Hi there!
We can use the gravitational force equation:
[tex]F_g = \frac{Gm_1m_2}{r^2}[/tex]
Where:
G = Gravitational Constant
m₁ = mass of one sphere (kg)
m₂ = mass of the other sphere (kg)
r = distance between the spheres (m)
Plug in the given values into the equation:
[tex]F_g = \frac{(6.67*10^{-11})(4.0*10^7)(8.0*10^7)}{400^2} = \boxed{1.334 N}[/tex]
Thus, the correct answer is A.
Why did these observations persuade Galileo that the geocentric view of Ptolemy
Answer:
Such phases could only be explained if the planet Venus orbited the Sun. Ptolemy's Geocentric Model could not explain Venus's phases. Galileo was well aware that Ptolemy was mistaken.
Explanation:
Hope it helps:)
if you have a kinetic energy of 1470 J, and you are 60kg mass and 0 m above the ground, what is you velocity?
KE = 1/2 · m · v²
1470 = (1/2 · 60) · (v²)
v² = 1470 / 30
v² = 49
v = √49
v = 7 m/s
(Note: Kinetic energy has nothing to do with height above ground.)
What does forethought mean ? A. Thinking about before doing something b. Not thinking enough about something c. Still think about something that ended d. Thinking about doing something again
A 2.0 kg block is pushed 1.0 m at a constant velocity up a vertical wall by a constant force
applied at an angle of 27.0
◦ with the horizontal, as shown in the figure.
The acceleration of gravity is 9.81 m/s
If the coefficient of kinetic friction between
the block and the wall is 0.30, find
a) the work done by the force on the block.
b) the work done by gravity on the block.
c) the magnitude of the normal force between
the block and the wall.
.
Answer:
(a) The work done by frictional force is 7.0 J
(b) The work done by gravity is 8.9 J.
(c) The magnitude of the normal force on the block and the wall is 17.5 N.
The given parameters;
mass of the block, m = 2 kg
distance moved by the block, d = 1.0 m
angle of inclination of the force, θ = 27⁰
coefficient of friction, μ = 0.4
The normal force on the block is calculated as follows;
The frictional force is calculated as;
The work done by frictional force is calculated as follows;
The work done by gravity is calculated as follows;
The magnitude of the normal force on the block and the wall
Learn more : brainly.com/question/tcs1299821
công cần thiết để đoàn tàu có khối lượng m = 200 tấn tăng tốc từ 36km/h lên 54km/h là
jawaban: what is languange?
Heated air inside a hot-air balloon causes it
to rise into the sky. When
the air
cools, the
like an
balloon returns to the ground. When is the hot-air balloon behaving
air mass in
a high-pressure area? In a low-pressure area?
Answer:
There is pressure on both the in and outsides of the balloon: high inside and low outside, respectively. In terms of air mass, high pressure has greater activity and tends to move upward (balloon rises); whereas low presssure, being slower, descends (balloon descends).
Explanation:
How do you find the centripetal acceleration without the radius???? I genuinely don’t know what to do.
Answer:
In order to calculate the value of force without radius, you may need the circumference whose formula is C=2πr. You can also find this force by calculating just acceleration using the formula: And this is also called Newton’s second law of motion, which can be calculated by entering acceleration and mass of the object.
hope this is what you want
Explanation:
An object in simple harmonic motion obeys the following position versus time equation: y = (0.50 m) sin (π/2 t). What is the amplitude of vibration and its period of vibration?
Hi there!
The Amplitude is the 'A' value of the following SHM equation:
[tex]x(t) = Asin(\omega t)[/tex]
Thus, the amplitude of this object:
A = 0.50 m
The period of vibration is equivalent to:
[tex]T = \frac{2\pi}{\omega}[/tex]
In this instance:
[tex]\omega = \frac{\pi}{2}[/tex]
Therefore:
[tex]T = \frac{2\pi}{\frac{\pi}{2}} = \frac{4\pi}{\pi} = \boxed{\text{ 4 seconds.}}[/tex]
A ball is launched into the air at an angle of 32ᵒ with an initial speed of 18 m/s. Neglecting air resistance, determine
(i) how high the ball will go
(ii) how long it will be in the air, and
(iii) how far it will travel
Hiii Can somebody take their precious time to answer this question?
Answer:
Vy = 18 sin 32 = 18 * .5 = 9.54 vertical speed
Vx = 18 cos 32 = 18 * .848 = 15.3 m/s horizontal speed
ty = Vy / 9.80 = .973 to get to top
t = 2 ty = 1.95 sec (total time in air
Average speed up = 9.54 / 2 = 4.77 sec
Height ball rises = 4.77 * .973 = 4.64 m
Or H = Vy t - 1/2 g t^2
H = 9.54 * .973 - 4.9 * .973^2 = 4.64 m as found above
D = Vx t = 15.3 * 1.95 = 29.8 m for distance traveled
18. (II) Tarzan plans to cross a gorge by swinging in an arc
from a hanging vine (Fig. 5-42).
If his arms
are capable of
exerting a force of 1150 N on
the vine, what is the maximum
speed he can tolerate at the
lowest point of his swing? His
mass is 78 kg and the vine is
4.7 m long.
Answer:his weight plus the centripetal force must equal 1170 N
Explanation:
83.0 [g + (v^2 / r)] = 1170
v^2 / 18.0 = (1170 / 83.0) - 9.81
tia sáng mặt trời chiếu xiên hợp với mặt ngang một góc 30 độ đến gương cho tia phản xạ có phương thẳng đứng hướng xuống dưới. Tìm góc hợp bỡi mặt gương và đường thẳng đứng
My 2nd Question Asked:
If the universe is expanding, what is it expanding into?
Answer:
even more space than it already encompassed.
Explanation:
it is expanding into nothingness or it might it expanding in and of itself
can anyone help me put this sentence into a scientific grammar ig : I had to put the blocks on the weigher, and wright down how much they weigh. I had to put the blocks next to the ruler to measure the height.
Answer:
I had to put the blocks on the weigher, and write down how much they weigh. I had to put the blocks next to the ruler to measure the height.
Explanation:
u would change wright to write because wright can be a name and if u change it to write that would be correct because u are actually writing something down. so it would be right because u are writing something down
A car is parked on a 20 degree hill. It has a mass of 1550 kg. What is the frictional force on the car?
Answer:
Explanation:
The friction force must balance (acting up slope) the weight component of the car (acting down slope)
Ff = mgsinθ
Ff = 1550(9.8)sin20
Ff = 5,195.28597...
Ff = 5200 N
What is 100 thousand years called
Answer:
100 millenniums
Explanation:
1,000 = millennium
100,000 = 100 millenniums
millennium how to do 20 letters
Four people are pulling on a box with the forces shown below. If there are no other forces on the box, in what direction will it move?
toward the right side of the page
toward the bottom of the page
directly toward Arthur
directly toward Diane
Answer:
go to the website jiksha
Explanation:
all How did Washington work for American independence?
Answer: George Washington (1732-99) was commander in chief of the Continental Army during the American Revolutionary War (1775-83) and served two terms as the first U.S. president, from 1789 to 1797. ... During the American Revolution, he led the colonial forces to victory over the British and became a national hero.
Answer:
George Washington was commander in chief of the Continental Army during the American Revolutionary War and served two terms as the first U.S. president, from 1789 to 1797. ... During the American Revolution, he led the colonial forces to victory over the British and became a national hero.
What is net force 200N air and 600N gravity
The Israelites were led to freedom by Adam after 400 years of bondage. True or False?
Answer:
False
Explanation:
Moses led them out of Egypt and through the desert. His general, Joshua, then took over.
what is the average speed of the object during the first 4.0 seconds?
0 m/s^2
2 m/s^2
4 m/s^2
8 m/s^2
Answer:
The average speed of the given object.. is 2m/^s
A car travels at a constant speed around a circular track whose radius is 2.5 km. The car goes once around the track in 290 s. What is the magnitude of the centripetal acceleration of the car
are the muscles around your heart area. A. Skeletal muscles B. Cardiac muscles C. Smooth muscles D. Strong muscles
Answer:
Option B
Explanation:
The muscles around your heart consist of "cardiac muscles" or option B. Cardiac itself means heart or involving the heart, and cardiac muscles is one of the main components or tissue that surrounds your heart. It's not option A because skeletal muscles are the muscles that cover your bones, it's not option C because smooth muscles are only involved with digestion and gaining nutrients for your body. Which leaves option D and strong muscles isn't the answer because strong muscles is the amount of force a person can put out or strength.
Hope this helps.
A hooligan throws a stone vertically down with an initial speed of 17 m/s from the roof of a building 51 metres above the
ground. What is the speed of the stone at impact?
Answer:
Explanation:
v² = u² + 2as
v² = 17² + 2(-9.8)(-51)
v² = 1,288.6
v = ±35.89707...
v = 36 m/s
When converted to a household measurement, 9 kilograms is approximately equal to a) 9000 grams. b) 9000 ounces. 19.8 ounces. d) 19.8 pounds.
Answer:
the answer is because Ikg gives 1000g
when gravity pulls a skydiver towards the Earth the reaction forces A. the weight of the skydiver B. air resistance C. drag D. the skydiver pulling the earth
How to calculate refractive index
Refractive index 'n' = sin incidence / sin refection
Refractive index has no unit.
Which of the following is most likely to form when hot magma rises up as tectonic plates move apart below the ocean?
Mid-ocean ridge
Fault
Trenches
Subduction zone
Answer:
A.
Explanation:
It's " Mid-ocean ridge". Have a nice day!
What is the coefficient of Static Friction if It Takes 44N of force to move A Box that Weight 86N ? A, 0.78 B 0.51. C.0.78N D. 0.51N.
Answer:
1. What is the force of friction between a block of ice that
weighs 930 N and the ground if m = .12?
F fr £ µ sF N
F fr = µ kF N
F = ma
F N = 930 N
µ s = .12
F fr =µ kF N = (930)(.12) = 111.6 N = 110 N
(Table of contents)
2. What is the coefficient of static friction if it takes 34 N of
force to move a box that weighs 67 N?
F N = 67 N
µ s = ?
F fr =34 N
F fr = µ kF N
34 = µ k(67)
µ s = .507 = .51
(Table of contents)
3. A box takes 350 N to start moving when the coefficient of
static friction is .35. What is the weight of the box?
F N = ?????
µ s = .35
F fr =350 N
F fr = µ kF N
350 = (.35)F N
F N = 1000 N = 1.0 x 10 3 N
(Table of contents)
4. A car has a mass of 1020 Kg and has a coefficient of
friction between the ground and its tires of .85. What force of
friction can it exert on the ground? What is the maximum
acceleration of this car? In what minimum distance could it
stop from 27 m/s?
First find the normal force which is the weight in this
case:
F = ma = (1020 kg)(9.80 m/s/s) = 9996 N = F N
Then use the Friction formula to find the frictional
force with the ground:
F fr = = (.85)(9996 N) = 8496.6 N = 8500 N
Now we can find the acceleration. The Force of
friction is what speeds up the car, so
F = ma
8496.6 N = (1020 kg)(a)
a = 8.33 m/s/s = 8.3 m/s/s
So now we need to solve a cute linear kinematics
problem:
x = ?????
v i = 27
v f = 0
a = -8.33 m/s/s (slowing down)
t = don't care
Use vf 2 = vi 2 + 2ax:
0 2 = (27) 2 + 2(-8.33 m/s/s)s
x = 43.76 m = 44 m
(Table of contents)
5. Clarice moves a 800. gram set of weights by applying a
force of 1.2 N. What is the coefficient of friction?
m = 800. g = .800 kg (divide by 1000)
First find the normal force which is the weight in this
case:
F = ma = (.800 kg)(9.80 m/s/s) = 7.84 N = F N
Next - apply the force of friction formula:
F fr = µ kF N
1.2 N = µk (7.84 N)
µ k = .15306 = .15
(Table of contents)
Explanation:
Note that is not an answer that is guide
thanks po
hope it help ❤️
a 500kg Cannon fires a 5 kg Cannonball Which object experience the greatest Force? A. The cannon B. the force are equal and opposite C. not possible to determine D. The cannonball
it's because the cannon pushing the bullet to fire
hope it helps!CAN SOMEONE HELP ME ON THIS *VIEW THE PICTURE*
need help with question #1,2,3
Answer:
i dont know
Explanation:
but i know that someone knows
