Answer:
45coulombs
Explanation:
Using your equation current=0.9 & time=50secs multiply and your answer is 45. Hope the answer is good enough for u
Troy, Xavier, and Emmitt are all football players. They decide to race each other up the bleachers one day. They take off running and Troy makes it to the top of the bleachers in 10 seconds, beating Emmitt by three seconds and beating Xaiver by five seconds. The bleachers are approximately 50 meters tall. Troy weighs approximately 1200 N, Emmitt weighs approximately 1750 N, and Xaiver is approximately 2100 N.
When a runner hits the ball and makes it around all bases safely to Home Base without getting tagged out it is called a?
Answer:
Home run
Explanation:
i play
At 30 degrees C, 90 grams of NaNO3 is dissolved in 100
grams of water. Is this solution SATURATED,
UNSATURATED, BOTH, or NEITHER
At 30 degrees C, when 90 grams of NaNO3 is dissolved in 100 grams of water, the solution becomes UNSATURATED.
A saturated solution is a solution that doesn't completely dissolve the solute.
An unsaturated solution is a solution that has a lesser amount of solute than the saturated solution in which it is being dissolved. Thus, the solute will be completely dissolved in the solution at the end of the reaction process.
From the given information:
NaNO3(salt) is the solutewater is the solvent.Since the mass of the solute is lesser than the solvent. It implies that the solute will dissolve completely in the solvent.
Therefore, the solution becomes unsaturated.
Learn more about unsaturated solutions here:
https://brainly.com/question/11440974?referrer=searchResults
A 15kg boulder is moved from the Earth to the Moon. Explain what happens to the mass and weight of the boulder.
Answer:
The mass of the boulder remains constant, while its weight decreases with respect to the value of gravitational force on the moon.
Explanation:
The mass of the boulder = 15 kg
On the earth, its mass remains 15 kg. But its weight is;
weight = m x g
= 15 x 9.8
= 147 N
The boulder's weight on the earth is 147 N.
When transferred to the moon, the mass remains constant i.e 15 kg. But its weight decreases due to a change in the value of acceleration due to gravity on the moon. Thus, the boulder becomes lighter in weight.
A football is thrown with an acceleration of 15 m/s^2 and a force of 13 N. What is its mass?
A.150 kg
B. 0.87 kg
C. 2.0 x 105 kg
D. 0.12 kg
3 students push on a 60kg Box, they each exert a 25 N force. What is the box’s acceleration if they all push in the same direction
Answer:
Acceleration = 1.25 m/s²
Explanation:
Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.
Given the following data;
Force applied = 25 N
Mass = 60kg
The net force acting on the box = 25 + 25 + 25 = 75N
To find the acceleration;
Net force = mass * acceleration
Substituting into the equation, we have;
75 = 60 * acceleration
Acceleration = 75/60
Acceleration = 1.25 m/s²
chris and molly wins $2400 in a competition they share the money in the ratio2:3 how much money do they each receive ?
Answer:
chris gets 960 and molly gets 1440
Explanation:
add the ratio up and divide
2+3=5
2400/5=480
480x2=960
480x3=1440
960+1440= 2400
Why didn’t the liquid methane change phase before 2007?
The basic reason is that before 2007 their were not enough energy in the liquid methane molecules to break the bond between them after 2007 the energy of the molecules increases which breaks the bond and the liquid methane changes phase.
Why didn’t the liquid methane change phase before 2007?It had been summer since 2002, but the lake didn’t evaporate until 2007.
The molecular attraction between methane molecules is stronger the amount of energy absorbed by liquid methane was not enough to break the inter molecular forces until 2007.
After 2007, the sun had transferred enough energy so that the kinetic energy of the methane molecules increased enough to overcome the attraction between them.
The liquid methane evaporated and the molecules started moving away from each other.
Thus the liquid methane starts to change phase after 2007 by getting enough energy from the sun.
To know more about the phase change follow
https://brainly.com/question/25664350
Do you think a circuit breaker is wired in series or parallel? Why?
Answer:
I think it's in a series
Explanation:
is this an aviation class
A 350kg motorcycle is moving at 20m/s. It then speeds up to 30m/s. How much work did the engine do to accelerate?
Answer:
momentum= mass× velocity
=350kg (30-20) m/s
=3500kgm/s
True or False: Modulated waves can be analog or digital.
Answer:
True
Explanation:
Modulation waves(schemes) can be analog or digital. An analog modulation scheme has an input wave that varies continuously like a sine wave.
how do we use sounds in ways other than just listening?
Answer:
talking and we can make our own sound
Explanation:
Sound could be an element for detecting people or entities, This is very useful for blind people. Sounds could also heal your chakra or make you feel like dancing.
Hope I helped. :)
- Valenteer
1. If Hailey's comet has an orbital period of 75 years, how far will Hailey's Comet
go?
This question involves the concepts of the time period, orbital radius, and gravitational constant.
The distance of Hailey's comet above the Earth's Surface is "3.19 x 10⁴ km".
The theoretical time period of the comet around the earth can be found using the following formula:
[tex]\frac{T^2}{R^3}=\frac{4\pi^2}{GM}[/tex]
where,
T = Time Period of Satellite = 75 years[tex](\frac{365\ days}{1\ year})(\frac{24\ h}{1\ day})(\frac{3600\ s}{1\ h})[/tex] = 2.36 x 10⁹ s
R = Orbital Radius = ?
G = Gravitational Constant = 6.67 x 10⁻¹¹ N.m²/kg²
M = Mass of Earth = 5.97 x 10²⁴ kg
Therefore,
[tex]\frac{(2.36\ x\ 10^9\ s)^2}{R^3}= \frac{4\pi^2}{(6.67\ x\ 10{-11}\ N.m^2/kg^2)(5.97\ x\ 10^{24}\ kg)}\\\\R=\sqrt[3]{\frac{(6.67\ x\ 10{-11}\ N.m^2/kg^2)(5.97\ x\ 10^{24}\ kg)(2.36\ x\ 10^9\ s)^2}{4\pi^2}}[/tex]
R = 3.83 x 10⁷ m = 3.83 x 10⁴ km
Now, this orbital radius is the sum of the radius of the earth (r) and the distance of comet above earth's (h) surface:
R = r + h
3.83 x 10⁴ km = 0.64 x 10⁴ km + h
h = 3.83 x 10⁴ km - 0.64 x 10⁴ km
h = 3.19 x 10⁴ km = 31900 km
Learn more about the orbital time period here:
brainly.com/question/14494804?referrer=searchResults
The attached picture shows the derivation of the formula for orbital speed.
HELP PLEASE!!!
a= ?
v=
r=
Answer:
[tex]a=\frac{v^2}{r}[/tex]
[tex]v=\sqrt{a*r}[/tex]
[tex]r=\frac{v^2}{a}[/tex]
Explanation:
This is the formula for centripetal acceleration in terms of the tangential velocity (v) and the radius of the circular motion (r). The expression for the acceleration is already given, so simply type it as shown:
[tex]a=\frac{v^2}{r}[/tex]
For the velocity (v) multiply by "r" both sides and then use the square root to solve for v:
[tex]a*r=v^2\\v=\sqrt{a*r}[/tex]
For the radius multiply both sides by r and then divide both sides by the acceleration (a) in order to isolate r completely:
[tex]a*r=v^2\\r=\frac{v^2}{a}[/tex]
ANSWER ASAP!!!!!
Chemotherapy is used to treat many types of cancer. A researcher discovers that modifying treatment by
altering the dosage of a group of drugs and incorporating radiation therapy increases the effectiveness
in treating a particular type of cancer.
Read the information above. How should the researcher proceed?
A. He should request an interview with a representative from a major newspaper.
B. He should keep his findings secret to prevent them from being misused.
C. He should report his findings to a reputable science journal.
D. He should encourage doctors nationwide to use the new course of treatment.
Answer:
He should report his findings to a reputable science journal.
A man carries a 25 kg box 5 meters across the room. How much work is being done?
Answer:
Given :-Mass = 25 kg
Height = 5 m
Acceleration due to gravity = 10 m/s
To Find :-Work done
Solution :-We know that
W = mgh
W = 25 × 5 × 10
W = 250 × 5
W = 1250 J
[tex] \\ \\ \\ [/tex]
A round ball is kicked into the air at an angle of 39 degrees above the horizontal. The
initial velocity of the ball is 32 m/s.
A. How long is the ball in the air?
B. What is the horizontal distance traveled by the ball?
C. What is the maximum height reached by the ball?
Answer:
b
Explanation:
PLEASEE HELPPLook at the diagram of two students pulling a bag of volleyball equipment. The friction force between the bag and the floor is 4 N. What is the net force acting on the bag? What direction is the bag moving in?
Answer:
The net force is 21 N, and the bag will go to the right.
Explanation:
You can find the net force by adding both values of the boy and the girl, and then subtracting four from it. You can also figure out which direction its moving by looking at which side is exerting the most force, which would be the right side.
Hope it helps!
i. )Which unit can be used to express force?
a. Nm
b. kg/s 2
c. kg • m/s 2
d. m/s
ii. )Newton’s second law of motion relates an object’s acceleration to
a. its mass.
b. its velocity.
c. the net force acting on it.
d. two of the above.
iii. )An object is accelerating when it
a. speeds up
b. slows down.
c. changes direction
d. any of the above.
iv. )Doubling the net force acting on an objecta. doubles the acceleration
b. decreases it acceleration.
c. cuts its acceleration in half.
d. does not affect its acceleration.
v. ) If you push a 20 - kilogram mass with a force of 40 N, what will be the object’s
acceleration?
a. 40 m/s2
b. 20 m/s2
c. 10 m/s2
d. 2 m/s2
The correct choices, sequentially and respectively, are c., d., d., a., d.
Fill in the blank: A _____ is dissolved by a solvent
I need help as fast as possible please
Will mark BRAINLIST and will give thanks only to correct answers
Thank you so much!
a lot of points, pls help. i need it done asap
How has our understanding of wave mechanics led to the implementation of tsunami warning systems in vulnerable regions? In your answer be sure to describe how scientists determine wave speed, direction, time of impact and potential wave height.
Answer:
I think it's how far out the water goes from the beach before the tsunami because before tsunami usually the water goes back way behind the tide before tsunami and that tells them everything they need I think
b. Local action and polarization
Explanation:
The local action of a battery is the deterioration of the battery due to currents that are flowing from and to the same electrode. ... Polarization is a defect that occurs in simple electric cells due to the accumulation of hydrogen gas around the positive electrode.
The most acidic rainfall ever recorded fell in Wheeling, West Virginia. The pH of this rain was 1.5. Normal rain has a pH of approximately 5.6. Explain why acid rain is harmful to waterways, animals, and plants.
Please help
What is the angle of the reflected ray in the diagram above?
Do longitude lines run horizontally (east-west) or vertically (north-south)?
to start something moving, a push force must be ______ than resisting forces such a friction. what word complets the gap?
Answer:
To start something moving, a push force must be greater than resisting forces such a friction.
Explanation:
The force of resistance, for example friction, slows things down, so the push force must be greater in order to increase the speed or to start something moving.
Please help!! I'll thank everyone and give brainliest to the best/correct answer!!!
Using your knowledge of fluid pressure, explain why your ears hurt more and more as you dive deeper and deeper underwater.
Answer:
Ear pain is the most common complaint from scuba divers. Some divers call it "ear squeeze." As a diver goes deeper under water and the outer environment pressure increases, the pressure in the middle ear (the part behind the ear drum) is "squeezed" by the increasing pressure of the water from outside
Which of the following most directly shows how physics affects society?
A. A car comes equipped with side air bags.
B. A business conducts meetings over the Internet.
O C. A surgeon performs a heart transplant.
D. A singer wins an award for a song she wrote.
the answer is definitely A.
How is the sun energy important to the earth