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Hope this helps :)
Related Questions
Question 1 of 25
A bookcase has a mass of 37 kg. What is the weight of the bookcase?
Help please
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answers
81.6 pounds rounded or just 81.571 if it needs to be exact
what is the kinetic energy of a 1 kilogram ball thrown into the air with an initial velocity of 30 m/s
Answers
Explanation:
KE = 1/2 MV ^2
KE = 1/2 * 1 * 30 ^2
KE= 1/2 * 1 * 900
KE = 450 kg m^2/ s^2
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Answer:
the above pic will help
I have done it in word
I hope it helps mate
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I will always help you understanding your assingments
have a great day
#Captainpower:)
A 35kg cannonball sits at rest on a flat level surface. What is the normal force exerted on the cannon ball. Use -9.8 m/s2 for acceleration due to gravity.
A. -343N
B. 44.8N
C. 25.2N
D. 343N
Answers
Answer:
a) N = 343 [N]
Explanation:
We must remember Newton's third law, which tells us that the force acting on a body is equal to the normal reaction force of equal magnitude but acting in the opposite direction.
[tex]N=m*g[/tex]
where:
m = mass = 35 [kg]
g = gravity acceleration = 9.81 [m/s²]
[tex]N = 35*9.8\\N= 343 [N][/tex]
HEELLLLLPPPPPPPPPPPP MEEEEEEEEEE!!!!!!!!!!!!
Which statement best describes the thermosphere?
The thermosphere sits directly below the troposphere.
Lighter gases such as nitrogen and oxygen rise to the top of the thermosphere.
Heavier gases such as hydrogen and helium stay at the bottom of the thermosphere.
The atmosphere is so thin that gas molecules rarely contact each other.
Answers
Answer:
I think the second one
Explanation:
its the only one that makes since tell me if I'm wrong
Answer:
the answer is "The atmosphere is so thin that gas molecules rarely contact each other."
Explanation: just took the semester test
The surface of the Earth changes from processe such as erosion. Which of these changes to Earth's surface is an example of erosion? A. an active volcano starting to erupt B. a rock turning a red color from oxygen C. a waterfall breaking the rocks below it D. the wind picking up dust and carrying it
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Answer:
D. the wind picking up dust and carrying it
Explanation:
Erosion is a process in which an agent transfer the top soil to another region, thereby exposing the lower soil. These agents have the ability to move the top layer of soil and deposit it at another place. The major agents in this case are; a running or flowing body of water and wind.
Therefore, the change to the Earth's surface that is an example of erosion is the wind picking up dust and carrying it. Thereby exposing the lower layers.
List 5 occasions in real life when you want friction (motion to stop)
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Answer:
*want my husband's mouth to stop moving
*when im driving my car and the light turns red
*i want the person pushing the buggy behind me to stop when I stop
*when I'm on the 16th floor at the Horseshoe Casino Hotel and the elevator keeps passing my floor... would love for it to stop and pick me up
*when Publisher's Clearing House is delivering my big fat check, I definitely want them to stop and hand it over:)
help it's for my civics class
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ANSWER: D. Rule of Law
is the answer
d. rule of law
rule of law .
PLEASEEEEE HELLLLLPPPPPPP
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Answer:
A or B(the answers)
Explanation:
they seem like the most right
Answer:
I'm pretty sure it's b
Explanation:
This image shows flashlight beams reflecting off a mirror from
different angles. Based on the angles of reflection, choose all pairs of
light rays that correctly match incoming light beams with their
reflected light beams,
Question 2. Based on the image and the angles of reflection shown witch statement is true.
A) When a light ray strikes a mirror, it randomly scattered.
B) light is absorbed by mirrors and reflected directly upwards.
C) light travels in a straight line until lit strikes an object
D) light is reflected back to its source when it strikes an object
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Hey I'm working on this test right now, did you ever get the answers?
Which two forces act over very small distances
Answers
Explanation:
There are three fundamental forces that act at a distance. They are gravitational, electromagnetic and nuclear forces.
hope it helps!
Which principle states that the net electrical force on a specific charge is equal to the sum of the vector components of the charges applying forces on it?
angle principle
summation principle
superposition principle
vector principle
Answers
Answer:
C. The superposition principle
Explanation:
:)
Answer:
C
Explanation:
J took the test
Why doesn't the skateboarder roll as high each time she goes up the ramp
Answers
Answer:
The skater has mechanical/gravitational potential energy at the two meter mark. The skater gets to two meters high on the other end of the ramp. In terms of the conservation of energy, the skater will never go higher than two meter on the other end of the the ramp because energy can be neither created nor destroyed.
Explanation:
I hoping it is right!!!∪∧∪ ∪ω∪
Answer:
the reason it wont go higher is because some of the energy converts into thermal energy
Explanation:
I'm the energy master
How do ions help your brain?
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help me help me please please, please
Answers
Which of the following situations has more kinetic energy than potential energy?
a rock at the edge of a cliff
an archer’s bow that is drawn back
a rolling bowling ball
a car waiting at a red light
Answers
Answer:
C. a rolling bowling ball
I just answered this question on my quiz.
Keith has been using a software application for a year on his home computer. A new version of the application was recently released. Keith’s license has a term of two years and entitles Keith to upgrade his application to a new version within the term. What type of license does the application have?
Answers
Answer:
d license with maintenance .
Explanation:
just took this test. :)
Find the displacement of the object moving at v= -2 m/s for t=5s
Answers
Answer:
d = - 10 [m]
Explanation:
We must remember that speed is defined as the relationship between the displacement in a given time. In this way, we can propose the following equation.
[tex]v = d/t[/tex]
where:
v = velocity = 2 [m/s]
d = displacement [m]
t = time = 5 [s]
Now replacing:
[tex]d=-5*2\\d=-10[m][/tex]
Periodontal diseases in teeth and osteoarthritis are common problems that show up on skeletal remains.
O A. True
OB.
False
Answers
Write two forms of mechanical energy
Answers
To balance the forces on the box what direction must you push?
1- Right
2- Left
3- Down
4- Up
Answers
What are all stars made of
Answers
How many significant figures in 0.00850
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Answer:
5
Explanation:
What is the weight of the body under the influence of a force of 10N reaches a speed of 1.5 m / s in 3s?
Answers
Answer:
Explanation:
F=ma
F=10N
A=v-u upon t
=1.5-0 upon 3
=0.5m per second squared
Then do force divided by. Accelaration and multiply by gravity.
What is the relationship between the frequency and the wavelength of a wave?
Answers
Answer: The wavelength and frequency of light are closely related. The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.
Explanation:
What decibel level can cause hearing damage to begin
Answers
Answer: Noise above 70 dB can cause hearing damage
Explanation:
Answer:
The decibel level that starts to have hearing damage is 120 dB.
Explanation:
2. An 873 kg dragster accelerates at a rate of 44.6 m/s during a race.
a. What is the magnitude of the net force exerted on the dragster during this time?
Known (Given):
=
Unknown:
Fnet =
Equation:
Fret=ma (or m*a)
Solution:
Answers
Answer:
38,673.9NExplanation:
According to newton's second law:
Force = mass * acceleration
Given
Mass = 873kg
acceleration = 44.66m/s²
Magnitude of the force is expressed as;
F = ma
F = 873 * 44.6
F = 38,673.9N
Hence the magnitude of the net force exerted on the dragster during this time is 38,673.9N
What is the density of an object with a mass of 20 grams and a volume of 5 cm?
Answers
Answer:
4
Explanation:
Divide mass(m) by volume(v), you get density(D)
m/v=D
20/5=4
When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?
electrical and thermal
thermal and radiant
radiant and nuclear
nuclear and kinetic
hurry brainliest ill give 49 points
Answers
Answer:
Radiant and thermal
Explanation:
Electrical and thermal don't make sense because you are not using electricity to light the match. Radiant and nuclear is not right because you are not using nuclear energy to light the match. Nuclear and kinetic isn't right because you are using kinetic and you are not using nuclear energy.
Answer:
answer is B. thermal and radiant
Explanation:
just got it right on edge
What is the force of gravity between two objects that are 4.0 m apart? The mass of the first object is 0.25 kg and the mass of the second object is 0.65 kg
Answers
Answer:
6.77 x 10^-13 Newtons
Explanation:
using the formula [tex]F= \frac{GMm}{r^2}[/tex]
where G is the gravitation constant which is 6.673 x 10^-11 N m2/kg2
M = mass of the first object which is 0.25 kg
m = mass of the second object which is 0.65 kg
and r is the distance between the objects which is 4 metres
Plugging our values in:
[tex]F\:=\:\left(6.673x10^{-11}\right)\frac{\left(0.25\right)\left(0.65\right)}{4^2}[/tex]
F = 6.77 x 10^-13 N
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Answers
Answer: D) Earthquake
I hope this helps, and Happy Holidays! :)
Answer: Earthquakes
Explanation: Earthquakes impact rupture breaks in the ground, landslides, avalanches, fires, tsunamis, property damage, and loss of life.