Answer:
it have Potential energy
Explanation:
given data
Drag the pendulum to an angle 30∘
to find out
what form of energy does it have
solution
we know that pendulum start no kinetic energy when it release from any rest position then in starting it have potential energy only so that when pendulum is angle 30∘ at some height from ground so when it start it have potential energy same as in starting.
we know that the total energy is always conserve
so it have potential energy
Hello!! Being so that if a substance has greater density, it will sink, then if it has less density it will float! Ice and Wood will both float because the density in the substances are less than the density in the water. The Bone will sink because the density is .7 g/cm3 over the amount of density the water can hold! Hope this helps!!!! Have a fantastic day!! :)
Answer:
T = 5.45 10⁻¹⁰
Explanation:
Let's use Newton's second law
F = ma
force is the universal force of attraction and acceleration is centripetal
G m M / r² = m v² / r
G M / r = v²
as the orbit is circular, the speed of the satellite is constant, so we can use the kinematic relations of uniform motion
v = d / T
the length of a circle is
d = 2π r
we substitute
G M / r = 4π² r² / T²
T² =
the distance r is measured from the center of the Earth (Re), therefore
r = Re + h
where h is the height from the planet's surface
let's calculate
T² = (Re + h) ³
T =
T = 5.45 10⁻¹⁰
Answer:
It flows in one direction. It goes out the positive side and back into the negative side.
Explanation:
There are images that can help you understand better. I hope this helped a little :)
Answer:
1 km / 15min
Explanation:
The average speed is calculated by simply doing space divided by time so:
2km / 30min that becomes 1km / 15min
Have a good day.