Answer:


Explanation:


if t=3.6s and initial velocity, v0, is -5m/s


if t=3.6s and the initial displacement, s0, is -8m:

Answer:
40 J
Explanation:
q = magnitude of charge on the old bead = 2.0 C
U = Electric potential energy of old bead at point A = 20 Joules
V = Electric potential at A
Electric potential energy is given as
U = q V
20 = (2.0)V
V = 10 volts
Electric potential at point A remains unchanged when new bead of charge 4.0 C is placed there
q' = magnitude of charge on new bead = 4.0 C
V = Electric potential at A = 10 volts
U' = Electric potential energy of new bead at point A
U' = q' V
U' = (4.0) (10)
U' = 40 J
Answer:
= 3.8 m/s
Explanation:
When the runner start the running, she is at rest. So the initial velocity of the runner is zero (0 m/s). And then she accelerates at a rate of 1.9 m/s² for 2.2 s. But we need to find the final velocity after t = 2 s when she starts the running. So, we take time equal to 2 second.
Given data:
Initial velocity =
= 0 m/s
Acceleration = a = 1.9 m/s² (for 2.2 s after starting the race)
Time = t = 2 s
Final velocity =
= ?
According to the First equation of motion
=
+ at
= 0 + (1.9)(2)
= 3.8 m/s
Answer:
Atmospheric pressure is caused by the gravitational attraction of the planet on the atmospheric gases above the surface and is a function of the mass of the planet, the radius of the surface, and the amount and composition of the gases and their vertical distribution in the atmosphere
Explanation: