Answer:
the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force.
Explanation:
Answer: Absolute dating can be used to determine the exact age of the rock, and relative dating is used to compare the ages of rocks.
The determination of the exact age of the rock is done by using the properties of atoms. Radioactive atoms decay with specific half-life times, so the half-life of the radioactive atoms along with the measurement of the amounts of materials in the parent and the daughter rocks permits to determine the age of the rock.
Answer:
An initial velocity that is faster than a final velocity
Explanation:
The relationship between velocity and acceleration is given as follow;
Acceleration = Change in velocity / Time
Change in Velocity = Final Velocity - Initial Velocity
From the formular, time is not able to affect the sign of the acceleration.
A negative acceleration is also referred to as deceleration and this occurs when there is a drop in velocity.
A drop in velocity occurs when the initial velocity is faster than the final velocity.
Answer:
Gravitational Force.
Gravitation is the agent that gives weight to objects with mass and causes them to fall on the ground when dropped.
The net ionic equation is
2Ag^+(aq) + SO4^2-(aq) → Ag2SO4 (s)
<h3><u>explanation</u></h3>
write the chemical equation for the reaction
2AgNO3 (aq) + Na2SO4 (aq)→ Ag2SO4 (s) + 2 NaNO3 (aq)
write the ionic equation
2Ag^+(aq) + 2 NO3^- (aq) +2 Na^+(aq) + SO4^2-(aq) → Ag2SO4 (s) +2 Na^+(aq) + 2NO3^-
cancel the spectator ions (NO3^- and Na^+)
the net ionic equation is therefore
= 2Ag ^+(aq) + SO4^2-(aq) → Ag2SO4(s)
