Answer:
Explanation:
Density, 
Where m is the mass of the object and v is the volume of the same object
Given the dimensions, we can make them in mm hence 45 mm by 52 mm by 60 mm
Volume=45*52*60= 140400 mm^{3}
Density, 
Answer: Option (d) is correct.
Explanation:
Given, 1,152 British thermal units
1 British thermal unit = 1055.06 joules
So, in 1,152 British thermal units there will be :
Hence, from the given options the closest answer is of option (d). So, option (d) is correct.
Answer:
190×0.5=95N
Explanation:
The spring constant is 190 N/m . Therefore the force is necessary to stretch a spring 0.5 m when the spring constant is 190 N/m is 95 N
Para hacerlo a m/s un método muy práctico es sólo dividir entre 3.6, por cuestiones de conversiones, lo puedes comprobar.
212 km/hr /3.6 = 58 m/s
Comprobación :
V= d / t
V= 212 m / 18000 seg <---- nota que aquí los segundos son de las 3.1hrs
V= 58 m/seg
Answer:
<u />
- <u> equal to the weight of the fluid that the body displaces</u>
Explanation:
<em />
<em>Archimides' principle </em>states the definition of buoyant force.
These are the imporant features of the buoyant force that you need to know:
- Except for the very special vacuum condition, every body is immersed in a fluid.
- The body is subject, at least, to two forces, its weight and the buoyant force.
- The weight is the result of the gravitational attraction exerted by the planet, and is equal to the mass of the object by the gravitational acceleration (approximately 9.8 m/s² on Earth). It is directed vertically downward.
- The <em>buoyant force </em>is the vertical upward force that the fluid exerts on the object and is equal to the weight of the volume of fluid displaced by the object.
- The volume of fluid that the body displaces is equal to the immersed volume of the body.
