3 years ago

An object is placed at a distance 30cm from a thin lenses of power 4 diaptor. Discuss the nature of image

Physics

1 answer:

Alexxx [7]3 years ago

6 0

Answer:

nature of image = virtual

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A piece of transparent meterial which has one or two spherical surfaces is called

Iteru [2.4K]

Answer:

Lens

Explanation:

Lenses fit this description.

4 0

3 years ago

A wheel starts from rest and rotates with constant angular acceleration to reach an angular speed of 11.1 rad/s in 2.99 s.(a) fi

elena55 [62]

The angular acceleration of a rotating object is given by
$\alpha = \frac{\omega_f - \omega_i}{\Delta t}$
where
$\omega_f$ is the final angular speed of the object
$\omega_i$ is its initial angular speed
$\Delta t$ is the time taken to accelerate

For the wheel in our problem, $\omega_f=11.1 rad/s$ , $\omega_i = 0$ and $\Delta t=2.99 s$ , so its angular acceleration is
$\alpha= \frac{11.1 rad/s-0}{2.99 s}=3.71 rad/s^2$

8 0

3 years ago

A 5 kg ball of clay is moving with a speed of 25 m/s directly toward a 10 kg ball of clay which is at rest. The two clay balls c

Dafna11 [192]

Answer:

8.3m/s

Explanation:

Given parameters:

mass of clay ball = 5kg

Speed of clay ball = 25m/s

mass of clay ball at rest = 10kg

speed of clay ball at rest = 0m/s

Unknown:

Velocity after collision = ?

Solution:

Since the balls stick together, this is an inelastic collision:

m1v1 + m2v2 = v(m1 + m2)

5(25) + 10(0) = v (5 + 10)

125 = 15v

v = 8.3m/s

7 0

3 years ago

54 km/h is equal to

pogonyaev

$\Huge{\underline{\underline{\mathfrak{\green{AnsWeR:}}}}}$

1 km/h = 5/18 m/s

54 km/h = 54×5/18 m/s

7 0

3 years ago

yo this is due tomorrow help ya girl out : if a 2kg mass is accelerating at a rate of 2m/s^2 on a frictionless surface. how much

krok68 [10]

We Know, F = m.a
Here, m = 2 Kg
& a = 2 m/s²

Substitute for it,
F = 2*2 Kgm/s²
F = 4 Kgm/s²

8 0

3 years ago