Answer:
James Chadwick
Explanation:
James Chadwick discovered that the nucleus of each atom contains neutrons in 1932. Shortly after this, Eugene Wigner suggested that the electromagnetic force is not involved in holding the nucleus together and that there are two different nuclear forces. We now refer to these as the strong and weak nuclear forces.
Answer:
James Chadwick
Explanation:
i just searched it up lol
Peyote contains a psychotropic drug called __________.
A.
guarana
B.
mescaline
C.
salvia
D.
dynorphins
Answer:
B. Mescaline
Explanation:
Answer:
Peyote contains a psychotropic drug called mescaline
or B
Explanation:
help me guyzz plzz.......
answer:
1.When an electric current is passed through a conductor, the conductor becomes hot after some time and produce heat. This happens due to the conversion of some electric energy passing through the conductor into heat energy. This effect of electric current is called heating effect of current.
2.As per the law of combination of resistances in series,
R=R1 +R2 +R3+R4+R5
R=0.2+0.2+0.2+0.2+0.2
=1ohm
3.power is amount of electrical energy consumed per unit time. Amount of power consumed in a device is proportional to the current flowing in the device. The unit of electric power is watt.
Which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid?
Lavoisier and Mendeleev
Döbereiner and Newlands
Newlands and Mendeleev
Lavoisier and Döbereiner
Answer:
The chemists that organized elements based on properties such as how the elements react or whether they are solid or liquid are Lavoisier and Dobereiner
Lavoisier basis of theory is on the various properties of metals, nonmetals and gases.
Dobereiner gave the law of triads. In this theory the middle element is the average of the other two elements.
Answer:
d. Lavoisier and Döbereiner
Explanation:
A current of 10 A moves through a circuit that contains multiple resistors in parallel. Which statement correctly describes the current through the resistors?
The current through all of the resistors will add up to 10 A.
The current through each resistor will be 10 A.
The current will be greatest through the resistor with the highest resistance.
The current will travel only through the resistor with the least resistance.
Answer:
The current through all of the resistors will add up to 10 A.
Explanation:
What is the name of the system for conducting a scientific investigation?
1. Comparative analysis
2. Scientific Method
3. Evaluation Process
4. Trial by error
Answer:
i beleive it is 2
Explanation:
Which 4 of the following would be considered moderate or vigorous activities?
Question 2 options:
going for a run
vacuuming
surfing
basketball
golfing with a powered Cart.
bike riding
1 ) Starting from rest, a toy rocket accelerates at 12 m/sec/sec for exactly 4.0 seconds. It reaches 48 m/sec. Find the distance moved.
with a velocity of 15 m/s, how long would it take the dog to run 100 meters?
Answer
6.66 seconds imma seem like an idiot if something like this is werong
Explanation:
dogg is speed
100/15
Answer:
6.67 s
Explanation:
Assuming that the velocity is constant, then the governing equation in this case is:
Distance = Velocity x Time
or
Time = Distance / Velocity
= 100 / 15
= 6.67 s
What does the mass of an object depend on? A:Force of gravity B: Temperature of the object C:Time taken for an event to occur D: Amount of matter that makes up the object
Answer:
The Answer is D
Explanation:
Brainliest pls
Answer: The answer is D) Amount of matter that makes up the object.
Explanation:
I hope this helps,
have a great day
i took the test!
12. If you cut a wooden block in half, the density will:
A) decrease
C) stay the same
B) increase
D) not enough information
Answer:
The density will decrease over time
Explanation:
It is like when you cut cheese and leave it out for a day of two it is crusty on the outside but when you cut it in half and leave it out for the same amout of time it is even crustier than the whole one.
Hope this helps
please tell me if I'm wrong and i will try to correct my answer
About atoms and molecules plz!?
Answer:
Atoms: They are the smallest part of matter that may or may not exist independently. When atoms come together they form molecules.
Molecules: Many atoms combined either chemically or naturally form molecules. They are the smallest unit of matter that exist independently.
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
help pleasee i give brainliest
Answer:
A is a solid. C is a gas. In solid an liquid the particals are touching. In C, the particals have less affect on each other because they are so far apart.
If an object starts from rest, what is its initial velocity?
Answer:
0 m/s
Explanation:
velocity= change in displacement/ time
at rest, the ball does not travel any distance
0/ t
=0
Using the law of conservation of energy, what is the kinetic energy at B? K.E. = 3, 6, or 4.8
Answer:
3
Explanation:
Which is not a reason why the mass of an atom is expressed in atomic mass units rather than in grams?
Scientists could not agree on a standard.
Atomic mass allows for mass differences in isotopes.
The mass in grams is too small to be useful.
Atomic mass units make it easier to compare the masses of atoms.
Answer:
A. scientists could not agree
Answer:
scientists could not agree on a standard
The force needed to stop an object in motion is called?
force called friction
The force applied to object to stop its motion is known as frictional force.
Newton's first law of motion states that an object in a state of rest or uniform motion in a straight line, we continue in that form unless it is acted upon by an external force. This reluctance of an object to move or stop moving is known as the object's inertia. This inertia depends on the mass of the object.
When an object is finally in motion, the friction, between the object and the surface on which it is moving tends to limit the motion.
Thus, to stop an object in motion, we increase the frictional force between the object and the surface on which the object is moving
Learn more here: https://brainly.com/question/12012843
If a giraffe runs for 30 minutes at a speed of 40 miles per hour, how far will the giraffe run? Please help me
Answer:
20 mi
Explanation:
distance= rate* time
30 min*(1 hour)/ 60 min
.5 hours
(40 mi/hr)(.5 hr)
20 mi
PLLLLLLEEEEESSEEEEE HELP!!!!!!!
A box of weight 280 N is being pulled to the right by a pulling force vec F of magnitude 50 N. The box is moving at a constant speed of 0.84 m/s . To make an accurate free-body diagram of the box, the letter f in the diagram above should be replaced with the label
Answer:
what diagram. I can't see any
this is the graph for this equation
which equation according to ohms law
Answer: Ohm's law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and directly proportional to the resistance of the circuit. The formula for Ohm's law is V=IR.
The photo shows a person pumping gasoline into a car
Which TWO of these energy transformations will occur when the car’s engine starts?
A. Chemical energy —> thermal energy
B. Chemical energy —> mechanical energy
C. Mechanical energy —> Chemical energy
D. Thermal energy —> chemical energy
_____________________
Choose TWO
Answer:
It is CHEMICAL TO MECHANICAL because gas is a chemical which is transferred to mechanical technologies
Answer:
The first one is ^^
The SECOND one is chemical energy to thermal energy
You're welcome for getting wrong so that you can now get it right :|
is it possible that during the big bang the laws of physics changed?
Answer:
yes, so many answers to that like possibilities
Explanation:
i watch a movie
in summer, it is cooler in the ground floor than in the top floor of a building. it is because the warm air rises up due to convention. why does warm air rises up?
Answer:
because heat evaporates water
Explanation:
what is matter and explain ?
Answer:
It is a physical matter that takes up all things.
Explanation:
By take up i mean structures and properties. Let me know you if have more questions about matter :D
4
The accompanying graph represents the motion of an object.
Displacement
Time
According to the graph, as time increases, the velocity of the object
A. decreases
B.
increases
C remains the same
Answer: It remains the same
In a balanced chemical reaction, the total mass of the products always equals the
a.molar mass of the reactants.
c. total mass of the reactants.
b. atomic mass of the reactants.
d. proportional masses of the reactants.
Answer:
A balanced chemical reaction preforms the law of conservation of mass, when the total mass of the products always equals the total mass of the reactants.
Explanation:
In a balanced chemical reaction, the total mass of the products always equals the total mass of the reactants. Thus the total mass of the system is conserved.
What is mass conservation?According to the law of conservation of mass, mass can neither be created nor be destroyed. Hence, the total mass of the system is conserved. However, mass can be transformed into equivalent energy.
The balanced chemical equation of a reaction represents the perfect stoichiometric ratios of each reactants and products. The number of each elements in the product side must be equal to their number in the reactant side.
Therefore, the total mass of a products in a reaction is always equal to the total mass of reactants and no new atoms are created or any reactant elements are destroyed.
Find more on mass conservation :
https://brainly.com/question/14549722
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Problem
Position The figure shows a motorcyclist traveling east along a straight
road. After passing point B, the cyclist continues to travel at an average
velocity of 18 m/s east and arrives at point C2.8 s later. What is the
position of point ?
Answer:
s = 50.4 m
Hence, the point C is 50.4 m towards east from point B
Explanation:
Since, the motorcyclist travels at a constant speed in straight line towards east after point B. Therefore, we can use the following equation in this case:
s = vt
where,
s = distance covered = position of point C = ?
v = uniform speed of motorcyclist = 18 m/s
t = time interval = 2.8 s
Therefore,
s = (18 m/s)(2.8 s)
s = 50.4 m
Hence, the point C is 50.4 m towards east from point B
(BRAINLIEST!) Does more momentum mean more force?
Answer:
no.
Explanation:
Coach Sweeney walks 24 yards to the north along the sideline, pauses, and walks 11
yards back to the south. Determine Coach's resultant displacement.
Answer:
13 yards north.
Explanation:
Distance and Displacement
A moving object constantly travels for some distance at defined periods of time. The total moved distance is the sum of each individual distance the object traveled. It can be written as:
dtotal=d1+d2+d3+...+dn
This sum is obtained independently of the direction the object moves.
The displacement only takes into consideration the initial and final points of the path defined by the object in its moving. The displacement, unlike distance, is a vectorial magnitude and can be even zero if the object starts and ends the movement at the same point.
Coach Sweeney walks 24 yards north and 11 yards back south. If Coach Sweeney started at the origin, the first walk ends in point (0,24). After going back 11 yards, the final point is (0,13).
Since the displacement only takes the initial and final points, we can say the resultant displacement was 13 yards north.
What type of landform is depicted here? a. a mountain b. a depression c. a valley
Answer:
b.mountain the correct answer
Explanation:
what type of ladform ids depicted here? a.a b. mountain b. a depression c. avaley