Answers
Answer:
I would say 3N
Explanation:
Answer:
The first one is 12N and the second one is -22 m/s2
Explanation:
I'm pretty sure these are correct, i just finished that unit in school. I hope this helps:) Have a great day, God bless!
Related Questions
Write whether true or false...
a The forces on a floating object are balanced.
b The forces on a rocket taking off are balanced.
c The forces on a leaf accelerating to the ground are unbalanced.
d All objects that accelerate have balanced forces acting on them
Corrected versions of false statements:
E
Answers
Answer:
a --> true, b --> false, c --> true, d -->false
Explanation:
a) since it stays floating the gravity force and the upqards push is the same
b) if it's balanced the rocket won't move from the ground, the force of the rocket, has to exceed the force of gravity
c) since it's going in a diretion the force of gravity is exceeding the force pushing it up
d) since that are speeding up at a rate, meaning growing, the force is unbalanced.
A student switches the torch on and sees that it gives out a bright light.
After several minutes, the torch begins to fade in brightness.
Give a reason for this fading in brightness.
Answers
Answer:
no more fire duhh
Explanation:
Answer:
The fuel has ran out
Explanation:
Fuel could be Wood,cloth those are longer ones, theres also short term fuel sources such as gasoline, Cloth and wood are the most common for torches usually combined with alcohol, So either No more oxygen which is not likely, or the fuel source is running out
two students stand 4.0 meters apart and shake a jump rope, creating a standing wave with 5 antidotes. what is the wavelength of the standing wave?
1.6m
0.8m
4.0m
5.0m
Answers
Answer:
i think it is 5.0 m but im not sure sorry if im wrong
im in 7th grade
Explanation:
WILL MARK BRAINLIEST!
A ball has 600 J of GPE when it is 6 m above the ground. What is its mass?
A. 8 kg
B. 100 kg
C. 80 kg
D. 10 kg
Answers
Answer: 10
Explanation: 600j = m*10*6
600j/60= m
M=10kg
What is the mass of an object that requires 150N of force in order to accelerate it at 10m/s 2
Answers
Answer: 15kg
Explanation:
F = ma ; Newtons 2nd of Motion
150 = m(10)
m = 15kg
What is the force that attracts metal to other metals called?
1.) magnetism
2.)gravity
3.)nuclear
4.) electricity
Answers
Answer:
1. Magnetism
BRAINLIST PLS!
A force of 162 N is applied to an object causing it to accelerate at a rate of 3.8 m/s^2. What is its mass?
A. 0.2 kg
B. 616 kg
C. 43 kg
D. 102 kg
Answers
Answer:
43 kg
Explanation:
Force (F) = 162 N
acceleration (a) = 3.8 m/s²
mass (m) = ?
We know
F = m * a
162 = m * 3.8
m = 162 / 3.8
m = 43 kg
It's mass is 43 kg.
Hope it will help you :)
Which of the following objects has no kinetic energy?
A picture on a wall
A waterfall
A ball flying through the air
A hockey puck sliding across the ice
Answers
Answer:
a picture on a wall. because it's not moving
What happens to the position of an object as an unbalanced force acts of it? Give an example
Answers
Answer:
When unbalanced forces act on an object at rest, the object will move. ... Second, when unbalanced forces act on a moving object, the velocity of the object will change. Remember that a change in velocity means a change in speed, direction or both speed and direction.........Eg.If you kick a football and it moves from one place to another, it means that unbalanced forces are acting upon it. Ball moves from one place to another after kicking it.
Answer:
unbalanced forces could change speed,direction
Explanation:
Example
if two people are pulling a rope and the other one is stronger the rope moves toward the stronger one cause the force is unbalanced
In nature, what gets energy from nuclear fusion?
Answers
Answer:
Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy.
What is the missing force?
Answers
Answer: -110N
Explanation:
Assign a variable x to the unknown force. The net force was given as +25N, which means the sum of the two forces must equal +25N.
Subtract 135N on both sides
135 + x = 25
x = -110N
The negative sign indicates direction because force is a vector.
TRUE or FALSE: An object's mass changes depending on which planet it is located.
A. TRUE
B. FALSE
Answers
Answer:
Fales
Explanation:
That's why scientists and engineers often measure an object's mass—how much matter the object contains—rather than its weight. Mass stays the same regardless of location and gravity. You would have the same mass on Mars or Jupiter as you do here on Earth. Your weight is different on other planets due to gravity.
Copper has the has a property of becoming a permanent magnet True False
Answers
Answer:
False
Explanation:
If you have a strong enough magnetic field all matter is magnetic. But copper is so weakly magnetic that we can't observe it without very, very large magnetic fields. So the short answer is "No, copper isn't magnetic." This can quickly be tested by trying to pick up a penny with a magnet.
BRAINLIST PLS!
What do we use to spin magnets to supply the city of Portland electricity?
a. power from the Columbia
b. gasoline power
c. solar power
Answers
Answer:
a
hydroelectric dams on the Columbia river
Explanation:
Plz help me!
How do electromagnetic fields work?
Answers
Answer:
Electromagnetic field, a property of space caused by the motion of an electric charge. A stationary charge will produce only an electric field in the surrounding space. If the charge is moving, a magnetic field is also produced. An electric field can be produced also by a changing magnetic field.
Subduction creates ocean trenches true or false!
Answers
Explanation: Earth's tectonic plates converge and the older, denser plate is pushed beneath the lighter plate and deep into the mantle, causing the seafloor and outermost crust (the lithosphere) to bend and form a trench.
help plz anyone ?????
Answers
Answer:
Most likely, it will be harder to get strong magnets to change phase because they have more density.
Newton's Second Law says that the force applied to an object is equal to the mass of the object times its acceleration. In other words, F=ma. Use a rearranged version, a=F/m in order to calculate the acceleration of a 5 kg skateboard when you give it a push of 20 N. PLEASE HELP FAST!!
Answers
Here the force is 20 N and mass is 5 kg
acc= Force/mass
acc=20/5= 4m/s²
A car accelerates on a road at 4.2 m/s2 for 6.5 seconds. How far does the car go doing this?
Answers
Answer:
mmmmmmmmmmm
Explanation:
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
4.2= d/ 6.5
D= 27.3
Someone please help me with this
Answers
Answer:
it's
Non-isolated system (conserved)
Explanation:
this is the answer for this hope it works
Work done against gravity is equal to change in
O kinetic energy
O potential energy
O frictional energy
Answers
Answer:
potential
Explanation:
What are the 2 types of ions.
Answers
Answer:
Anions have more electrons than protons and so have a net negative charge. Cations have more protons than electrons and so have a net positive charge. Zwitterions are neutral and have both positive and negative charges at different locations throughout the molecule.
Explanation:
A person is running at 2 m/s and 20 s later is running at 22 m/s. What is
the acceleration of the runner?
Answers
A toy rocket has a mass of 2.0 kg. The rocket has a force of 8.0 N acting on it. What is the acceleration of the rocket?
6.0 m/s^2
0.25 m/s^2
16.0 m/s^2
4.0 m/s^2
Answers
Answer:
force=mass × acceleration
8=2 × acceleration
acceleration= 8/2= 4 m/s²
Answer:4 m/s²
Explanation:
The air going into the tyre was warmed up by the pumping. What effect will this have on the motion of Gad molecules in the air in the tyre?
Answers
Answer:
they are constantly bouncing everywhere and creating preasure
Explanation:
The motion of gas molecules in the air in the tyre will speed up.
What is motion of molecules?Molecular motion is defined as the movement of molecules in a certain direction. The molecular motions are affected by heat and temperature. This is because the temperature is the measurement of the average kinetic energy of the molecules and represents the motion of molecules.
What is kinetic energy?The kinetic energy of an object is the energy which it possesses due to its motion. It gives the work needed to accelerate a body of a given mass from rest to its stated velocity. To calculate kinetic energy
[tex]K.E = \frac{1}{2} mv^{2}[/tex]
Kinetic energy depends on the velocity of the object which means that when the velocity of an object doubles, its kinetic energy quadruples.
Kinetic energy must always be either zero or a positive value.
Kinetic energy is not a vector.
The gas molecules inside the tyre exert pressure on the walls of the tyre as the molecules collide with the walls of the tyre.
When the air in the tyre becomes hotter, the pressure rises as more collisions.
The pressure in the tyre increases as there will be more frequent collisions with the tyre wall.
To learn more about Molecular motion here
https://brainly.com/question/14240663
#SPJ2
2. What type of signals does the nervous system send? What carries these signals
Answers
Answer:
Nervous system messages travel through neurons as electrical signals. When these signals reach the end of a neuron, they stimulate the release of chemicals called neurotransmitters. Neurotransmitters travel across synapses, spaces between neurons or between neurons and other body tissues and cells.
Explanation:
A hockey ball accelerates from 0 m/s to 25 m/s in 0.05 seconds. What is the acceleration of the ball?
Answers
Answer:
500
Explanation:
25/0.05
I really need help please ASAP
Answers
UVI(Ultraviolet Index) is a scale to measure harmful UV radiations coming from the sun.
EXPLAIN CONSERVATION OF MOMEMTUM WITH THE HELP OF COLLISION OF TWO OBJECT.
Answers
i hate this question.
Conservation of momentum - is when the total momentum before and after collision is equal.
Here is the formula darling,
p = p
mv = mv
See the pic for example. HmpH
Clara made a chart to summarize some of the evidence that supports the big bang theory.
A 2 column table with 2 rows labeled evidence for the big bang theory. The left column is labeled category of evidence with entries redshift, cosmic microwave background radiation (CMB). The second column is labeled description with entries light source and observer move farther apart, light observed shifts to a longer wavelength, indicates receding galaxies, red-shifted to the microwave region, temperature much higher now than at time of big bang.
Which best describes Clara’s error?
During redshift, the light source and observer move closer together, not farther apart.
The CMB is blue-shifted, not red-shifted, to the microwave region.
The temperature of the CMB is cooler, not hotter, than at the time of the big bang.
The redshift indicates approaching, not receding, galaxies.
Answers
Answer:
The temperature of the CMB is cooler, not hotter, than at the time of the big bang.
Explanation:
Hope it help
Mark me as brainliest
Answer:
C
Explanation:
EDG