Answer:
No car will slide
Explanation:
Neither car will slide because proper bank does not required frictional forces. To prevent the car from traction through curve, a component of normal forces provides necessary centripetal forces. which prevent them to slide.
No car will slide since both car are going with the proper speed for given banking angle
Answer:
Explanation:
spring constant k = 425 N/m
a ) At the point of equilibrium
restoring force = frictional force
= kx = 10 N
425 x = 10
x = 2.35 cm
b )
Work done by frictional force
= -10 x 2.35 x 10⁻² x 2 J ( Distance is twice of 2.35 cm )
= - 0.47 J
= Kinetic energy remaining with the cookie as it slides back through the position where the spring is unstretched .
= 425 - 0.47
= 424.53 J
=
From the question, we know that after 10 seconds are passed the velocity GOES DOWN.
Based on that, we can infer that the acceleration of the arrow will be negative.
in 10 seconds, the velocity goes down 30 meter/second, (65 - 35)
so it would be 30/10 = -3 m/s/s in the same direction of travel
Answer:
B) alternating current
Explanation:
Alternating currents are different from direct current. These form of currents are used to transport power from generating stations over large distances.
- Alternating current is a current that reverses direction periodically.
- The voltage also reverses and leads to little loss in voltage.
- This current reversal makes them desirable for long distance transmission coupled with the little loss in voltage.
- Transformers used to change the voltage of these wave forms.
- The lesser loss in voltage makes AC desirable for long distance transmission.