D determined by its temperature
Answer:
The work done is equal to zero = 0
Explanation:
Let us remember that the definition of physical work is given by the product of force by the displacement of the body.
![Work=F*d\\\\where\\F= force [N]\\d=distance [m]\\replacing\\Work=1115*(0) = 0](https://tex.z-dn.net/?f=Work%3DF%2Ad%5C%5C%5C%5Cwhere%5C%5CF%3D%20force%20%5BN%5D%5C%5Cd%3Ddistance%20%5Bm%5D%5C%5Creplacing%5C%5CWork%3D1115%2A%280%29%20%3D%200)
The centripetal accelaration is increased by a factor of 4
Answer:
speed of water is 0.0007138m/s
Explanation:
From the law of conservation of mass
Rate of mass accumulation inside vessel = mass flow in - mass flow out
so, dm/dt = mass flow in - mass flow out
taking p as density

where,
q(in) is the volume flow rate coming in
Q = is the volume of liquid inside tank at any time
But,
dQ = Adh
where ,
A = area of liquid surface at time t
h = height from bottom at time t
A = πr²
r is the radius of liquid surface

Hence,


so, the speed of water surface at height h

where,
is 75.7 L/min = 0.0757m³/min
h = 1.5m
so,

v = 0.04283 /60
v = 0.0007138m/s
Hence, speed of water is 0.0007138m/s
Answer:
No. He was not the first person who built a microscope. But he made simple (one lens), but the microscopes that he did built were the best ones for that time.