11. How much work is required to increase the kinetic energy of an object from 600 J to 1800
J?
a) 1200 J
b) 2400 J
c) 3 J

Answer:

2850000J

Explanation:

Given parameters:

Weight of diver = 950N

Altitude  = 3000N

Unknown:

Total work done by the sky diver = ?

Solution:

To solve this problem, we use the expression:

        Work done  = Weight x height

Now insert the parameters:

        Work done  = 950 x 3000  = 2850000J

Answer: P+R = Q

Explanation: upward forces = downward forces

Answer:

B. sugar + oxygen → carbon dioxide + water + energy

Explanation:

Energy is that which sustains living organisms, so as to perform various activities. One of the processes by which living organisms produce energy is by respiration.

Respiration involves the breathing-in of oxygen and breathing-out of carbon dioxide as a waste. The oxygen helps in breaking down molecules of carbohydrates e.g sugar in the system of living organisms into energy, carbon dioxide and water.

This process is well represented by the equation in option B.

The reaction which correctly represents the cellular respiration process is sugar + oxygen → carbon dioxide + water + energy.

Cellular respiration involves the conversion of chemical energy from food

into ATP which is needed for the cell's daily activities.

This process is done in the presence of oxygen to form products such as:

Read more about Cellular respiration here https://brainly.com/question/425991

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:

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

Answer:

m=−8/3

Explanation:

Answer:

-8/3

Explanation:

Slope m= y2-y1/ x2- x1

Answer:    C. X-Rays

Explanation:

Answer:

C I am pretty sure

Explanation:

Image below

Answer:

The speed with which the skier was going is approximately 2.9906 m/s

Explanation:

The given parameters are;

The distance the skier slides before coming to rest, s = 12.4 m

The coefficient of friction between the skier and the snow, [tex]\mu _k[/tex] = 0.0368

Therefore, for conservation of energy, we have;

Initial kinetic energy = Work done by the kinetic friction force

Initial kinetic energy = 1/2·m·v²

The work done by the kinetic friction force = [tex]\mu _k[/tex]×m×g×s

Where;

m = The mass of the skier

v = The speed with which the skier was going

g = The acceleration due to gravity = 9.8 m/s²

s = The distance the skier slides before coming to rest = 12.4 m

[tex]\mu _k[/tex] = The kinematic friction = 0.0368

Therefore, for conservation of energy, we have;

1/2·m·v² = [tex]\mu _k[/tex]×m×g×s

1/2·v² = [tex]\mu _k[/tex]×g×s

v² = 2×[tex]\mu _k[/tex]×g×s  = 2 × 0.0368 × 9.8 × 12.4 = 8.943872

v = √(8.943872) ≈ 2.99063070271 ≈ 2.9906 m/s

The speed with which the skier was going = v ≈ 2.9906 m/s.

Answer:

0.174

Explanation:

Using the equation with both the minimum and where you're solving for d, (1-1/2) 675/sin(0.111), you get 174210.2 so you convert that into millimeters by moving the decimal point up 6 (the difference of nm 10^-9 and millimeters 10^-3),leaving you with 0.174.

I hope this helped!

Answer: 0.174

Explanation:

Answer: Collegiate and professional football games are 60 minutes long, divided into four quarters of 15 minutes each. In high school football, 12 minute quarters are usually played. The clock is stopped frequently, however, with the result that a typical college or professional game can exceed three hours in duration.

Explanation: You're very welcome ^^

Answer:

first one

Explanation:

376,425 is the biggest number in general

Answer:

the first line is true whuch is 376425>367419

Answer:

1) The diagram is drawn with a ruler and a pencil. Always begin by tracing its general shape that is a rectangle. - 2) The standard symbols of the different electric components are located, preferably, in the middle of each side.Jan

Explanation:

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:

is there a better picture

Answer:

Speed = Distance by Time

so, 105/5

= 21 km/hr

Explanation:

hope it helps....

Answer:

40 229/5000

Explanation:

   </3 PureBeauty

Answer:

0.000000004004584

Explanation:

Answer:

a solution

Explanation: A solution is a homogeneous mixture consisting of a solute dissolved into a solvent .

Answer: 29,050

Explanation:

If you notice this is a add and multiply problem .

All you are doing is finding the total linear momentum .

You would multiply 1,300 x 6= 7800

Then you would also multiply 850 x25=29050

You would add both of them (7800+21250)

And your final answer would be 29050kg •m/s

Answer:

C

Explanation:

plato

Answer:

c. Salt and Water

Explanation:

Answer:

For a longitudinal wave, such as a sound wave, amplitude is measured by the maximum displacement of a particle from its position of equilibrium. When the amplitude of a wave steadily decreases because its energy is being lost, it is said to be damped. So, a sound wave 's amplitude decreases as it moves through a medium.

Explanation:

Answer:

D

Explanation:

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:

Explanation:

Velocity or speed (v) = 65 m/s

Frequency (F) = 13 Hz

Wavelength (λ) = ?

We know

V = λ * f

65 = λ * 13

λ = 65 / 13

Therefore Wavelength (λ) = 5 meters

Hope it will help :)

The wavelength of the wave is 5 m.

The given parameters;

velocity of the wave, v = 65 m/s

frequency of the wave, f = 13 Hz

The wavelength of the wave is calculated as follows;

v = fλ

where;

The wavelength of the wave is calculated by substituting the given parameters;

[tex]\lambda = \frac{v}{f} \\\\\lambda = \frac{65}{13} \\\\\lambda = 5 \ m[/tex]

Thus, the wavelength of the wave is 5 m.

Learn more here: https://brainly.com/question/4386945

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:b

Explanation: