Answer:
D. 9 N
Explanation:
The tension on the string is equivalent to the centripetal force.
Centripetal force is the force exerted by an object in circular motion or path towards the center of the circular path.
Centripetal force = mv²/r
where m is the mass of the object, v is the velocity and r is the radius of the circular path.
Centripetal force = (0.25 kg × 6²)/ 1
= 9 N
Thus, the tension on the string is 9 N
Hey there!
Here is your answer:
<u><em>The proper answer to this question is "Earth, and Mercury".</em></u>
Reason:
<u><em>Mercury</em></u><span><u><em> has a density of 5.427 g/cm³</em></u>
<u><em>&</em></u>
</span><span><u><em>Earth has a density of 5.515 g/cm^3</em></u></span><u><em /></u>
<em>Therefore the dense planet is Earth.</em>
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
Answer:
Geography is divided into two main branches: human geography and physical geography. There are additional branches in geography such as regional geography, cartography, and integrated geography....
hope it helps please follow
Answer:
for -12db
for 3db
for 10db
for 0db
Explanation:
The decibel is a logaritmic value given by:
we use 10 for power values and 20 for other values such voltages or currents.
for -12db
for 3db
for 10db
for 0db
Answer:
Explanation:
In an electric field E force on charge q
F = Eq , acceleration a = Eq / m
a = 664 x 1.6 x 10⁻¹⁹ / 1.67 x 10⁻²⁷
= 636.16 x 10⁸ m /s²
b )
initial velocity u = 0
final velocity v = 1.46 x 10⁶ m/s
v = u + at
1.46 x 10⁶ = 0 + 636.16 x 10⁸ x t
t = 2.29 x 10⁻⁵ s
c )
s = ut + 1/2 a t²
= 0 + .5 x 636.16 x 10⁸ x ( 2.29 x 10⁻⁵ )²
= 1668 x 10⁻²
= 16.68 m
d )
Kinetic energy = 1/2 m v²
= .5 x 1.67 x 10⁻²⁷ x ( 1.46 x 10⁶ )²
= 1.78 x 10⁻¹⁵ J .
