1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
deff fn [24]
3 years ago
9

In nuclear reactions, the products have less than the reactants. A) mass B) energy C) momentum D) mass-energy​

Physics
1 answer:
nexus9112 [7]3 years ago
8 0
It should be A; mass

You might be interested in
What nuclear reaction is the energy source of a white dwarf?
sammy [17]

Answer:

Multiple choice answer would be "None"

Explanation:

White dwarfs are radiating stored heat from earlier reactions.  

Technically, it would be the last fusion stage the star went through  

BEFORE it became a white dwarf, but that's nit-picking.

7 0
4 years ago
A lab group was given a candle, a match, a strip of cloth, tongs, and a metal can. They were asked to use these materials to mod
Troyanec [42]

Answer:

The materials with which the lab group are to use for the model includes;

i) A candle

ii) A match

iii) A strip of cloth

iv) Tongs

v) A metal can

The processes the lab group are to model are;

a) Conduction

b) Convection

c) Radiation

The procedure the lab group can use to do this is outlined as follows;

1) Tie the piece of cloth around the metal can with a strip of the cloth extending past the bottom of the can

2) Hold the metal can in with the aid of the tongs

3) Light the candle with the match

4) Place the metal can over over the burning candle so that it does not touch the flame

5) While holding the can with the tongs, ensure that the strip of cloth hanging by the side of the can does not come in contact with the flame

Conduction

Conduction heat transfer is observed by the rising temperature of the tongs that is in the contact with the can

Convection

Convection heat transfer is observed by the rising temperature of the can that is placed in the path of the rising convection current from the candle wax

Radiation

Radiation heat transfer is observed by the shrinking of the piece of cloth placed beside the candle flame

Explanation:

3 0
3 years ago
A traveler pulls on a suitcase strap at an angle 36 above the horizontal with a force of friction of 8 N with the floor. If 752
goldenfox [79]

Answer:

71.8 N

Explanation:

T = Tension force in the strap

W = net work done = 752 J

f = force of friction = 8 N

d = displacement = 15 m

θ = angle between tension force and horizontal displacement = 36 deg

work done by frictional force is given as

W' = - f d

Work done by the tension force is given as

W'' = T d Cos36

Net work done is given as

W = W' + W''

W = T d Cos36 - f d

752 = T (15) Cos36 - (8) (15)

T = 71.8 N

8 0
3 years ago
One day on her walk home from school, Leann noticed some rust on an old car Leann knows that when iron and oxygen chemically rea
Katena32 [7]

Answer:

reactants

Explanation:

The reaction model is given as shown below:

                            4Fe   +   3O₂   →   2Fe₂O₃

The name that describes the iron and oxygen found on the left hand side of Leann's model is reactants.

Reactants in a chemical expression are the species that are combining together to give a product.

Some reactions only have one reactant and such a chemical process is often termed decomposition reaction.

The two moles of Fe₂O₃ is the product of the reaction.

4 0
3 years ago
How much heat is needed to raise the temperature of 5g of water by 20oC?
Ratling [72]
Required Heat = Q

Q = Mass * specific heat of water * change in temp.

Q = 5g * 1g/cal*degC * 20degC

Q = 100 cal of heat is required

To convert calories to Joules,
1 cal = 4.184 Joules

100cal = 418.4 J of heat is needed
5 0
3 years ago
Other questions:
  • a crane does 9,500 J of work to lift a crate straight up using a force of 125 N. how high does the crane lift the crate?
    11·1 answer
  • The process by which a gas changes to a solid is...
    13·2 answers
  • What is another name for a "causal loop"?
    11·2 answers
  • I need help on this pls
    11·2 answers
  • Light with a frequency of 7.30 x 1014 hz lies in the violet region of the visible spectrum. What is the wavelength of this frequ
    6·1 answer
  • Which scenario is an example of a scientific way of thinking?
    5·1 answer
  • 3) What is the name of the group of elements that are a good conductor of heat?
    15·1 answer
  • Cuál es el peso de una pelota de masa de 10 kg en jupiter?​
    12·1 answer
  • Read the passage.
    9·2 answers
  • One end of an elastic cord is fastened to a steel beam. A metal weight with a mass of 68 kg is attached to the other end of the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!