Answer:
The Force exerted by the two objects will be same and 4,401,189.49 × 10−11 N
Explanation:
Let m1 be the mass of the first object and m2 be the mass of the second object and the distance between them be d. Then
m1= 181kg
m2= 712 kg
d= 0.442 m
G is the gravitational Constant
According to Newtons Law Gravitational Force is given by
F=G m1 m2 /d²
F= 6.672 × 10−11 ×181×712/(0.442)²
F= 859,576.24 × 10−11/0.195364
F= 4,401,189.49 × 10−11 N
The Force exerted by the two masses on the third mass will be same and 4,401,189.49 × 10−11 N
Given:
f1 = 20 Hz
f2 = 20000 Hz
speed of sound at 20 degrees celcius = 343 m/s
Solution:
for f1 = 20 Hz,
Using the equation:
lambda = speed of sound / f1 = 343 / 20 = 17.15 m
For f2:
lambda = speed of sound / f2 = 343 / 20000 = 0.01775 m
Therefore the wavelength range of audible sound in air would be 17.15 m to 0.01775 m.
Answer:
The power of the bulb is reduced to a quarter
Explanation:
The power in an electrical circuit is
P = V I = I² R
If the dimmer cuts the current in half
I = I₀ / 2
The resistance of the light bulb after hot is little affected by small changes in the current
We substitute in the equation
P = I₂ R
P = (I₀ /2)² R
P = ¼ I₀² R
P = ¼ P₀
The power of the bulb is reduced to a quarter
Explanation:
Chemical bonding results from attractive forces that joins chemical species.
- Noble gases show no tendency to combine with themselves or with other kinds of atoms because of their completely filled outer energy levels.
- The driving force for most interatomic bonding is the tendency to have completely filled outer energy levels just like the inert gases.
- The stable configuration can be attained by losing or gaining of electrons or sharing of pairs of electrons.
Two examples of how bonds form:
Bonds can be formed by:
- Losing and gaining of electrons to form electrovalent or ionic bonds.
- Sharing of electrons to form covalent bonds.
Learn more:
Ionic bonds brainly.com/question/6071838
#learnwithBrainly
Hi =D
The answer is D. This is how i figured it out. pV = n R T => if pressure is constant => p = n R T / V = const. => p / n R = T/ V = const. => T / V = const. T1 = 333 K T2 = 533 K V1 = 0.2 m3 T1 / V1 = T2 / V2 => V2 = V1 x T2 / V2 = 0.2 x 533 / 333 = 0.32 m^3.
Hope this is what your looking for.
