A roller coaster containing four cars is accelerating at 15 m/s2 before it comes to an abrupt stop at the end of the ride. The mass of one car is 200 kg. How much force was exerted on the roller coaster to bring it to a stop?
A - 60N
B - 800N
C - 3000N
D - 12000N
Answer:
C
Explanation:
15x200=3000
Answer:
The answer is c because if you times 15 x by 200 it will equal 3000N
Explanation:
Several objects were dropped from a balcony. Using the data below, determine which statements must be true regarding the rate of force of each falling object. Neglect (ignore) air resistance. Object Mass Diameter Height of drop Tennis Ball 0.06 kg 6.6 cm 5 m Baseball 0.15 kg 74 cm 5 m Bowling Ball 5 kg 21 cm 5 m Golf Ball 0.04 kg 4.3 cm 5 m Statement 1: All balls hit the ground at the same time Statement 2: All balls hit the ground with different forces Statement 3: The bowling ball hit the ground first and the tennis and golf ball hit the ground last Statement 4: It is not possible to tell how much force each ball hit the ground with
Answer:
statement three and statement 2
Explanation
since they are weighted different, they will have more or less force (more mass=more force), also the heavier an object, the greater its acceleration while falling.
HELPPPPPPP MEEEEEEEE PLEASEEEEEEEEE! How damper works and describes how you can test this solution.
Answer:
A damper is a valve or plate that prevents or manages the airflow within a duct, chimney, VAV box, air handler, or other machinery for air handling. ... In a chimney flue, to hold the wind (and birds and other animals) out and warm or cold air in a damper seals the flue.
Explanation:
Answer:
Guide to Zone Dampers for Heating & Cooling Air Duct Controls ... We explain in detail automatic duct dampers and how they work. ... clues that help accurately diagnose a problem with your heat or heating distribution system - something that might change how you want to "fix" a problem of uneven heat in the building.
List the events in order from OLDEST to YOUNGEST
[sorry im doing this again] When does an electrically charged object attract another object?
A When one object is far away from the other
B When each object is negatively charged
C When the objects are oppositely charged
D When each object is positively charged [Edited] peps took to long just guessed:{
Answer:
THE ANSWER IS B
Explanation:
Answer:
B When each object is negatively charged.
Explanation:
Have a midnight ride.
In order to ride a bike up a hill with increasing speed—
the rider’s pedal force must be less than friction and the force of gravity
the rider’s pedal force must be equal to than friction and the force of gravity
the rider’s pedal force must be greater than friction and the force of gravity
It is impossible to ride up a hill with increasing speed.
WILL MARK BRAINLIEST
Answer:
the riders must be greater than friction and the force of gravity. uh I guessed
bonjour HELPPPP :) LOL
Which of the following is an example of an approximately neutral pH?
baking soda
lemon juice
hand soap
pure water
Answer: pure water
Explanation: does this really need an explanation
under which condition would an object on a desk start to move?
A. Unbalanced forces are applied to the object
b. Gravity pushes the object downward
c. inertia resists any change in its state of motion
d. balanced forces are applied to the object
Answer:
A
Explanation:
I did the test on ap3x
please help me asap!!!
help pleas!!!!
The food coloring spread _______ in the hot water. *
Faster
Slower
Faster
Explanation:
The food coloring travels through hot water better due to the molecules having better energy and move faster than cold water molecules.
please help i don't understand. will mark brainliest
A- soccer ball
B - tennis ball
C - marble
D - ping pong ball
Answer:
marblebrainiest plz\c cmarble
Explanation:
Answer: It is A Soccer Ball
Explanation:
The soccer ball has more force than everything else!
PLSSSSSSSS HELP WILL GIVE BRAINLYIST
Answer:
1st digestion
2nd Most chemical changes in digestion occur in the small intestine
Explanation:
What is the effect of the mass of an object on it’s friction threshold?
Can someone help me with this ASAP
4. B Mantle. 5. C Solid.
Explanation:
.
Answer: Earth's core is the very hot, very dense center of our planet. The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle. ... The core is found about 2,900 kilometers (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometers (2,165 miles). Earth's core is the very hot, very dense center of our planet. The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle. ... The core is found about 2,900 kilometers (1,802 miles) below Earth's surface, and has a radius of about 3,485 kilometers (2,165 miles).
Explanation:
When determining the scope of a disaster, analysts consider which of the following? (There may be more than one correct answer.)
a) the damage created by the disaster
b) the distance to the nearest community
c) number of people affected
d) the square miles of the affected area
The answer Answer:
A,D maybe C
If a person attempts to read their e-mail while they are riding the bus, they are _______.
a.
Combining tasks
b.
Multitasking
c.
Sequential tasking
d.
Cleaving tasks
Answer:
A
Explanation:
Answer:
A
Explanation:
just took the test 4 mins ago
A heavy box is dropped from the roof of a small building and is traveling to the ground. Which claim about the forces acting on the box must be true?
Choose 1 answer:
A. There are no forces on the box.
B. There is no net force on the box.
C. There is a net force on the box.
D. There is not enough information.
Answer:
C. There is a net force on the box.
Explanation:
If the box was stationary, sitting on the roof, the correct answer choice would be A. In this scenario, the box is fallign downward, meaning that there is a net force pushing the box downward.
Answer:
C: there is a net force on the box
Radiant energy comes from the _______.
A. Earth
B.clouds
C.Sun
D.moon
Answer:
C. Sun
Explanation:
In order to ride a bike up a hill with increasing speed—
the rider’s pedal force must be less than friction and the force of gravity
the rider’s pedal force must be equal to than friction and the force of gravity
the rider’s pedal force must be greater than friction and the force of gravity
It is impossible to ride up a hill with increasing speed.
Answer: the rider’s pedal force must be greater than friction and the force of gravity
Explanation:
This is because if the pedal force was less, you would go slower, and it is obviously not impossible to ride up a hill without increasing speed. But if the force was greater, your speed would increase.
Which number indicates how the moon is seen from earth during the second week of the lunar cycle?
During the second week of the lunar cycle, the moon is seen as a waxing gibbous, which appears as a mostly illuminated disc with a small portion of darkness on one side.
What is lunar cycle?The lunar cycle, also known as the lunar phase or the phases of the moon, refers to the regular and predictable changes in the appearance of the moon as seen from Earth.
The lunar cycle is driven by the changing relative positions of the Earth, moon, and sun, and it typically lasts approximately 29.5 days. During this time, the moon goes through a sequence of eight different phases, including new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent, before returning to the new moon phase.
Learn more about lunar cycle, here:
https://brainly.com/question/6014360
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In which of the following situations will the ball have the greatest acceleration?
A golf ball with a mass of 0.045 kg is struck with a force of 1 N
A baseball with a mass of 0.142 kg is hit with a force of 5 N.
A soccer ball with a mass of 0.45 kg is kicked with a force of 20 N.
A bowling ball with a mass of 7.2 kg is thrown with a force of 60 N.
Answer:
your answer should be D hope this helps!
Explanation:
Look at the image and answer the question correctly.
Answer:
B
Explanation:
Answer:
V=IR
12=I×2
I=12/2
I=6 ampere.
Transfer of heat through conduction can occur in which of the following?
A. Solids
B. Liquids
C. Gases
D. All of the above
Answer:d I think
Explanation:
Answer:
D:All of the above
Explanation:
Solid is the best in conduction whereas liquids and gases are poor in conduction
Hope this helps
Which of the following would most likely be an example of a mass-transit disaster?
a) an industrial accident
b) a bridge collapse
c) a hurricane with flooding
d) a nuclear power plant explosion
Answer:
i think it is c if not im sorry if im wrong
Explanation:
Science: Look at the image and answer the question correctly.
Answer:
abcdefghijklmnopqrstuvwxyz
Explanation:
now i know my abcs
List the G.O.A.T. at every position (This is for gym and basketball only) I Will give brainly if whoever answers this question before 20 mins
Answer:
G is Greatest O is Of A is All T is Time
Explanation:
GreatestOfAllTime
According to Newton’s second law of motion, the relationship between an object's mass (m), its acceleration (a), and the applied force (F) is F = ma. How does this law apply to the sport of bowling?
When the pins are correctly aligned, their mass and acceleration will keep the ball from going into the gutter.
When the bowling ball is rolling down the lane, the mass of the ball on the floor makes the pins become unstable, allowing the acceleration of the ball to knock down the pins.
When the bowling ball is rolled with a force, this accelerates the ball. That acceleration, when combined with the mass of the ball, produces a force that knocks down the pins
When the bowling ball hits the pins, the ball has a mass, so it will exert acceleration on the pins and knock them down.
Answer:
When the bowling ball is rolled with a force, this accelerates the ball. That acceleration, when combined with the mass of the ball, produces a force that knocks down the pins.
Explanation:
That is because you accelerate the ball with a force when you roll it, and the mass of the ball has a force that knocks down the pins.
Answer:
When the bowling ball is rolled with a force, this accelerates the ball. That acceleration, when combined with the mass of the ball, produces a force that knocks down the pins. when the bowling ball id rolling with a force, this accelerates the ball. this is why the ball is combinding with the force of the mass of the ball.
Explanation:
Physics: Look at the image. Answer the question correctly!
Answer:
The answer is B
Explanation:
In the demonstration by Cal’s teacher, the string represents the force that keeps the planet in orbit. Which statement BEST describes what would happen first if the string broke while swinging the ball during the demonstration?
A
The ball would continue orbiting.
B
The ball would immediately fall to the ground.
C
The ball would fly in a straight line away from the teacher.
D
The ball would move in a spiral getting farther away from the teacher.
Answer:
yessyes
Explanation:
yes