Answer:
[tex]F=3.37\times 10^{-8}\ N[/tex]
Explanation:
Given that,
Mass of student 1, m₁ = 65 kg
Mass of student 2, m₂ = 70 kg
The distance between the students, d = 3 m
We need to find the magnitude of the gravitational force between the two students. The formula for the magnitude of the gravitational force between two masses is given by :
[tex]F=G\dfrac{m_1m_2}{d^2}\\\\F=6.67\times 10^{-11}\times \dfrac{65\times 70}{(3)^2}\\F=3.37\times 10^{-8}\ N[/tex]
So, the gravitational force between the two students is [tex]3.37\times 10^{-8}\ N[/tex].
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.
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:
A mouse ran 25.45 meters in 11 seconds, stopped for 5 seconds to eat a piece of cheese, ran 2.5 meters in 1.2 seconds to hide behind a shelf, and finally ran another 9 seconds a distance of 15 meters to its home. Calculate the average speed of the mouse in m/s.
If a force of 0.05 N acts on a body of mass 100 grams. Determine the acceleration at which that body moves.
Answer:
a=f/m=0.05/0.1kg
Explanation:
calculate it
hope I helped
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.
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
Fill in the blank: A _____ is dissolved by a solvent
How is the sun energy important to the earth
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!
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.
From a high tower one ball is dropped from rest and the second ball is simultaneously projected horizontally. Neglecting air resistance which ball will reach the ground earlier?
They will reach the ground at the same time.
Because where h is the height of the tower and g is acceleration due to gravity. Since for both the balls h and g are the same, the time must be the same hence both the balls will reach the ground at the same time.
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
pls help me 6th grade science second two pics are the possible answers
Answer:
C
Explanation:
Plotting the data points would get the graph closest to C
What word
When an object is vibrating, we say that it has energy in its kinetic energy___
completes the sentence?
Answer:
that is which produces Sound
Answer:
The right answer is "stores"
Explanation:
All objects that are moving will have some energy in their kinetic energy store.
A guitar string 0.750 m long has a fundamental frequency of 440 hz. The guitarist wants to accent the 5th harmonic by picking at the first loop from the end of the string for this harmonic. How far from the end of the string (cm) should she pick?
Answer: a b c or d
Explanation
The kidneys help the body preserve water. When an animal has not had enough to drink, the kidneys signal the body to absorb water. The animal produces little urine, so it loses less water. During this process, the kidneys work in conjunction with which body system?
A
respiratory
B
integumentary
C
excretory
D
immune
bonus question fredo bang or nba young boy
the law of conservation of momentum states that, if left alone what happens to the total momentum of two interacting objects that make up a system
Answer:
It remains the same
Explanation:
At any point in time the total momentum of two objects interacting remains the same
This follows the laws of space(space is uniform)
Answer:
(Question) Which of these quantities is a vector?
(Answer) momentum
(Question) What is the representation of the momentum vector?
(Answer) an arrow
(Question) What is the formula for the momentum p?
(Answer) p=m⋅v
(Question) What happens to the total momentum in a system of two interacting objects when a net force is exerted upon the system?
(Answer) The total momentum is conserved.
(Question) What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?
(Answer) 6.0
Explanation:
just did the quick check UwU
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]
Alex rides on a bike that starts from rest and accelerates to a speed of 20 m/s in 8 seconds. What is Alex’s acceleration?
Answer:
20m/s
Explanation:
Alex's acceleration is also Alex speed
HELP IM REALLY STRUGGLING WITH THIS!!1
Different isotopes of an element can exist. For example, Carbon can have a mass number of 12 or a mass number of 14. Carbon always has an atomic number of 6.
Describe the difference between these two isotopes of Carbon.
In your answer, compare the number of protons, neutrons and electrons.
Answer:
Carbon 14 has 2 more neutrons than Carbon 12
same number of protons and electrons if they are both neutral atoms (that is the + or - aspect)
Explanation:
Answer:
The difference is the number of neutrons they have.
Explanation:
The atomic number is the number of protons. The number of protons is what differentiates elements. The isotope number is the total weight of the atom, that is the protons plus the neutrons. Therefore the number of neutrons is equal to the atomic mass minus the atomic number. Electrons are generally equal to the number of protons, to balance the charge of the atom.
In short: the difference between the two isotopes is that one has more neutrons.
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.
What is the mathematical equation for the electric force between two charges? Identify each variable.
Answer: F=kq1q2/r2
"F" is the resulting force between the two charges. The distance between the two charges is "r." The "r" actually stands for "radius of separation" but you just need to know it is a distance. The "q1" and "q2" are values for the amount of charge in each of the particles.
Explanation:
The mathematical equation for the electric force between two charges will be ,[tex]\rm F = \frac{K q_1q_2}{r^2}[/tex]. It is a type of attractive force.
What is electric force?The electric force between the two charges is directly proportional to the product of the charge and inversely proportional to the square of the distance between them.
The electric force is found as;
[tex]\rm F = \frac{K q_1q_2}{r^2}[/tex]
q₁ is the magnitude of charge 1
q₂ is the magnitude of charge 2
k is the proportionality constant
r is the separated distance
F is the electric force
Hence, the mathematical equation for the electric force between two charges will be ,[tex]\rm F = \frac{K q_1q_2}{r^2}[/tex]
To learn more about the electric force, refer to the link;
https://brainly.com/question/1076352
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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