Answer:
Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance.Jan 15, 2020 whhdbd dhd dvd s bs sbs shs shs sh s
Explanation:
avsvsyxsgzvs zvx shs dhx xbx dhd dvd dj
Answer:
2.23 m/s²
Explanation:
mass of sail boat, m = 20600 kg
Force along east, F1 = 17700 N
Force along north west, F2 = 60000 N
write the forces in vector form
Net force acting on the boat
The magnitude of net force is given by
F = 45922 N
Acceleration = force / mass
a = 45922 / 20600
a = 2.23 m/s²
The volume occupied by three milliliters of water is the same as three cubic centimeters of water is true. The conversion is as follows.
3mL (1 L/1000 mL) (1 m3/1000 L) (100 cm/1 m)^3 = 3 cm3
B: a change in size
C: a change in color
D: the formation of a liquid
E: the formation of a precipitate
The indicators that a chemical reaction is occurring include:
A: the formation of bubbles
C: a change in color
D: the formation of a liquid
E: the formation of a precipitate are all correct
Formation of Bubbles (Gas Evolution): The production of gas bubbles can signify a chemical reaction. This often happens when reactants combine to release a gaseous product, such as in the reaction of an acid with a carbonate, producing carbon dioxide.
Change in Color: A noticeable change in color can indicate a chemical reaction. It suggests that the arrangement of atoms in the molecules has changed, leading to the absorption or emission of specific wavelengths of light.
Formation of a Precipitate: A precipitate is an insoluble solid formed when two solutions are mixed. It suggests that a chemical reaction has occurred because the reactants have combined to create an insoluble product.
The indicators that a chemical reaction is occurring include all the following
the formation of bubbles, a change in color, the formation of a liquid and the formation of a precipitate
These are common signs of a chemical reaction. A change in size can also be an indicator in some cases, especially if it accompanies the formation of a gas (bubbles).
Learn more about chemical reaction here
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-The momentum of player A is greater than that of player B.
-The momentum of player A is less than that of player B.
Answer:
the momentum of player A is greater than player B.
Therefore, Option 2 is correct.
Step-by-Step explanation:
We have been given the velocity of the players and mass of the players.
Player A:
Velocity is 5m/hr
Mass 210 pounds
Player B:
Velocity is 3m/hr
Mass 190 pounds
We have a formula for momentum:
p is momentum
m is mass
v is velocity
We will find momentums for both the players:
Momentum of player A:
on substituting the values we get:
Momentum of player B:
on substituting the values we get:
Hence, the momentum of player A is greater than player B.
Therefore, Option 2 is correct.
The equation for momentum is p = mv where p is the omentum, m is the mass and v is the velocity. Calculating the momentum for each football player, player A will have a momentum of 1050 lb-mi/h and player B will have a momentum of 570 lb-mi/h. Therefore, momentum of player A is greater than that of player B.
Answer: 90 degrees
Explanation:
The projectile will have the greatest air time and height when the launch is the most vertical. At 90 degrees, the launch is all vertical.