Answer:
The question implies that force of friction is 2.1E4 N
F = M v^2 / R frictional force needed to supply this centripetal force
2.1E4 = M v^2 / R
v^2 = R * 2.1E4 / M
v^2 = 120 * 2.1E4 / 2.5E3 = 1200 * 2.1 / 2.5 = 1008 m^2/s^2
v = 31.7 m/s max speed of truck (about 70 MPH)
Answer:
d. All three statements are true.
Explanation:
In the metals the electrons are the charge carriers and they are the only mobile charges causing the flow of current when subjected to potential difference.
The electrons being negatively lead to the flow of current in opposite direction. The direction of the current is opposite to the direction of the negative charges.
Answer:
Answer: C
Explanation:
The closer the city is by the ocean, the cooler it will get because of the winds it is created from the ocean. Meanwhile, Atlanta is slightly away from the ocean but wont be as cool as the Tybee Island. So the heat will hit more to the city away from the ocean.
Answer: Manipulating a constraint at any given time may produce a __functional ________ change in movement. However, in motor development, we are most concerned with changes in movements over time, particularly ones that become more __permanent __________.
Explanation:
Functional movements focuses on real-world situational biomechanics. They usually involve multi-planar, multi-joint movements which place demand on the body's core musculature and innervation.
Motor development focuses on a child's bones, muscles and ability to move around the environs. Motor development can be divided into two sections: gross motor development and fine motor development.
Answer:
Explanation:
Given
initial height
coefficient of static friction
When collision is elastic respective velocities after collision is
where and =initial velocities of object
and final velocities of object
using
(b)Completely Inelastic
In Completely Inelastic objects stick with each other
using