.5 m/s²

Force

$F=ma\\\Rightarrow F=80\times -1.5\\\Rightarrow F=-120\ N=-1.2\times 10^2\ N$

The magnitude of the average force needed to bring the bicycle and its rider to a stop is $1.2\times 10^2\ N$

3 0

3 years ago

Sam is walking through the park. He hears a police car siren moving on the street coming toward him. What happens to the siren s

xeze [42]

The sound gets louder as it gets closer and when it passes is gets softer

7 0

4 years ago

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A laser with wavelength d/8 is shining light on a double slit with slit separation 0.500 mm. This results in an interference pat

ipn [44]

Answer:

0.000109375 m

Explanation:

d = Distance between grating = 0.5 mm

m = Order

$\lambda_1=\dfrac{d}{8}$

Minima relation

$m-\dfrac{1}{2}$

For fourth order minima

$dsin\theta=(4-\dfrac{1}{2})\lambda_1$

For second maxima

$dsin\theta=2\lambda_2$

From the two equations we get

$(4-\dfrac{1}{2})\lambda_1=2\lambda_2\\\Rightarrow \lambda_2=\dfrac{(4-\dfrac{1}{2})\lambda_1}{2}\\\Rightarrow \lambda_2=\dfrac{(4-\dfrac{1}{2})\dfrac{0.5\times 10^{-3}}{8}}{2}\\\Rightarrow \lambda_2=0.000109375\ m$

The wavelength is 0.000109375 m

7 0

4 years ago

Dormancy helps plants survive freezing temperatures and lack of

Paraphin [41]

Dont be rude she's asking you that the question Ugh
Oh and the answer is Liquid water even though water is already liquid ok its just water okay

7 0

3 years ago

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