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Alja [10]
3 years ago
8

An object 4cm high is placed 15 cm from a convex lens of focal length 18cm. Draw a ray diagram and find the position, size, and

nature of the image
Physics
1 answer:
Nataly [62]3 years ago
3 0

Answer:

what I don't no really????

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jack peddles a stationary bicycle. the pedals of the bicycle are attached to a 1000 turn coil of area 0.10 m2. the coil rotates
tatuchka [14]

The maximum voltage generated in the coil is 3.14 V.

According to the question, we are provided that a bicycle turns 1000 of the area of 0.10 m2, where the coil rotates half a revolution per second, which is placed in a uniform magnetic field of 0.01 T.

Therefore, no .of turns the coil took, N = 1000

Area of the coil, A= 0.10 m²

Frequency of the system =0.5 revolutions per second

          = 0.5 Hz

The intensity of the Magnetic  field , B =0.01 T

So the Equation we refer to for the calculating the desired  value

  E(ind) = -db/dt

                        = -d(NBAcosωt) / dt ​

                               = − NBA d(cosωt) /dt​

                               =  NBAωsinωt

if sinωt=1,

 maximum E(ind)​=  NBAω

Since we know, ω=2πf

Therefore,  (Eind)max ​=  NBA(2πf)

                                         = (1000)(0.01)(0.1)(2π)(0.5)

  (E(ind))max​=  3.14v.

the value for the voltage we got is 3.14 V

To know more about Magnetic Field brainly.com/question/23096032?referrer=searchResults.

#SPJ4

7 0
2 years ago
Assume both snowballs are thrown with the same initial speed 27.2 m/s. The first snowball is thrown at an angle of 75◦ above the
Leona [35]

Answer:

15 deg

Explanation:

Assume both snowballs are thrown with the same initial speed 27.2 m/s. The first snowball is thrown at an angle of 75◦ above the horizontal. At what angle should you throw the second snowball to make it hit the same point as the first? The acceleration of gravity is 9.8 m/s 2 . Answer in units of ◦ .

Given:

For first ball, θ1 = 75◦

initial velocity for both the balls, u = 27.2 m/s

for second ball, θ2 = ?

since distance covered by both the balls is same.

Therefore,..

R1=(u^{2} sin2\alpha _{1}) /g[/tex]

the range for the first ball

the range for the second ball

R2=(u^{2} sin2\alpha _{2}) /g[/tex]

(u^{2} sin2\alpha _{2}) /g[/tex]=(u^{2} sin2\alpha _{1}) /g[/tex]

sin2\alpha _{2})=sin2\alpha _{1})

2\alpha _{2}=sin^-1(sin2\alpha _{1})

\alpha _{2}=1/2sin^-1(sin2\alpha _{1})

\alpha _{2}=

15 deg

8 0
4 years ago
What is hydroelectric power ?<br><br> Answer quickly..!
GenaCL600 [577]

\:

<u>Hydroelectric power,</u> also called hydropower is the electricity produced from generators driven by turbines that convert the potential energy of falling or fast-flowing water into mechanical energy.

7 0
3 years ago
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Find the equivalent resistance between points A and B in the drawing
densk [106]

20.o hope this helps if not I am sorry


4 0
3 years ago
A bucket filled with water feels lighter while it is inside water<br>​
ss7ja [257]
It doesn’t feel lighter it feels heavier
7 0
3 years ago
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