Answer:
79.38 J
Explanation:
W = mgz = 4.5*9.8*1.8 (with g = 9.8 m/s^2)
= 79.38 K
Answer:
The law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products.
Explanation:
Answer:
the faster an object moves the more kinetic it has. the more mass an object has, the more kinetic energy it has.
The pressure reading for the butane tank is higher than that for the propane tank is False.
The pressure readings will change when more liquid is added to the tanks is False.
If the tanks are placed outside and the sun warms each tank to 46 , the pressure readings will be higher than they were initially is True
If an equal number of moles of gas is allowed to escape rapidly from each tank, the temperature of the butane tank will be lower than that of the propane tank is True.
Answer:
Explanation:
Since we know that the displacement of the boat in the direction of flow of the river must be zero
so we have to at such an angle with shore so that the component of velocity of boat along the direction of flow must be equal and opposite to the flow velocity of the water
so we will have
Now the resultant velocity of the boat is in perpendicular to the flow of water
so we will have