Answer:
26.5m/s²
Explanation:
Given parameters:
Tangential velocity of the object = 23m/s
Radius of track = 20m
Unknown:
Acceleration = ?
Solution:
The acceleration of the body is its centripetal acceleration. It is given by;
a =
v is the tangential velocity
r is the
a = = 26.5m/s²
Answer:
The water would weigh 25.04 pounds.
Explanation:
Mass = volume × density
Given;
Volume of water = 3 gallons of water
Density of water = 1000kg/m^3
Converting the density to pounds per gallon.
Density = 1000kg/m^3 × 2.205pounds/kg × 1/264.172gallon/m^3
Density = 8.347 pounds/gallon
Therefore, the mass can be calculated as;
Mass = 3 gallons × 8.347pounds/gallon
Mass = 25.04 pounds
Therefore, the water would weigh 25.04 pounds.
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Hope i helped!:)
the force that the planet exerts on the moon is equal to the force that the moon exerts on the planet
Explanation:
In this problem we are analzying the gravitational force acting between a planet and its moon.
The magnitude of the gravitational attraction between two objects is given by
where
:
is the gravitational constant
m1, m2 are the masses of the two objects
r is the separation between them
In this problem, we are considering a planet and its moon. According to Newton's third law of motion,
"When an object A exerts a force (action force) on an object B, then object B exerts an equal and opposite force (reaction force) on object A"
If we apply this law to this situation, this means that the force that the planet exerts on the moon is equal to the force that the moon exerts on the planet.
Learn more about gravitational force:
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brainly.com/question/12785992
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