Answer:
yes nucleus is found in plant and animal cells.
Hope this helps :)
Answer:
10 m/s
Explanation:
The speed of a wave is given by

where
is the wavelength
f is the frequency
For the wave in this problem,
- The frequency is given by the number of oscillations per second, so

- The wavelength is

So, the wave speed is

Answer: Weight = 98.1N
Explanation:
Density of water = 1000 kg/m^3
Given that the Plastic foam is about 0.10 times as dense as water. That is,
Density of plastic foam = 0.1 × 1000 = 100kg/m^3
The volume V = 1 ×1×0.1 = 0.1 m^3
Density is the ratio of mass to volume
Density = mass/volume
Let us substitute for density and volume to get mass.
100 = M/0.1
Make M the subject of formula
M = 100 × 0.1 = 10 kg
Weight = mg
Where g = 9.81 m/s
Substitute the M and g into the formula
Weight = 10 × 9.81 = 98.1 N
Therefore, the weight of the brick is 98.1 N
kinematic equation
v^2=u^2+2*a*s
7.4^2=8^2-2*5.6^2*width
(7.4^2-64)/(2*5.6^2)=-width