Answer:
gravitational potenetial energy =ℎ
Explanation:
none
8. How do you think the biodiversity of a large forest compares to a small forest?
Answer:
A large forest has more toes than the smaller forest
Explanation:
If the dog barks twice, but the cat doesn't, then it states that I caw can ring 5 times.
Does anyone know how to solve this?
A cord 3m long is coiled around the axle of a wheel. The cord is pulled with a constant force of 40N. When the cord leaves the axle, the wheel is rotating at 2rev/s. Determine the moment of inertia of the wheel and axle. Neglect friction.
Answer:
Explanation:
2okg
What should people do to save blue whales?
Answer:
Participate in beach cleanups to reduce water pollution.
Explanation:
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!
If an object moves at a constant velocity of 3 m/s, what is the force acting on the object
Answer:
Explanation:
don't know about any of the individual forces but the NET FORCE is zero.
If there were a net force, then acceleration would occur and velocity would not be constant.
Đoạn dây dẫn thẳng có dòng điện I chạy qua, đặt trong từ trường
đều và vuông góc với các đường sức từ. Lực từ tác dụng lên đoạn dây
có phương
A straight piece of wire with a current I flowing through it is placed in a magnetic field
A straight piece of wire with a current I flowing through it is placed in a magnetic fielduniform and perpendicular to the magnetic field lines. Magnetic force acting on the string
A straight piece of wire with a current I flowing through it is placed in a magnetic fielduniform and perpendicular to the magnetic field lines. Magnetic force acting on the stringthere is a way
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
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:)
Which of these are properties of analog signals?
Analog signals are often combinations of many other analog signals.
Analog signals are quantized.
Analog signals can take on any value.
Analog signals are susceptible to noise.
Answer:
Analog signals are susceptible to noise
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
What is 100 thousand years called
Answer:
100 millenniums
Explanation:
1,000 = millennium
100,000 = 100 millenniums
millennium how to do 20 letters
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:
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
Just Answer No Need To Explain and please no SPAM 100 POINTS!!!!
A ceiling fan operates at three speeds, using 120 V of electricity from the wall. At low speeds, it uses 0.25 A. Calculate the resistance needed to generate that current. Then in 1-2 sentences, describe how the resistance would change at medium and high speeds if larger currents are needed at those speeds. Your answer should include the calculated resistance and a sentence describing your reasoning.
Did anyone get an answer for this??
I. The resistance which is needed to generate a current of 0.25 Ampere in the ceiling fan is 480 Ohms.
II. Since current is inversely proportional to the resistance in the electrical circuit, an increase in the current (larger currents) flowing into the electrical circuit of the ceiling fan would cause the resistance to decrease in magnitude at medium and high speeds.
Given the following data:
Voltage = 120 VoltsCurrent = 0.25 AmpereTo calculate the resistance needed to generate that current, we would apply Ohm's law:
Ohm's law states that at constant temperature, the current flowing through an electrical circuit is directly proportional to the voltage (potential difference) applied across the two terminals of the electrical circuit and inversely proportional to the resistance in the electrical circuit.
Mathematically, Ohm's law is given by the formula;
[tex]V=IR[/tex]
Where;
V is the voltage measured in Volts.I is the current measured in Ampere.R is the resistance measured in Ohms.Making R the subject of formula, we have:
[tex]R =\frac{V}{I}[/tex]
Substituting the given parameters into the formula, we have;
[tex]R=\frac{120}{0.25}[/tex]
Resistance, R = 480 Ohms
Since current is inversely proportional to the resistance in the electrical circuit, an increase in the current (larger currents) flowing into the electrical circuit of the ceiling fan would cause the resistance to decrease in magnitude at medium and high speeds.
In conclusion, the larger the current, the lower the resistance would be at both medium and high speeds.
Read more on resistance here: https://brainly.com/question/23754122
How much work is done in holding a 20 N sack of potatoes while waiting in line at the
grocery store for 1000s ?
A. 20000J
B. 100J
C. 0.5J
D. Can’t be calculated
Answer: A
Explanation:
honestly, it sounded the best
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
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
Hello, I wanted an answer from a mathematician. The number 1.04 is closer to the number 1, 2, 1.25 or 1.5.
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
HELPPPPPPPPP PPPP PPPPP
Answer:
I believe Beta Radiation based upon my research
Explanation:
Answer:
n
Explanation:
klljl
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
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]
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
You throw an 8.75 g coin straight up into the air. The coin travels a distance of 776 cm upward.
What was the initial speed of the coin when you released it? Give your answer in units of m/s
and assume the coin is in free fall while it is in the air
Answer:
halo
Explanation:
good bye
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.
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
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?
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!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
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 ❤️
