Answer:
each half life you lose half the amount so the first one gets you to 28g and the 2nd half life gets you to 14gm
Explanation:
What happens to an object when there are no forces acting on it or all the forces acting on it are balanced?
Answer:
It stays and remains at rest
Explanation:
When no forces acts on an object or all the forces on it are balanced, the body stays at rest or remains stationary.
This is based on the Newton's law of inertia which states that "an object will remain in a state of uniform motion or at rest unless an external force acts on it".
If the forces acting on a body is balanced, the object will perpetually remain and keep at rest
What is the unit of work? (select all that apply) *
force
Kg*m/s^2
kg*m^2/s^2
joule
A lastname
none of the above
Answer:
Joule is the answer
Please give me brainleast
Joule is the unit of work .
What is meant by work ?
Activity that a person habitually engages in to earn a living is activity that persons looking for job engage in.
Activity in which one utilises strength or faculties to do or do anything. a particular duty, responsibility, function, or assignment that often forms a component or stage of a bigger action.
Thus, Joule is the SI unit of work (J). The work accomplished by a force of one newton creating a displacement of one metre is known as a joule.
To learn more about Joules, refer to the below link:
https://brainly.com/question/23501345
# SPJ2
How far does Andre have to push a box to do 430 J of work, if he applies a force of 15 Newtons
Answer:
28.7m
Explanation:
Given parameters;
Work done = 430J
Force applied = 15N
Unknown:
Distance moved = ?
Solution:
Work done is the force applied to move a body through a certain distance.
Work done = Force x distance
So;
430 = 15 x distance
Distance = 28.7m
how do i calculate this?
CAR 1
Momentum = Mass/Velocity
M = 2100/20
M = 105 m/s^2
CAR 2
Momentum = Mass/Velocity
M = 2100/30
M = 70 m/s^2
A moving sidewalk has a velocity of 1.3 m/s north. If a man walks south on the sidewalk at a speed of 0.9 m/s, how long does it take him to travel 20 m relative to a stationary observer? O A. 21.9 s B. 15.4 s O C. 33.3 O D. 50.0 S
help please!!!
Answer:
D: 50 s
Explanation:
We are told that the sidewalk has a velocity of 1.3 m/s north.
Also, we are told that the man walks south on the sidewalk at a speed of 0.9 m/s.
Thus, it means they are moving in opposite directions. The net velocity of the man will be;
v_net = 1.3 - 0.9
v_net = 0.4 m/s
We want to find how long does it take him to travel 20 m relative to a stationary observer,thus;
We we know that;
Time = distance/speed
Time = 20/0.4
Time = 50 s
If a crane uses 500 Joules to raise bricks 20 meters how much Newton’s of force were used
Answer:
25N
Explanation:
Given parameters:
Potential energy expended = 500J
Height = 20m
Unknown:
The force used = ?
Solution:
To solve this problem, we use the expression below:
Potential energy = Force applied x height
500 = Force applied x 20
Force applied = 25N
A 10 kg ball is released from the top of a hill. How fast
is the ball going when it reaches the base of the hill?
Approximate g as 10 m/s2 and round the answer to the
nearest tenth.
m/s
hy = 2 m
h = 0.5 m
Answer: 5.5 m/s
Explanation:
5.5 is the answer for edge :)
can a physical quantity have different dimensions in different systems of units?
Answer:
yes.
Explanation:
becausehjjkvfdssaajkkbcsssddhkkgddd
What happens to sediment as a result of erosion and deposition?
(Basically what happens when Erosion or Deposition occur I think. Pls tell me if I was right along with your answer.)
Answer:
In the explanation
Explanation:
After erosion and eruptions which is a primary occuration for sediments, this will create heat and tough pressure leading the sediment to be extremely stable and Hard.
Which of the following is NOT accelerating?
A ball being juggled.
A women walking at a constant speed of 2.5 m/s along a straight path.
A rocket taking off.
A car slowing down toward a stop sign.
Answer:
3 of them are not accelerating . only one of them is and that one is the rocket taking off because its speed increases
Answer:
Second Option
Explanation:
The answer is the second option or "a women walking at a constant speed of 2.5 m/s along a straight path." Remember that constant means always staying the same so if a women is walking at a constant speed of 2.5 miles per hour on a straight path, she will remain at her current speed at 2.5 mils per hour which isn't acceleration.
Hope this helps.
On Distance Displacement Position vs. Time graphs. Velocity vs. Time graphs, and Acceleration vs. Time graphs, which vanable is always on the x-axis? A:Distance/Displacement/Position C:Acceleration B:Time D:Velocity
Answer:
your question dosent make sense?
Explanation:
Answer:
The time is always in the x axis.
Explanation:
Sue and Shannon are having an argument about diet myths. In order to settle the argument, select the "myth" that is really a TRUE statement.
Answer:
To lose weight, you must use more weight than you consume. (D.)
Explanation:
I took the test and got a 100
Which color of visible light has a shorter wavelength than blue light? O A. Red O B. Green O C. Violet OD. Orange A
Answer:
It's violet........
Explanation:
This was right for me.
The color of visible light that has a shorter wavelength than blue light is Red. The correct option is A.
What is electromagnetic spectrum?The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is packet of energy that travels and spreads out. It has radio waves, infrared waves and visible light waves, ultraviolet rays and microwaves.
They possess high energy even to penetrate deep within the material. electromagnetic spectrum ranges from longer wavelength and less frequency to shorter wavelength and high frequency.
The light with higher wavelength is Blue and the shorter wavelength is Red and the rest of all spectrum colors are in between.
Thus, the correct option is A.
Learn more about electromagnetic spectrum.
https://brainly.com/question/23727978
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Xavier is administering medication to his patient. He administers four cups 4 points
of liquid with two ounces in each and one cup of liquid with three ounces.
How many ounces of liquid did the patient get? *
9 ounces
11 ounces
14 ounces
24 ounces
Answer:
11 ounces
Explanation:
The patient gets 11 ounces of liquid.
From the description of this problem:
Xavier administers four cups of liquid each containing two ounces
The number of ounces in the four cups = 2 x 4 = 8ounces
Also,
One cup of the liquid contains 3 ounces.
Total number of ounces administered = 8 + 3 = 11 ounces.
One role of a producer in a food chain is to provide? A) water for plants B) sunlight for plants C) nutrients for animals D) shelter for animals
Answer:
Nutrients for animals
Explanation:
Producers are organisms that produce their food, they do not need to depend on other animals for their food. They possess photosynthetic properties that enable them to produce their food.
These set of organisms are located at the bottom of the food chain, they can convert components like water, sunlight and air into carbohydrate through the unique process of photosynthesis.
Without these producers, the food chain would not exist as they form the base and foundation of the food chain, some lower animals depend on them as their source of food.
Can we always see the same amount of the illuminated side of the Moon from Earth? Explain. Thanks so much for everyone's help! :)
Answer:
Nope.
Explanation:
No. The Moon rotates on its own axis at the same rate that it orbits around Earth. That means we always see the same side of the Moon from our position on Earth. The side we don't see gets just as much light, so a more accurate name for that part of the Moon is the "far side."
No, we can't see the similar quantity of the illuminated side of the Moon from the planet (Earth).
The gravitation of the moon somewhat distorts the form of our entire globe as well as provides us tidal waves. Earth also taps upon that moon, generating a stony and high-threshold "bulge" that faces us.It finished functioning like something of brakes and slowed right down the moon's rotation to the common material, and therefore high moonlight tide confronts us constantly.
Thus the above answer is correct.
Learn more:
https://brainly.com/question/11606610
What are the characteristics of stars on
the main sequence of the Hertzsprung-
Russell diagram?
Answer:
The main sequence stretching from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) dominates the HR diagram. It is here that stars spend about 90% of their lives burning hydrogen into helium in their cores. Main sequence stars have a Morgan-Keenan luminosity class labelled V.
Explanation:
A shearing of 50N is applied to an aluminum rod with a length of 10m a cross sectional area of 1.0×10-5 and a shear modulus of 2.5×1010 as result the rod is sheared through a distance
Answer:
0.002 m or 2 mm
Explanation:
Given that:
Force, F = 50N
Area = 1 * 10^-5
Length, L = 10m
Shear modulus, = 2.5 * 10^10
Using the relation ;
D = (50 ÷ 1*10^-5) ÷ (2.5 * 10^10 ÷ 10)
D = 5000000 ÷ 2.5 * 10^9
D = 5 * 10^6 ÷ 2.5 * 10^9
D = (5/2.5) * 10^(6-9)
D = 2 * 10^-3
D = 0.002 m
1m = 1000 mm
0.002m = (1000 * 0.002) = 2 mm
What is neptune made out of?
Answer:
Structure. Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80 percent or more) of the planet's mass is made up of a hot dense fluid of "icy" materials—water, methane and ammonia—above a small, rocky core. Of the giant planets, Neptune is the densest.
Explanation:
Answer:
Neptune is one of two ice giants in the outer solar system (the other is Uranus). Most (80 percent or more) of the planet's mass is made up of a hot dense fluid of "icy" materials—water, methane and ammonia—above a small, rocky core. Of the giant planets, Neptune is the densest.
why the student should not heat the oil directly with a flame.
it is possible that, when oil reaches a high enough temperature, it can ignite and burn very fiercely, being difficult to extinguish.
What things do different atoms have in common?
Thank you!
Answer:They come in different kinds, called elements, but each atom shares certain characteristics in common. All atoms have a dense central core called the atomic nucleus. Forming the nucleus are two kinds of particles: protons, which have a positive electrical charge, and neutrons, which have no charge
Explanation:
2. Suppose your car has a maximum braking acceleration of -5 m/s2. Calculate the stopping distance for an initial speed of 25 m/s.
Answer:
s=62.5m
Explanation:
Use the equation v²=u²+2as, where v is the final velocity, u is the initial velocity, a is the acceleration and s is the distance.
0²=25²+2(-5)s
10s=625
s=62.5m
If a dog is running at 4.38 m/s for 37.34 seconds, how far will it go?
Answer:
163.5m
this is how far the doggo would go
(In theory)
If I'm wrong I apologize
To date, Saturn is known to have 13 rings made from which of the following?
A. Dust
B. Dark particles
C. Moons
D. Stars
Answer:
it is believed to be shattered moons, asteroids, and comets, so C
Explanation:
A 900 kg car has a momentum of 11,700 kg-m/s towards the west. What is the magnitude and direction of its velocity?
Answer:
mv=11700
m=900
v=11700/900=13m/s in west
Do the atoms in salt follow a pattern
Answer:
Explanation:
Yes, the atoms in a salt do follow a pattern knows as crystalline pattern or crystalline structure. It means it has an ordered arrangement of atoms or ions. As salt is an ionic compound of Sodium and Chlorine, it is formed through ionic bond. This pattern keeps on repeating for each molecule of NaCl
Answer:
yes they do crystalline pattern as well as othe ionic compounds.
help me match the numbers to terms
Answer:
1 represents the electron flow
2 represents the load.
3 represents the voltage source.
4 represents the conductive path.
Explanation:
Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points 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 represents voltage measured in voltage.
I represents current measured in amperes.
R represents resistance measured in ohms.
In an electrical circuit, there are various symbols used to represent different parameters or quantities as shown in the image attached above and these includes;
a. 1 represents the electron flow. This is a representation of the direction of flow of current.
b. 2 represents the load. This is the electrical appliance such as an electronic bulb that is being powered by the electrical circuit.
c. 3 represents the voltage source. This is typically a battery cell that provides the required amount of voltage for the circuit.
d. 4 represents the conductive path. This is the conductor that carries current from one point to another in the circuit such as copper.
HELP PLZZZ!!!
An archer pulls back the string of the bow (spring constant of 250 N/m) a distance of 1 meter. How much elastic energy is stored?
Answer:
im soo sad brainly wouldnt let me in the account that asked this question now i have to start everything over
Explanation:
Milk in a hot cup can be cooled by pouring its back and fourth between the bigger cup.How does this action help to cool milk?
17. A car traveling with a velocity of 45 m/s and has a mass of 1120 kg. The car has kinetic energy. Calculate it
1134000J
Use the formula for kinetic energy K= 1/2*m*v^2
K=(1120*45^2)/2=1134000 Joule
Answer:
kg
Explanation: