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
Deffense [45]
3 years ago
11

Net force of 200 newtons is applied to a wagon for 3 seconds

Physics
1 answer:
AveGali [126]3 years ago
6 0

Momentum of the wagon increases by (200 x 3)

                                                     = 600 newton-sec

                                                     = 600 kg-m/sec
 
You might be interested in
Explain how the thermal energy of an isolated system changes with time if the mechanical energy of that system is constant.​
Naddika [18.5K]

Answer:

Thermal energy of an isolated system changes with time If the mechanical energy of that system is constant according to the first law of thermodynamics, which states that thermal energy of an isolated system can still change as long as the total energy of that system does not change.

Explanation:

6 0
2 years ago
Calculate the standard electrode potential difference (e°) of the daniell cell (at 1 bar) if temperature is 473.15 k.
anzhelika [568]
Missing data in the text of the exercise: The molar concentration of Zinc is 10 times the molar concentration of copper.

Solution:

1) First of all, let's calculate the standard electrode potential difference at standard temperature. This is given by:
E^0=E_{cat}^0-E_{an}^0
where E_{cat}^0 is the standard potential at the cathode, while E_{an}^0 is the standard potential at the anode. For a Daniel Cell, at the cathode we have copper: E_{Cu}^0=+0.34 V, while at the anode we have zinc: E_{Zn}^0=-0.76 V. Therefore, at standard temperature the electrode potential difference of the Daniel Cell is
E^0=+0.34 V-(-0.76 V)=+1.1 V

2) To calculate E^0 at any temperature T, we should use Nerst equation:
E^0(T)=E^0- \frac{R T}{z F} \ln  \frac{[Zn]}{[Cu]}
where 
R=8.31 J/(K mol)
T=473.15 K is the temperature in our problem
z=2 is the number of electrons transferred in the cell's reaction
F=9.65\cdot 10^4 C/mol is the Faraday's constant
[Zn] and [Cu] are the molar concentrations of zinc and in copper, and in our problem we have [Zn]=10[Cu].
Using all these data inside the equation, and using E^0=+1.1 V, in the end we find:
E^0(T)=E^0- \frac{R T}{z F} \ln \frac{[Zn]}{[Cu]}=+1.053 V
8 0
2 years ago
according to newtons first law of motion, what will an object in motion do when no external force acts on it?​
shutvik [7]

Answer:

The object will not move.

Explanation:

If nothing pushes against it it will not move. If its not on a slant it will not move.

4 0
2 years ago
Read 2 more answers
Two charges repel each other with a force. If the magnitude of both charges double, but the distance between them remains consta
-Dominant- [34]

Answer:

C.

Explanation:

4 0
3 years ago
Suppose the green car was traveling at 0 miles the white car was traveling at 70 miles at the red car was trailing at 22 miles w
Elan Coil [88]

Answer:

The white car will cover the most distance every second.

Explanation:

The formula for the uniform speed of an object is given as follows:

s = vt

where,

s = distance covered by the object

v = speed of the object

t = time required

Now, if we assume time to be  constant at 1 s. Then the distance covered by each car will be directly proportional to the speed of the car. Hence, the car with the greatest speed will travel the greatest distance in 1 second.

We, have:

Speed of white car > Speed of red car > Speed of green car

<u>Therefore, the white car will cover the most distance every second.</u>

5 0
2 years ago
Other questions:
  • In a chemical reaction, activation energy increases the __________ of the reactants. This outcome causes the particles to collid
    13·2 answers
  • What is the highest energy photon that can be absorbed by a ground-state hydrogen atom without causing ionization?
    11·1 answer
  • In fig. 30.11, suppose that and with switch open, switch is left closed until a constant current is established. then is closed
    14·1 answer
  • Elizabeth, with a mass of 56.1kg stands on a scale in an elevator. Total mass of elevator plus Elizabeth=850kg. As the elevator
    7·1 answer
  • What is the relationship between distance of the objects and the gravitational force between them? (Another way of asking: What
    15·1 answer
  • Heat flows from __________ energy to __________ energy.<br> A. higher, lower<br> B. lower, higher
    10·1 answer
  • a student in your class says "electromagnetic waves can travel through outer space but mechanical waves can’t.” is it this stude
    9·1 answer
  • Friction _____moving things and turns motion energy into _____
    9·1 answer
  • What is the volts for a cord that has a current of 18 and resistance of 2 ohms
    9·1 answer
  • What are the advanced warning systems for hurricanes, and how do they work?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!