♥ Centripetal force formula ⇒ mv^2/r
♥ Let's solve:
⇒1200/200=v^2/25
⇒1200*25/200=v^2
⇒v^2=150
⇒v=SQRT(150)
⇒=12.2
Keep in mind anything right after the carrot sign is considered a "exponent" or "to the power of."
<span>♥ Maximum speed it can go is 12m/s.</span>
(1) The image of an object placed further from the lens than the focal point will be upside down and smaller than the object.
(2) When light rays reflect, they bounce back.
(3) Images formed by a concave lens will look magnified.
(4) When light rays enter a different medium, they bend.
<h3>
1.0 Object placed further from the lens than the focal point</h3>
The image of an object placed further from the lens than the focal point will be diminished and inverted.
Thus, the correct answer will be "upside down and smaller than the object".
<h3>2.0 What is reflection of light?</h3>
The ability of light to bounce back when it strike a hard surface is known as refection.
<h3>3.0 Image formed by concave lens</h3>
A concave lens is diverging lens is usually virtual, erect and magnified.
<h3>4.0 Refraction of light</h3>
The change in speed of light when it travels from medium to another medium is known as refraction. Refraction is also, the ability of light to bend around obstacles.
Learn more about reflection and refraction of light here: brainly.com/question/1191238
Any vector can be written as components along positive X and positive Y axes.
So vector B can be written as , where is the angle between vector and positive X axis
So vector B =
So components of vector B along X -axis =-6.74 m
along Y-axis = 16.69 m
Answer:
Explanation:
Total heat gain by the block ΔQ = 2 x 12 kJ = 24 kJ .
Gain of potential energy = mgh = 12 x 9.8 x 32 = 3.763 kJ
Decrease in kinetic energy KE = 1/2 x 12 ( 40² - 7² )
= 9.306 kJ
increase in internal energy ΔE = 70 kJ
ΔQ = ΔE + PE - KE + W , W is work done by the gas
Putting the values
24 = 70 + 3.763 - 9.306 + W
W = - 40.457 kJ .
Since W is negative that means work is done on the system .
is our feeling depend or electrostatic force
no our feelings doesn't depends on electrostatic force