Ask question

Ask question

All categories

3 years ago

7

In the electromagnetic spectrum, _ is the _ frequency color of visible light. A. green; highest B. red; lowest C. vi

olet; lowest D. blue; highest

2 answers:

MissTica3 years ago

8 0

D.) In the electromagnetic spectrum, "Blue" is the "Highest" <span>frequency color of visible light.

Hope this helps!</span>

MaRussiya [10]3 years ago

5 0

Red is the lowest because it has the shortest wavelengths

You might be interested in

Help please this is important!

bixtya [17]

Answer:

Since the ball becomes positively charged, it will repel as like charges repel.

7 0

3 years ago

In which of the fire plume structure zones do the gases accelerate upward?

I am Lyosha [343]

The zone that gases always accelerate upward is the Luminous flame zone. The fire plume is the column of hot gases, flames and smoke rising above a fire. Gases accelerate upward toward the always luminous flame zone. The luminous flame height is the distance between the base of a flame and the point at which the plume is luminous half the time and transparent half the time.

3 0

3 years ago

Five men push a stalled car with an average force of 400 N per person. Find the mass of the

timama [110]

The mass of the car is 2000 kg

Explanation:

We can solve this problem by using Newton's second law of motion, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

$\sum F = ma$

where

$\sum F$ is the net force

m is the mass

a is the acceleration

In this problem, we have:

$a=1 m/s^2$ is the acceleration of the car

Each person applies a force of 400 N, and there are five men, so the total force applied is

$\sum F = 5\cdot 400 N = 2000 N$

Therefore, the mass of the car is:

$m=\frac{\sum F}{a}=\frac{2000 N}{1 m/s^2}=2000 kg$

Learn more about Newton's second law of motion:

brainly.com/question/3820012

#LearnwithBrainly

4 0

3 years ago

A small sphere is hung by a string from the ceiling of a van. When the van is stationary, the sphere hangs vertically. However,

olganol [36]

Answer with Explanation:

We are given that

String makes an angle w.r.t vertical= $\theta=$

a.We have to derive an expression for the magnitude of the acceleration of the van in terms of the angle $\theta$ and magnitude g of the acceleration due to gravity.

According to newton's second law

$T sin\theta=ma$

$Tcos\theta=mg$

$\frac{Tsin\theta}{Tcos\theta}=\frac{ma}{mg}$

$tan\theta=\frac{a}{g}$

$a=gtan\theta$

b. $\theta=10^{\circ}$

$g=9.8 m/s^2$

$a=9.8\times tan10^{\circ}=1.73 m/s^2$

c.Velocity=Constant

We have to find the angle $\theta$

$a=0$

$0=9.8tan\theta$

$tan\theta=0$

$tan\theta=tan0$

$\theta=0^{\circ}$

3 0

3 years ago

List all the planets in the solar system and their features

Andrei [34K]

Answer:

The planets of the solar system are 8:

Mercury is the planet closest to the sun, and therefore the hottest planet in stable conditions. It has an average temperature of 160º C, but with nights of up to -170º C. It is a rocky planet, and it does not have satellites. Its period of rotation around the sun is 88 days.

Venus is also a rocky planet, but considerably larger than Mercury. It has an average temperature of 460º C, due to its enormous atmospheric pressure, thus surpassing Mercury, which is even closer to the sun. Its rotation period is 225 days, and it does not have satellites either.

The Earth, our planet, is the only one with ideal conditions for the development of life: it has a rotation of 365 days, an average temperature of 15ºC and water in sufficient abundance to allow the development of oxygen-producing vegetation.

Mars, the last rocky planet in the chain, has a rotation period of 687 days, an average temperature of -46º C and minimal amounts of water. It has 2 satellites.

Then we have the gaseous planets, which are Jupiter, Saturn, Uranus, and Neptune. These do not have a solid surface, but are composed of gases (and portions of ice due to the extremely high temperature they have, from -120ºC to -220ºC) and enormous amounts of satellites. These are the least fit for life, due to their temperature and lack of solidity.

5 0

3 years ago

Read 2 more answers