Answer:
Explanation:
The force exerted on a charged particle due to a magnetic field is given by:
where
q is the charge of the particle
v is the velocity of the particle
B is the magnetic field strength
is the angle between the directions of B and v
In this problem we have:
is the charge of one honey bee
is the velocity of the bee
is the average strength of the Earth's magnetic field
, because the bee flies east to west while the Earth's magnetic field is south to north
Substituting into the equation, we find:
Answer:
<h2>4900 J</h2>
Explanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
GPE = 5 × 9.8 × 100
We have the final answer as
<h3>4900 J</h3>
Hope this helps you
C is not mechanical weathering. It is chemical weathering.
Answer:
9.6 km/h
Explanation:
20 minutes=1/3 minute.
The speed of the bicycle: 3.2:1/3=9.6 km/h.
Answer: 9.6 km/h
<h2>
Answer: Toward the center of the circle.</h2>
This situation is characteristic of the uniform circular motion , in which the movement of a body describes a circumference of a given radius with constant speed.
However, in this movement the velocity has a constant magnitude, but its direction varies continuously.
Let's say 
is the velocity vector, whose direction is perpendicular to the radius 
of the trajectory, therefore
the acceleration 
is directed toward the center of the circumference.
