A taxi starts from Monument Circle and travels 5 kilometers to the east for 5 minutes. Then it travels 10 kilometers to the sout
2 answers:
Answer:
Average Velocity changes
Average Speed Remains same
Explanation:
As we know that average speed is the ratio of total distance moved by the object in given interval of time
So initially we know that the distance moved by the car is 5 km in 5 min towards East
So we have average velocity
Towards East
Now in other case it moved 10 km in next 10 min
so its average velocity is given as
Towards South
Since direction of motion changes here so Average velocity is changing while average speed will remain the same
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Answer:
Normal force = 8.75 N
Explanation:
given,
frictional force between the steel spatula and the Teflon frying pan=0.350 N
coefficient of friction between material =0.04
normal force = ?
using formula,
Frictional force = coefficient of friction × normal force
Normal force = 8.75 N
Answer:
E = 77532.42N/C
Explanation:
In order to find the magnitude of the electric field for a point that is in between the inner radius and outer radius, you take into account the Gauss' law for the electric flux trough a spherical surface with radius r:
(1)
Q: net charge of the hollow sphere = 1.9*10-6C
ε0: dielectric permittivity of vacuum = 8.85*10^-12 C^2/Nm^2
Furthermore, you have that the net charge contained in a sphere of radius r is:
(2)
with the charge density is:
(3)
r2: outer radius = 0.31m
r1: inner radius = 0.105m
The electric field trough the Gaussian surface is parallel to the normal to the surface, the, you have in the integral of the equation (1):
(4)
where you have used the expression for a surface of a sphere.
Next, you replace the expressions of equations (2), (3) and (4) in the equation (1) and solve for E:
you replace the values of all parameters, and with r = 0.17m
The magnitude of the electric field at a distance r=0.17m to the center of the hollow sphere is 77532.42N/C