What is the temperature shown on the thermometer below?
A. 8 °F
B. 4 °F
C. –4 °F
D. –8 °F

Answer:

m=−8/3

Explanation:

Answer:

-8/3

Explanation:

Slope m= y2-y1/ x2- x1

Answer:

a) The gravitational acceleration at the surface of the Moon is g moon=1.67 m/s  

2

The ratio of weights (for a given mass ) is the ratio of g-values, so  

W  

moon

​  

=(100N)(1.67/9.8)=17N.

(b) For the force on that  object caused by Earth's gravity to equal 17 N, then the free fall acceleration at its location must be  

ag

​  =1.67m/s  

2

 . Thus , .

ag

= r  2

Gm

E

⇒  

a  

g

Gm  

=1.5×10  

7

m

So the object would need to be a distance of r/R  

E

​  

=2.4 "radii" from Earth's center.

Answer:

20 N

Explanation:

Consider that earth's acceleration due to gravity is approximately 9.81 m/s^2. Also consider that the moon's acceleration due to gravity is about 1.62 m/s^2. Using these two values, we can easily find the weight of the object on the moon, given that the object weighs 100 N, and that F = ma.

First, let's break it up.

100/9.81 =

10.193679918450561 kg

10.193679918450561*1.62 =

16.513761467889908 N

≈ 20 N (with one significant digit, since that is the least amount of sig figs in the problem)

Answer:

There the first one

Explanation:

Answer:

The temperatures

Explanation:

Heat rises

Answer: P+R = Q

Explanation: upward forces = downward forces

Answer:

[tex]\boxed {\boxed {\sf A. \ 1000 \ Joules}}[/tex]

Explanation:

Kinetic energy can be found using the following formula.

[tex]E_k=\frac{1}{2}mv^2[/tex]

where m is the mass and v is the velocity.

The mass of the toy plane is 20 kilograms and the velocity is 10 meters per second.

[tex]m= 20 \ kg \\v= 10 \ m/s \\[/tex]

Substitute the values into the formula.

[tex]E_k=\frac{1}{2}(20 \ kg) (10 \ m/s)^2[/tex]

Solve the exponent first.

[tex]E_k=\frac{1}{2} (20 \ kg) (100 \ m^2/s^2)[/tex]

Multiply the last two numbers together.

[tex]E_k= \frac{1}{2}(2000 \ kg*m^2/s^2)[/tex]

Multiply by 1/2 or divide by 2.

[tex]E_k= 1000 \ kg*m^2/s^2[/tex]

[tex]E_k= 1000 \ J[/tex]

The kinetic energy of the toy plane is 1000 Joules

Answer:

D

Explanation:

Hi there! :)

[tex]\large\boxed{38.34 m/s}[/tex]

Use the following kinematic equation to solve:

[tex]v_{f}^{2} = v_{i}^{2} + 2ad[/tex]

Where:

vf = final velocity (?)

vi = initial velocity (0 m/s, object started at rest)

a = acceleration (gravity = 9.8 m/s)

d = distance travelled (75 m)

Plug in the given values into the equation:

[tex]v_{f}^{2} = 0^{2} + 2(9.8)(75)[/tex]

Simplify:

[tex]v_{f}^{2} = 2(9.8)(75)\\\\v_{f}^{2} = 1470[/tex]

Take the square root of both sides:

[tex]v_{f} = \sqrt{1470} = 38.34 m/s[/tex]

Answer:

  the distance from point C to D is 7.75m

Explanation:

Answer:

The normal line divides the angle between the incident ray and the reflected ray into two equal angles. ... The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection

The law of reflection is the idea that when light rays strike a smooth surface, the angle of incidence and the angle of reflection are both identical. Additionally, the incident ray, the reflected ray, and the surface normal all reside in the same plane.

Reflection of light refers to the act of light rays hitting a surface and reflecting back.

The law of reflection explains how both curved and planar mirrors form images.

Learn more about reflection here:

https://brainly.com/question/28969632

#SPJ2

Answer: The pattern of the battery is wrong, the bulb is broken , the wires of the circuit is broken , the switch is not closed .

Answer:

circle the open switch on the right (it is open so the circuit is broken), the break in the wire on the left, opposite the switch (wire is broken so the circuit cannot continue) and on the left side of the bulb (bulb isn't fully connected so the circuit cannot continue). i think this is correct but my explanations may be a bit off, so just see where this takes you. hope it helps.

Answer:

is there a better picture

Answer:

0.16Hz

Explanation:

wavelength (λ) = 125 meters

speed (V) = 20 m/s

frequency (F) = ?

Recall that frequency is the number of cycles the wave complete in one

second. And its value depends on the wavelength and speed of the wave.

So, apply the formula V = F λ

Make F the subject formula

F = V / λ

F = 20 m/s / 125 meters

F = 0.16 Hz

Answer:

304.9m

Explanation:

Given

Velocity = 300m/s

Tim = 1sec

Required

Horizontal distance S

Using the formula

S= ut+1/2gt²

S = 300(1)+1/2(9.8)(1)²

S = 300+4.9

S = 304.9m

Hence the distance travelled is 304.9m

Answer:

Speed = Distance by Time

so, 105/5

= 21 km/hr

Explanation:

hope it helps....

Answer:

p=0.01g/cm³

Explanation:

Lets find the volume

Length+Width+Height

36×24×12=10,368cm³

mass is 104g

Formula of finding density is

p=m/v

Lets substitute the known variables

p=104g/10368cm³

p=0.01g/cm³

Second class lever has mechanical advantage always more than one as load is in between fulcrum and effort making the effort arm longer than the load arm. It multiplies force. ... It does not multiply force but changes the direction of force.

5 sets

Explanation:

Matches are played best of five sets. The first four sets are played to 25 points, with the final set being played to 15 points. A team must win a set by two points. There is no ceiling, so a set continues until one of the teams gains a two-point advantage. Previously, all sets were to 15 points, with the first four sets having a ceiling of 17 and the final set requiring at least a two-point winning advantage.

Answer:

Net external force is the sum of all of the forcing acting on an object. Just because there are forces acting on an object doesn't necessarily mean that there is a net external force; forces that are equal in magnitude but acting in opposite directions can cancel one another out.

Explanation:

Answer:

Kk so your answers are: 1 is The sum of all the forces acting on an object is the net force or resultant force. If all the forces cancel out, the resultant force is zero, else, the unbalanced force will cause acceleration of the object. Force is a vector and hence has both a direction and magnitude. 2 is Depending on the magnitude and direction of the force, it can cause an object to move, stop or change direction. For example, in baseball a pitcher throws the ball with a certain speed towards the hitter, who hits it, thus applying a force to it.  and 3 is friction.

Explanation:

Make sure to mark as brainliest, and a tip: Try to reword these so its not copy and pasting from the internet!

Answer:

40 229/5000

Explanation:

   </3 PureBeauty

Answer:

0.000000004004584

Explanation:

Answer:    C. X-Rays

Explanation:

Answer:

C I am pretty sure

Explanation:

Image below

Answer:

first one

Explanation:

376,425 is the biggest number in general

Answer:

the first line is true whuch is 376425>367419

Answer:

C

Explanation:

plato

Answer:

c. Salt and Water

Explanation:

Answer:b

Explanation:

Answer:

4000 turns

Explanation:

The formula to apply is ;

Voltage in secondary coil/ Voltage in primary coil = Turns on secondary coil/Turns in primary coil

Vs/Vp =Ns/Np

Given that;

Ns=200

Vp=380 V

Vs=19 V

Applying the formula as;

Vs/Vp = Ns/Np

19/380 = 200/Np

1/20 =200/Np

Np = 200/0.05

Np= 4000 turns