Answer: James Chadwick
:)
A 36 kg wagon is accelerated across a level surface at 0.9 m/s ^ 2 What net force in Newtons that acts on the wagon ?
Answer:
32.4 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question
mass = 36 kg
acceleration = 0.9 m/s²
We have
force = 36 × 0.9 = 32.4
We have the final answer as
32.4 NHope this helps you
a movement of charges in response to a potential difference is called:
Answer:
current
Explanation:
PLEASE HELP!!!
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.
(a) The resistance needed to generate that current is 480 ohms.
(b) When the current increases, the resistance in the circuit decreases.
The given parameters;
Voltage, V = 120 VCurrent, I = 0.25 AThe resistance needed to generate that current is calculated as follows;
[tex]V = IR\\\\R = \frac{V}{I} \\\\R = \frac{120}{0.25} \\\\R = 480 \ ohms[/tex]
When the current increases, the resistance in the circuit decreases.
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. A student times a car traveling a distance of 2 m. She finds that it takes the car 5 s to
travel the first meter and then another 8 s to travel the second meter. Is the car traveling
at a constant speed? How do you know?
what are the main obstacles Gey and his assistants faced in their effort to grow cells.
This may be chemistry or physics but I need help regardless
Answer:
C.I dont know but that is my answer
Sebastián midió un trozo de plástico en un momento donde la temperatura era alta, y luego a la noche volvió a medir y no medía lo mismo. ¿Qué pasó?
English:
The piece of plastic most likely cooled.
/
Español:
Lo más probable es que la pieza de plástico se haya enfriado.
A volleyball is knocked from rest to a velocity of 22 m/s over a time of 0.2
seconds. The ball has a mass of 0.5 kilograms, What is the force applied to
the volleyball?
Answer:
[tex]\boxed {\boxed {\sf 55 \ Newtons}}[/tex]
Explanation:
We are asked to find the force applied to the volleyball. According to Newton's Second Law of Motion, force is the product of mass and acceleration.
[tex]F=ma[/tex]
We are given the mass, but we must calculate the acceleration.
1. Acceleration
Acceleration is the rate of change of velocity with respect to change. It is the change in velocity over the time.
[tex]a= \frac{v_f-v_i}{t}[/tex]
The volleyball starts at rest or 0 meters per second and reaches a velocity of 22 meters per second in 0.2 seconds.
[tex]v_f[/tex]= 22 m/s [tex]v_i[/tex]= 0 m/s t= 0.2 sSubstitute the values into the formula.
[tex]a= \frac{ 22 \ m/s - 0 \ m/s}{0.2 \ s}[/tex]
Solve the numerator.
[tex]a= \frac{22 \ m/s}{0.2 \ s}[/tex]
Divide.
[tex]a= 110 \ m/s^2[/tex]
2. Force
Now we know the mass and acceleration, so we can calculate the force.
[tex]F=ma[/tex]
The mass is 0.5 kilograms and the acceleration is 110 meters per second squared.
m= 0.5 kg a=110 m/s²Substitute the values into the formula.
[tex]F= 0.5 \ kg * 110 \ m/s^2[/tex]
Multiply.
[tex]F= 55 kg*m/s^2[/tex]
1 kilogram meter per second squared is equal to 1 Newton, so our answer of 55 kg*m/s² is equal to 55 Newtons.
[tex]F= 55 \ N[/tex]
55 Newtons of force are applied to the volleyball.
near earth's surface is the weight of an object in newtons about 10 times it's mass in kilograms?
Answer:
Weight varies with location depending upon the acceleration due to gravity eg. for a mass m = 10kg on Earth it`s weight is W = mg = 10 x 10 = 100N.
Explanation:
Near Earth's surface, the weight of an object in newtons is 10 times its mass in kilograms. This relationship of the acceleration is due to gravity on Earth, which is 9.81 m/s².
Mathematically, it can be expressed as:
Weight (in newtons) = Mass (in kilograms) × Acceleration due to gravity
So, an object with a mass of, for example, 5 kg, its weight near the Earth's surface would be:
Weight = 5 kg × 9.81 m/s² = 49.05 N
The weight in newtons is roughly 10 times the mass in kilograms of objects near the Earth's surface. The given statement is correct.
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When a marble rolls from starting point to a stopping point the type of motion is called __________ _______.
Answer: Rotational motion
Explanation: The two types of motion of the rolling ball are translational motion and rotational motion. The center of mass of the ball undergoes translational motion whereas the ball undergoes rotational motion in the center of mass frame.
a tine can collapes if all air inside it is taken out, why
When all the air inside the tin are taken out, the air outside the tin becomes greater than the air inside causing inward pushing of the tin which results in collapse of the tin.
What is unbalanced force?This is a situation when the forces acting on an object are unequal.
A tin will remain firm when air inside it is prevented from escaping. During this time, the forces of air outside the tin balances the forces of air inside the tin, this process creates equilibrium condition that cause the tin to be firm.
When all the air inside the tin are taken out, the air outside the tin becomes greater than the air inside causing inward pushing of the tin which results in collapse of the tin.
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How is the amount of oxygen in ocean water affected by temperature?
Answer:
The amount of oxygen in ocean water increases as temperature increases. Sunlight penetrates the top layers of the ocean, so photosynthesis occurs there. Nutrients, minerals, and gases are more available to marine life in the bottom layers of the ocean.
Explanation:
is there anyone who lives in colorado
Answer:
not me
Explanation:
Which equation states Newton's second law?
A. Fa = m
B. F = ma
C. F = m/a
D. F = a/m
Nhận xét về nét riêng trong cách thể hiện tình yêu của xuân quỳnh qua 3 khổ thTrong thí nghiệm về giao thoa sóng trên mặt nước gồm hai nguồn kết hợp S1S2 cách nhau 15 cm với dao động với tần số 30Hz. Tốc độ truyền vòng 48 cm/s.
a. Tìm khoảng cách giữa hai cực đại gần nhau nhất.
b Tìm số điểm dao động với biên độ cực tiểu giữa S1S2.
c. Trong vùng giao thoa điểm M trên mái nhất cách S1S2 lần lược các khoảng MS1 =1,5 cm và MS2=7,9 cm. M là cực đại hay cực tiểu và là đường thứ bao nhiêu so với đường trung trực của S1S2.
Answer:
sorry bro I can't understand this language so you can ask from the Wikipedia
how would a flashing red light appear as it fell into a black hole?
Answer:
it would be crushed by the weight and force of the red hole so it wouldn't be possible.
but hypothetically, I personally think the darkness will act as a light conductor and color the bright light just how the sun *bright light* covers the light from our phones. even with the brightness up, the lights to bright. but for the black hole, I think it would be that thr dark is too dark so you can't see. like when you look directly at something in the dark and you can't see it. if you look somewhere demi close to it you can though.
It couldn't be done since the red hole would crush it under its weight and force. However, in a hypothetical situation, I believe the blackness will serve as a light conductor and tint the brilliant light similarly to how the sun's bright light shades the lighting from our phones. Even when brightness is increased, the lights are too bright. For the black hole, I believe the problem would be that it is too dark, and you can't see. Similar to when you stare directly at someone in the dark, and you cannot see it. However, you can if you look somewhat nearby.
What is a black hole?A black hole is a sector of spacetime where gravity is so powerful that nothing can leave from it, not even electromagnetic radiation like light. A sufficiently compacted mass can distort time to create a black hole, as per generalized relativity theory. The event horizon is the time when there is no way out. According to general relativity, it has no locally observable characteristics, despite having a significant impact on the outcome and circumstances of an item crossing it.
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which of the following correctly describes the velocity and acceleration of the object after 4s?
Answer:
C
Explanation:
The acceleration will be negative, as in the problem statement, the upwards direction is defined as positive (the object is shot upwards and has a positive velocity), so immediately, we can eliminate A and B.
You can then use the kinematics equation:
[tex]v=v_o+at[/tex], where
a= -9.8 m/s^2 (acceleration due to gravity)
t= 4 s (time)
v[tex]_0[/tex]= 20 m/s (initial speed)
when you solve, the final velocity is -19.2 m/s, so the velocity is negative (the object is on its way down).
please help ! Which of the following objects has the greatest momentum?
Answer:
An object with a mass of 0.5 kg and a velocity of 3 m/s
Explanation:
Momentum = mass * velocity
= 0.5 * 3
= 1.5
Highest value among all.
Hope it helps!!
There you go, this is to the question before this one
Answer:
This is really off topic but to start/end your day, you are stunning and amazing~ <3
Does photosynthesis absorb or release energy
it absorbs energy and releases oxygen and glucose.
what phenotypes would you expect from a cross between a red bull and a white cow?
Answer:
The phenotypes of the offspring will be 100% roan.
Explanation:
For spring break you are traveling to San Diego. The trip is 1,746.4 miles and the trip takes 20.1 hours. How fast will you be traveling (in miles per hour)?
Answer:
86 mph
Explanation:
brainliest pls
A Dog Is 60 m Away from while moving at a constant velocity of 10 m/s towards you.where is the dog after4 seconds?
Answer:
20 meters away from you.
LOTS OF POINTS!!!!! SOMEONE PLEASE HELP THIS IS OVERDUE AND MY TEACHER MIGHT GIVE ME A 0 WHEN SHE SEES I HAVEN'T SUBMITTED IT YET!!!!!
What is the kinetic energy of a 24 kg mass that is moving with a velocity of 3.5 m/s?
Explanation:
using kinetic energy=½MV²
m=24kg
v=3.5m/s
½×24×3.5²=147J
Why do all of the planets have orbits that lie in nearly the same plane and that are in the same direction -- counterclockwise looking down on the solar system from far above the Earth's North Pole
Answer:
Because of the way the Sun formed
Explanation:
The original cloud was spinning, and this spin caused it to flatten out into a disk shape due contracting as gravity pulled its parts toward the center. This dust cloud rotated slowly at first but sped up as it contracted, in much the same way that a figure skater spins more quickly when she pulls her arms closer to her body. (This law of physics is known as angular momentum.) The faster rotation flattened the cloud, with the Sun at the center and planets forming within that plane
A force of 50N acts in an easterly direction on an object at the same time as a force of 80N pushes on it in the direction of N 45 degrees E. Determine the magnitude and direction of resultant force
Answer:
Refer to the MS Word Document page to get explanation and answers.
unit conversion - miles/h to metres/s
Answer:
120 miles/h = 53.6448 m/s
Explanation:
1 mile per hour = 0.44704 m/s
120 * 0.44704
= 53. 6448 m/s
Which of the following characteristics of Earth's crust is likely to contribute to geological events?
Answer: it can be broken into many plates
Explanation:
Identify the symbol,
atomic number, and
mass number for the
element GOLD.
Answer:
The symbol is Au, the atomic number is is 79, and the atomic mass is 196.97
Answer:
Symbol: Au
AN: 79
MN: 196.96657 u
Explanation:
Symbol: The symbol Au derives from the Latin aurum, for Aurora, the goddess of dawn. Gold was known and highly valued in prehistoric times. An attractive and highly valued metal, gold has been known for at least 5500 years.AN: Gold, Au, has an atomic number of 79. ... Gold is a transition metal that is attacked by chlorine, fluorine, and cyanide. Gold is the 79th element in the periodic table. it has 79 protons in its nucleus and 79 outter electrons.MN: The stable isotope of gold with relative atomic mass 196.966552, 100 atom percent natural abundance and nuclear spin 3/2.
