243 rad is the angle through which the wheel turns during this time.
<h3>
What is torque and angular speed?</h3>
Torque is a measure of the force that can cause an object to rotate about an axis.
Angular speed is define as the measuring angle of rotation over a given amount of time.
Mathematically , ω = θ t
From the given question ,
Torque = 19.8 rad/s
ω = 23.5 rad/s
t = 11.2 s
We get the equation,
= 243 rad
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Answer:
20g
Explanation:
Given parameters:
Quantity of heat = 240calories
Initial temperature = 80°C
Final temperature = 68°C
Unknown:
Mass of water = ?
Solution;
To solve this problem, we use the expression:
Q = m c (t₂ - t₁)
Q is the quantity of heat
m is the mass
c is the specific heat = 1 cal/g°C
t₂ is the final temperature
t₁ is the initial temperature
Insert the parameters and solve;
Change in temperature is an absolute value
240 = m x 1 x (68 - 80)
m = 20g
Explanation:
<h2>the expression of x= -4t+2t^2 where x is displecement?</h2>
Answer:
Explanation:
From the question we are told that:
Focal length of lens 
Image distance 
Height of image 
Generally the lens equation is mathematically given by
Where 
is Subject
Therefore the distance between the person and the car is
Answer:
3
Explanation:
the answer is number three
