quick someone answer this i will name you brainliest and thanks pleaseeee HELPP

Answer:

I think its C and D

Explanation:

Answer:

.

Explanation:

Answer:

Color, as far as I'm aware.

Answer:

The infrared has longer wavelengths (700 nm to 1 mm) than those of visible lights (390 nm to 700 nm). Note though that visible light is the only radiation that can be seen by the human eye. The ultraviolet is much more intense and has a shorter wavelength (400 nm to 10 nm) compared to visible light.

Explanation:

GREETINGS!

Visible light is in between UV and IR region because visible light has a wavelength ranging from 400nm to 700nm, and below 400nm is the region of UV and above 700 is the region of IR, So visible lights is in between UV and IR

To understand things more clearly you could see the electromagnetic spectrum to see which ray lies lies in what region.

HOPE THIS HELPS YOU

Answer:

D) vaporisation and sublimation

Explanation:

Answer:

D

Explanation:

vaporization and sublimation

Answer:

The value is [tex]\theta = 25 \ radian[/tex]

Explanation:

From the question we are told that

   The radius is  [tex]r = 0.30 \ m[/tex]

   The acceleration is [tex]\alpha = 2.0 \ rad/s^2[/tex]

    The time taken is [tex]t = 5.0[/tex]

Generally the angular displacement is mathematically represented as

          [tex]\theta = \frac{s}{r}[/tex]

Here s is the linear distance covered by the tire which is mathematically represented as

        [tex]s = u t + \frac{1}{2}a t^2[/tex]

Here  u is 0 given that the car started from rest and

               [tex]a = \alpha * r = 2.0 * 0.30= 0.6\ m/s^2[/tex]

So

     [tex]s = 0 + \frac{1}{2}*0.6* 5^2[/tex]

     [tex]s = 7.5 \ m[/tex]      

So

      [tex]\theta = \frac{7.5}{0.30}[/tex]

=>  [tex]\theta = 25 \ radian[/tex]

Answer: D.  decreased distances between nations

just did test on edge

i really need brainliest  plz

Answer:

Hydrogen fuel cells have a higher energy efficiency.

Hydrogen fuel cells create less pollution.

Explanation:

Answer:

15m/s2

Explanation:

Acceleration = Force / Mass

Acceleration = 15N / 1kg

Acceleration = 15m/s2

Answer:

The student's average speed for the trip to school is 4 [tex]\frac{km}{h}[/tex]

Explanation:

Speed ​​is a quantity that relates the displacement that an object makes in a given unit of time. In other words, speed is a physical quantity that expresses the relationship between the space traveled by an object, the time used for it and its direction.

Since the average speed relates the change in position to the time taken to effect said change, then:

[tex]speed=\frac{change in position}{time}[/tex]

In this case, the student travels a total distance of 2 km between his home and school and the total time spent on the trip is 30 minutes, then:

Replacing:

[tex]speed=\frac{2 km}{0.5 hours}[/tex]

Solving:

speed= 4[tex]\frac{km}{hours}[/tex]

The student's average speed for the trip to school is 4 [tex]\frac{km}{h}[/tex]

fzfgf1234556887543113

Answer:

true!! hope this helps

it has to be 20 characters ignore my extra typing

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 40 × 5

We have the final answer as

Hope this helps you

Answer:

what's the question to this

Answer:

reacts to mos metlal

Explanation:

Answer:

0.18 watt

Explanation:

The following data were obtained from the question:

Current (I) = 0.1 A

Resistance (R) = 18 ohms

Power (P) =.?

P = I²R

Where

P is the power.

I is the current in the circuit.

R is the resistance.

With the above formula, we can obtain the power in the circuit as follow:

P = 0.1² × 18

P = 0.01 × 18

P = 0.18 watt

Therefore, the power in the circuit is 0.18 watt

Answer:

IT Will be Answer choice B

Explanation:

frequency, intensity, time, and type

FITT (frequency, intensity, time, and type) is one way to remember the general guidelines for what should be included in a fitness plan.

Answer:

B. frequency, intensity, time, and type

Explanation:

^^^^

Answer:

The average speed of this hurricane is 24 kph.

Explanation:

let me know if this helps

Answer:

33.26 m/s

Explanation:

The initial velocity of the ball can be determined by;

R = v[tex]\sqrt{\frac{2H}{g} }[/tex]

Where R is the range (distance between pitcher and catcher), H is the height covered, v is the initial velocity and g is the acceleration due gravity (9.8 m/[tex]s^{2}[/tex]).

So that;

18.4 = v[tex]\sqrt{\frac{2*1.5}{9.8} }[/tex]

      = v [tex]\sqrt{\frac{3}{9.8} }[/tex]

      = v [tex]\sqrt{0.3061}[/tex]

     = 0.5533v

⇒ v = [tex]\frac{18.4}{0.5533}[/tex]

      = 33.2550

The initial velocity of the ball is 33.26 m/s.This is the velocity with which the pitcher threw the ball.

Answer:

v = 4.39968 m/s

v = 9.8418038654259 mi/h

v = 14.434645669291 ft/s

v = 15.838846732892 km/h

Explanation:

v=KE/1/2m

Answer:

v = 1.5 [m/s]

Explanation:

This problem can be solved using the definition of velocity which is the relationship between space and time.

v = x/t

where:

v = speed [m/s]

x = distance = 105 [m]

t = time = 70 [s]

v = 105/70

v = 1.5 [m/s]

Answer:time.

v = x/t

where:

v = speed [m/s]

x = distance = 105 [m]

t = time = 70 [s]

v = 105/70

v = 1.5 [m/s]

Explanation:time.

v = x/t

where:

v = speed [m/s]

x = distance = 105 [m]

t = time = 70 [s]

v = 105/70

v = 1.5 [m/s]

Answer:

Explanation:

Speed of runner Vr = 8.8 km / h

distance to be covered = 3 km

time taken by runner to reach finish line = 3 / 8.8 h = .34 s

distance covered by the bird during this period = speed of bird x time

= 17.6 x .34 = 5.98 km .

Answer:

Answer is negative -2 think about this is basically a sbrtaction problem the number starts at 12 and then it moves 14 to left which means backwards so 12-14=-2 so thats were u get -2 as your answer.

Explanation:

wanted to help people plus I am doing the quiz right now.

Answer:

Controlled variable: the height from which the ball is dropped and the floor tile on which the ball hits

Independent variable: different tennis ball brands

Dependent variable: height of bounce in centimeters

Explanation:

Scientific experiments have three major kinds of variables:

Independent variable: This is the variable that is subject to the manipulation of the experimenter. The values of this variable are determined by the experimenter. In this example, Elizabeth determines the brand of tennis ball to be tested, hence the tennis ball brand is the independent variable

Dependent variable: This variable has values which are a result of the effect of the manipulation of the independent variable. The values of the dependent variable are not under the direct control of the experimenter. They are simply the results of the experiment. Here, the height to which the ball bounces is not predetermined, hence it is the outcome or dependent variable.

Control variables; These are variables that can affect the outcome of the results of the experiment but are kept constant throughout the experiment, to rule out biases when testing the effect of the independent variable.

Answer:

289 m .

Explanation:

s = ut + 1/2 at² , u is initial velocity , t is time , a is acceleration and s is distance covered .

For t = 7 s

s = 0 + 1/2 x  2 x 7²

= 49 m

velocity after 7 s

= a x t = 2 x 7 = 14 m /s

for next 8 s , initial velocity u = 14 m /s

S = ut + 1/2 at²

= 14 x 8 + 1/2 x 4 x 8²

= 112 + 128

= 240 m

Total displacement in 7 + 8 s

= 49 + 240 = 289 m .

Answer:

The bomb will land at approximately 3.5 Km

Explanation:

Horizontal Motion

The bomb is thrown horizontally by an airplane with a speed v=50 m/s from a height h=25,000. The range or maximum horizontal distance traveled by the object can be calculated as follows:

[tex]\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}[/tex]

[tex]\displaystyle d=50\cdot\sqrt{\frac {2*25,000}{9.8}}[/tex]

[tex]\displaystyle d=3,571.43\ m[/tex]

The bomb will land at approximately 3.5 Km

Answer:

-3.6 m/s

Explanation:

first go from km/hr to m/s

so 80km/hr⇒ 22.2222 m/s

15km/hr ⇒4.16667 m/s

now use the equation for acceleration

[tex]\frac{v-v0}{t}[/tex]

(4.16667-22.2222)/5 = 18.05553/ 5 = -3.611106 m/s

with sig figs

-3.6 m/s