Answer:
Check the explanation
Explanation:
given
R = 1.5 cm
object distance, u = 1.1 cm
focal length of the ball, f = -R/2
= -1.5/2
= -0.75 cm
let v is the image distance
use, 1/u + 1/v = 1/f
1/v = 1/f - 1/u
1/v = 1/(-0.75) - 1/(1.1)
v = -0.446 cm <<<<<---------------Answer
magnification, m = -v/u
= -(-0.446)/1.1
= 0.405 <<<<<<<<<---------------Answer
The image is virtual
The image is upright
given
R = 1.5 cm
object distance, u = 1.1 cm
focal length of the ball, f = -R/2
= -1.5/2
= -0.75 cm
let v is the image distance
use, 1/u + 1/v = 1/f
1/v = 1/f - 1/u
1/v = 1/(-0.75) - 1/(1.1)
v = -0.446 cm <<<<<---------------Answer
magnification, m = -v/u
= -(-0.446)/1.1
= 0.405 <<<<<<<<<---------------Answer
Kindly check the diagram in the attached image below.
Answer:
Look at work
Explanation:
Θ= 4t^3+10t-40
a) In order to find ω, we need to find displacement so plug in t=2 to find Θ.
Θ= 4*8+20-40=12
use ω=Θ/t
Plug in values
ω=6 rad/s
b) In order to find α we use ω/t.
Plug in values
α=6/2= 3 rad/s^2
The wheels will start to sink due to no friction by the mud to take the grip.
<h3>What is frictional force?</h3>
When an object is moving on a rough surface, it experiences opposition. This opposing force is called the friction force.
Given is the contact force from mud on each wheel is 2000N . Assume the only other force acting on the block is that due to gravity.
The friction force is given by
f = coefficient of friction x Normal or contact force
The mud is soft and viscous. When the wheels are rotating, the car will be sinking in mud. This happens due to no grip. Car tries to get out of the mud, but instead it digs itself.
Car needs grip or frictional force to get out from the mud. There is no friction with the ground. Exactly friction makes car's wheels to displace.
Thus, the wheels of the car sink because of no friction from mud.
Learn more about friction force.
brainly.com/question/1714663
#SPJ1
In series, you just add them: R1 + R2 + R3 = Total R
