Answer: 7 kg bowling ball must move with a speed of 2.8 m/s so that it has the same kinetic energy.
Explanation:
Kinetic energy is the energy possessed by a body by virtue of its motion.
m = mass of object
v= velocity of the object
b) for a 7 kg bowl to have kinetic energy of 27 Joules:
Thus 7 kg bowling ball must move with a speed of 2.8 m/s so that it has the same kinetic energy
We will see it again in <span>28 July 2061.</span>
ANY DENSE OBJECT
A mathematical equation for density is: Density = mass/volume or D = m/v. If something has a large mass compared to its volume, it has a high density. This is like a set of weights which can be small but heavy. But if an object has a small mass compared to its volume it has a lower density.
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Answer:
Explanation:
Given that,
The volume of the cube, V = 24 m³
The density of water, d = 1000 kg/m³
We need to find the buoyant force acting on this cube when it totally submerged in water. The formula for the buoyant force is given by :
Substitute all the values,
So, the required force is equal to 235200 N.