Answer:
23.6 m
Explanation:
We are given that
Mass of ball, m=7.0 kg
Force, F=810 N
Distance, s=2.0 m
We have to find the height of ball from the point where it releases.
Work done=K.E
Substitute the value
K.E=P.E
Where g=
Answer:
-64.0 m/s²
Explanation:
v = 32.0 t − 2.00 t³
Acceleration is the derivative of velocity.
a = dv/dt
a = 32.0 − 6.00 t²
At maximum displacement, v = 0 and a < 0.
v = 0
32.0 t − 2.00 t³ = 0
2.00 t (16.0 − t²) = 0
t = 0 or 4.00
When t = 0 s, a = 32.0 m/s².
When t = 4.00 s, a = -64.0 m/s².
The maximum displacement is at t = 4.00 s. Therefore, the acceleration at that moment is -64.0 m/s².
Answer:
a) Maximum potential of the dome = 724.5kV
b) Maximum charge on the dome = 13.9 micro Coulomb
Explanation:
Diameter of the dome = 34.5 cm =34.5/100 = 0.345 m
Radius of the dome = Diameter/2 = 0.345/2 = 0.1725 m
Electric field strength, E = 4.20 * 10⁶V/m
a) Maximum potential of the dome, V = E*r
V = 4.20 * 10⁶ * 0.1725
V = 724500 Volts = 724.5kV
b) Maximum charge on the dome
V = kQ/r
Q = Vr/k
Q = (724500 * 0.1725)/(9*10⁹)
Q = 1.39 * 10⁻⁵C
Q = 13.9 micro Coulomb
Answer:
c. the location of Earth in its orbit.
Explanation:
It is known that the earth orbits the sun once every 365 days, during this time the<u> constellations that are visible in the sky are changing</u>.
This is due to the fact that depending on the position, we have access to different parts of the celestial tomb, that is, the stars and constellations visible from earth.
This is why Orion is visible in winter but not in summer, since in summer it is in a <u>different part of the orbit</u> and with visibility towards different constellations.
the answer is c. the location of Earth in its orbit.
Answer:
mass
Explanation:
the matter is measured in kg or lb and we can use a scale in order to obtain it. This parameter is called "the mass of an object"
