Given that,
A truck drives to a rock quarry at a speed of 20 m/s. The truck takes on a load of rocks, which doubles its mass, and leaves at the same speed of 20 m/s.
To find,
Comparison of the kinetic energy of the truck as it left the quarry with its kinetic energy on the way to the quarry.
Solution,
Kinetic energy of an object is given by:
[tex]K=\dfrac{1}{2}mv^2[/tex]
m is the mass of the truck
[tex]K=\dfrac{1}{2}m\times (20)^2\\\\K=200m\ J[/tex]
If mass is doubled and speed is same i.e. 20 m/s, neew kinetic energy is given by :
[tex]K=\dfrac{1}{2}\times (2m)\times 20^2\\\\K=400m\ J[/tex]
It can be seen that when mass of truck is doubled, its kinetic energy gets doubled.
Describe what an aye of a storm does and look like?
Answer:
They are found at the center and are between 20-50km in diameter. ... The coriolis force deflects the wind slightly away from the center, causing the wind to rotate around the center of the hurricane (the eye wall), leaving the exact center (the eye) calm.
Explanation:
I used google!
Hope this helps :D
I NEED HELP WITH THIS PHYSICS QUESTION
Answer:
im saying c but not sure if its right
Explanation:
which is the hottest planet
Answer:
venus
Explanation:
its the closest to the sun
could you plz vote me brainliest? thx :)
Answer:
Venus because it really close to the sun.
Explanation:
skateboarding is life
Answer: Sure
Explanation:
Drag each label to the correct location on the table. Sort the units based on the measurement system they're used in. kilometer milligram inch kelvin Fahrenheit Ounce yard SI System US Customary System
Answer:
The correction is the state of mind being for the Fahrenheit that is calculator from anarchy
Explanation:
Answer:
Si system is :kilo miligram kelvin
us system is: Fahrenheit Ounce yard inch
Explanation:
If the vector below is multiplied by 2, what will be its end point? 5 A. (-6,8) B. (6,8) C. (-6,4) D. (-3,4) SUBMIT E PREVIOUS O re to search
Answer:
A
Explanation:
When you multiply a vector by a scalar the magnitude will change but the direction will not change.
Which condition causes a hurricane to rotate?
a local storm surge
the Coriolis effect
several large waves
severe coastal flooding
Answer:
b
Explanation:
The Coriolis effect is a condition which causes a hurricane to rotate in a particular direction. Thus, the correct option is B.
What is the Coriolis effect?Hurricanes are the enormous storms which come with a rotating wind speed of about 74 miles per hour. The rotating wind that swirls across the warm water of the tropics and also comes with a terrifying force.
The Coriolis force is an inertial or the fictitious force, which acts on the objects which are in motion within a frame of reference that rotates them with respect to an inertial frame. In a reference frame, with the clockwise rotation, the force acts to the left of the motion of the object. Whereas, in one with anticlockwise or counterclockwise rotation, the force acts to the right of the object. The deflection of an object due to this Coriolis force is called as the Coriolis effect.
Therefore, the correct option is B.
Learn more about Hurricane here:
https://brainly.com/question/18950883
#SPJ6
All indicate that the universe is
A) rotating.
B) expanding.
C) shrinking.
D) at equilibrium.
Answer:
if its talking about earth then rotate I'll say
Answer:
universe is expanding
One cell performs 120 oscillations per minute, the other 240. What will be the ratio of their lengths ( I translated it sorry for mistakes)
Answer:
360²
Explanation:
hoped this helped (ejfigueroa5 had the answer thank you to ejfigueroa5)
Explain the conversion of energy in a roller coaster. Explain how energy is converted
1. Martha bought a six pack of soda on Thursday. She promised her neighbor, Mr. Jimmy, that she would save the cans for him. What are they doing to help our ecosystem?
Answer:
They are helping the ecosystem
Explanation:
They are helping the ecosystem by making sure those cans are going to be either
a) recycled properly
b) up-cycled for a project of some sorts
if you weigh 637 N on Earth's surface, how much would you weigh on the planet Mars?
Answer:
To get your answer multiply 637N by 10N/kg to get 6370kg
The mass of an object weighing 637 N on earth is 65 kg. The acceleration due to gravity on mars is 3.72 m/s². Then its weight on mars is 241.8 N.
What is gravitational force?The gravitational force is the force by which an object attracts other object into its center of mass. Earth attracts every objects into its surface and that is why we are all standing on the ground and experience a weight.
The acceleration due to gravity is the acceleration to the downward motion by gravitational force for an object. The weight of an object is the sum of its mass and acceleration due to gravity of the planet in which the object is placed.
The acceleration due to gravity of earth = 9.8 m/s²
then mass of person weighing 637 N = 637 N/9.8 m/s² = 65 Kg
acceleration due to gravity of mars = 3.72 m/s²
then weight of the mass 65 kg = 65 kg × 3.72 m/s² = 241.8 N.
Therefore, the person will weight 241.8 N at mars.
Find more on gravitational force:
https://brainly.com/question/12528243
#SPJ3
a toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship between the sizes of the model and the actual car?
a. 50:1
b. 1:50
c. 5:1
d. 1:5
Answer:
its b) 1:50 just did it on apex
Explanation:
a toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship between the sizes of the model and the actual car?
a. 50:1
b. 1:50 this is right
c. 5:1
d. 1:5
Suppose Person A runs off the edge of the cliff at 2 m/s and Person B runs off the edge at 1 m/s. Which will hit the ground farther from the base of the cliff?
Answer:
Person A will hit a distance fatherExplanation:
Based on the fact that the velocity of person A is more than that of person B, that is from the question, person A has a velocity of 2m/s and person B has a velocity of 1m/s, this clearly shows that person A has the tendency to hit a distance farther from the cliff than person B.
Please help
How would you explain 2 m/s/s [1
(1 Point)
Enter your answer
what is food poisoning ?
Answer:
salmonella and from eating raw food
Explanation:
Answer:
Food Poisoning is bad very bad. You can get the following sicknesses: cramping, nausea, vomiting, or diarrhea. It usually comes from food that has a lot of Germs in it, Bacteria, Viruses, etc. But it is not usually something that can kill you, just go to your doctor and they might give you medicine to stop the Poisoning.
Which waves can travel through space?
OElectromagnetic waves only
OMechanical waves only
OElectromagnetic and mechanical waves O Longitudinal and electromagnetic waves
Answer:
A. electromagnetic waves only
Explanation:
brainliest please? :))
a) Electromagnetic waves only can travel through space
What are electromagnetic waves?Electromagnetic waves are the waves that are propagated by simultaneous period variation of electric and magnetic filed intensity .
Longitudinal wave and mechanical wave require a particular medium to travel , and in vacuum their is no medium that helps the waves to propagate because their is no particle present in vacuum . Hence , their is absence of any matter , wave cannot travel through it .
Because electromagnetic waves do not need molecule to travel and electromagnetic wave are transverse waves and they have oscillating magnetic and electric field thus do not need a medium to travel .
hence , correct option a) Electromagnetic waves only
learn more about electromagnetic waves
https://brainly.com/question/3101711?referrer=searchResults
#SPJ3
_____ is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force
By definition, Weight is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force.
Weight is called the action exerted by the force of gravity on the body.
The mass (amount of matter that a body contains) of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.
The formula that allows you to calculate the weight of any body is:
P = m×g
where:
P = weight measured in N. m = mass measured in kg. g = acceleration of gravity measured in m/s². The acceleration of gravity g is the same for all objects that fall due to gravitational attraction, regardless of their size or composition. For example, as an approximate value on Earth, g = 9.8 m/s².
Then, the weight of an object is the force of gravity on the object, that is, the weight will vary according to the force of gravity that acts on it. So the correct answer is:
Weight is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force.
Learn more:
brainly.com/question/15566515?referrer=searchResults brainly.com/question/15271930?referrer=searchResults brainly.com/question/4735812?referrer=searchResultsThe steam coming off the pot of boiling water is an example of_______________
Answer: water vapor
Explanstion
When water is heated it evaporates, which means it turns into water vapor and expands. At 100℃ it boils, thus rapidly evaporating. And at boiling point, the invisible gas of steam is created. ... Those drops of water are called condensation
The steam coming off the pot of boiling water is an example of Water vapor.
Water Vapor
Water throughout a gaseous condition, particularly in the atmosphere and at temperatures lower than the boiling point. This same basic ingredient for cloud as well as rain production is water vapor throughout the environment.
It also serves to maintain the Earth's temperature by reflecting and dispersing solar energy as well as absorbing infrared heat from this same Planet.
Thus the response above is correct.
Find out more information about water vapor here:
https://brainly.com/question/7905023
Pick a correct term to fill in the blank: kgm/s2, pounds, tons, kg
One Newton equals 0.225
Answer:
Pounds
Explanation:
Neutrons have ____
- have positive charge
- are found in the nucleus
- orbit outside the atom
- are a special type of element
Answer:
opt B is correct
Explanation:
If the spring constant is doubled, what value does the period have for a mass on a spring?
if spring constant is doubled, the mass on spring will be doubled as well. according to this formula, F=ke
k stands for spring constant and e stands for the length extended
What is step one of a star called?
Answer: Stage 1- Stars are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity. This image shows the Orion Nebula or M42 . Stage 2 - A region of condensing matter will begin to heat up and start to glow forming Protostars.
Explanation:
When water (H2O) freezes into ice, some of the properties have changed. What stays the same? identity of the H2O energy of the H2O arrangement of the H2O property of the H2O
Answer:
A: The identity of H2O
Explanation:
Got answer right on EDG
Answer:
identity of the H2O
Explanation:
identity of the H2O
A cat walks 1.5km South and then 2.4km East. What is the total displacement of the cat?
If toy weighs 19.6 newtons on earth, what is the mass of the toy?
Answer:
About 199.864 grams, 4.406 lbs.
Explanation:
Complete the sentence to explain when waves interact.
Waves interact with
and other
Please help me! I will give brainiest answer to whoever responds within 5 minutes
Answer:
Waves interact with objects and other waves.
Explanation:
Which set of experimental conditions would result in the least amount of force on the egg?
a. Drop a small egg from a height of 1 meter into a box of foam.
b. Drop a jumbo egg from a height of 10 meters on a hard surface.
c. Drop a jumbo egg from a height of 10 meters onto 1-inch foam.
d. Drop a small egg from a height of 1 meter into a box of foam.
e. Drop a small egg from a height of 10 meter into a box of foam.
A because it is the it is the it is the it is there ither iee dd
could you guys tell me whether the photo represents a balanced or unbalanced equation
Answer:
that is preatty balenced m8
Explanation:
A rock is thrown downwards from the edge of the Grand Canyon. With what velocity will it hit the donkey-riding tourist who is 40 m below?