Answer:
To calculate the tension (T) in the spiderweb, we need to consider the forces acting on the spider. Since the spider is hanging motionless, the net force acting on it must be zero. Therefore, the upward force due to tension in the spiderweb must balance the downward force due to the gravitational attraction of the Earth on the spider.
The gravitational force on the spider can be calculated using the formula:
F_gravity = m * g
where m is the mass of the spider and g is the acceleration due to gravity, which is approximately 9.81 m/s^2 on the Earth's surface.
F_gravity = (7.00 x 10^-5 kg) * 9.81 m/s^2
F_gravity = 6.857 x 10^-4 N
Since the spider is hanging motionless, the tension in the spiderweb must be equal and opposite to the gravitational force acting on the spider.
T = F_gravity = 6.857 x 10^-4 N
Therefore, the tension in the spiderweb is 6.857 x 10^-4 N.