Please help if u can thanksss

My older brother received a ticket for driving 80 mph this information describes my brothers?

Sauron [17]

Answer: 80mph describe the speed of your brother

5 0

3 years ago

Which of of the following is a physical change ice melting into a puddle of water,Leaves changing color in fall, Or baking a cak

Tom [10]

Answer:

ice melting

Explanation:

Because once it melts you can change it back to ice.

4 0

4 years ago

(Fiqure 1) shows the velocity-versus-time graphs for two objects A and B the motion of the ohiecds Zach savs The aranh could rep

olchik [2.2K]

Answer:

a.neither of them is correct

b. Zach's statement is not correct, since do not know where the objects started and can't be sure if they pass each other.

c. Victoria's statement is not correct as the objects have the opposite accelerations, however free-falling objects should have the same downward acceleration

Explanation:

Fiqure 1) shows the velocity-versus-time graphs for two objects A and B the motion of the ohiecds Zach savs The aranh could represent two cars Zach traveling in opposite directions that pass each other." Victoria says, "No, I think they could be R cally from a bridge, rock A is thrown upward Victoria downward

ans :neither of them is correct

Previous Answers Submit VCorrect Figure 1 of 1

Part B V,

Why is Zach's statement wrong? Check all that apply

. A Zach's statement is not correct, since the objects move in the same direction for some time interval.

Ans: Zach's statement is not correct, since do not know where the objects started and can't be sure if they pass each other.

Previous Answers Request Answer Submit x Incorrect;

Try Again

Part C

Why is Victoria's statement wrong? Check all that apply Victoria's statement is not correct as the objects both should have been thrown either upward or downward

Answer:. Victoria's statement is not correct as the objects have the opposite accelerations, however free-falling objects should have the same downward acceleration gGraph

My explanation further from the graph will be that there are opposite bodies, one is accelerating with time , why the other is decelerating with time.

6 0

4 years ago

Sunlight is observed to focus at a point 18. 5 cm behind a lens. what kind of lens is it? b. what is the focal length of the len

topjm [15]

Sunlight focuses at a point 18.5 cm behind the lens. As daylight comes from an indefinite distance, so it is a real image. The lenses that will focus on the parallel rays behind the lens are converging lenses.

What is a converging lens?

A converging lens causes parallel rays of light to come to a focal point.
A convex lens is a converging lens.
A converging lens has a positive focal length.
A converging lens forms a real or virtual image of a real object.

For more information, please visit: brainly.com/question/3359672?referrer=searchResults

#SPJ4

5 0

2 years ago

An orbiting satellite can become charged by the photoelectric effect when sunlight ejects electrons from its outer surface. Sate

Rufina [12.5K]

Answer:

the longest wavelength of incident sunlight that can eject an electron from the platinum is 233 nm

Explanation:

Given data

Φ = 5.32 eV

to find out

the longest wavelength

solution

we know that

hf = k(maximum) +Ф ...............1

here we consider k(maximum ) will be zero because photon wavelength max when low photon energy

so hf = 0

and hc/ λ = +Ф

so λ = hc/Ф ................2

now put value hc = 1240 ev nm and Φ = 5.32 eV

so hc = 1240 / 5.32

hc = 233 nm

the longest wavelength of incident sunlight that can eject an electron from the platinum is 233 nm

8 0

3 years ago