All categories

3 years ago

What do you notice about the three lines reflected from the convex mirror?

Physics

1 answer:

NemiM [27]3 years ago

5 0

Answer:

They are reflected back at the same angle they came in

Explanation:

When parallel light rays hit a convex mirror they reflect outwards and travel directly away from an imaginary focal point (F). Each individual ray is still reflecting at the same angle as it hits that small part of the surface.

You might be interested in

Which stage of Erik Erikson’s psychosocial theory of personality is the first one and occurs during infancy?

dangina [55]

Trust vs Mistrust

At this stage the infant is uncertain about the world they live in.

6 0

3 years ago

As an astronaut goes out into space, her mass _______________ and her weight ____________________

mel-nik [20]

Her mass stays the same and her weight changes

6 0

3 years ago

Read 2 more answers

A 19 kg solid disk of radius0.44 m is rotated about an

Vlad1618 [11]

Answer:

0.915 Nm

Explanation:

1 revolution = 2π rad

We can use the following equation of motion to find out the acceleration acting on the disk

$\omega^2 - \omega_0^2 = 2\alpha\Delta \theta$

where $\omega v = 2.5 rad/s is the final angular velocity of the disk, [tex]\omega_0$ = 0 rad/s is the initial velocity of the can when it starts from rest, $\Delta \theta$ is the angular distance traveled, $\alpha$ is the angular acceleration of the disk, which we care looking for:

$2.5^2 - 0 = 2*\alpha*2\pi$

$\alpha = \frac{2.5^2}{2*2\pi} \approx 0.5 rad/s^2$

The moment of inertia of the solid disk is:

$I = \frac{1}{2}mR^2 = \frac{1}{2}19*0.44^2 = 1.8392 kgm^2$

where m is the mass and R is the radius of the disk

The net torque applied is

$T = \alpha*I = 0.5 * 1.8392 = 0.915 Nm$

8 0

3 years ago

What have psychologists learned about perception from optical illusions ?

ruslelena [56]

Answer:

Explanation:

That an optical illusion somehow interferes with the way we see things. Even simple illusions can completely fool us. If you search out the term, you'll see all kinds of them.

Most critically we see one thing and know another to be true. But knowing the truth doesn't help us. We still see and believe the truth of the illusion.

5 0

3 years ago

Read 2 more answers

What is the velocity of a wave with a wavelength of 3.7 m and a frequency of 22.5 Hz?

ExtremeBDS [4]

Answer: 343 m/s. The sound wave has a frequency of. 436 Hz. What is the period of the wave? T = = 436 Hz. = 2.29x10-3 s. C. What is the wave's wavelength? To halve

Explanation:

8 0

3 years ago