Answer:
5.1m
Explanation:
Use the fourth key equation of accelerated motion
vf^2=vi^2+2aΔd
we know vf is = 0 because that is when the ball reaches it's peak (not going up anymore)
0=vi^2+2aΔd
and we can rearrange for Δd, which is what you need
-vi^2=2aΔd
Δd = -vi^2/2a
Now we can plug in the values
Δd = -vi^2/2a
Δd = -(10m/s)^2/2(-9.8)
Δd = -100/-18.6
Δd = 5.10m
Density(rho) = m/v
(1.3)/((3.2)(17.1)(3.8))
since density is given in kg/m^3 you should convert the blocks dimensions to meters
1.3/(0.032*0.038*0.171)
plugging in these numbers would give you the density
1.3/0.000208
6250
with sigfigs= 6300kg/m^3
Astronomers discover an exoplanet, a planet orbiting a star other than the sun, that has an orbital period of 4.50 earth years in a circular orbit around its star, which has a measured mass of 3.60×1030 kg.
The length of time it takes an astronomical object to complete one orbit around another object is known as the orbital period (also known as the revolution period). In astronomy, it typically refers to bodies like planets or asteroids revolving about the Sun, as well as moons circling other stars, exoplanets, and double stars.
A year refers to the orbital period of the Earth. A day is a period of rotation. 24 hours make up a solar day, although the Earth rotates around the sun by one degree every day. We can determine the orbital period by noting the interval between transits. If the mass of the orbiting star is known, one may use Kepler's Third Law to calculate the orbital radius of the planet (R3=T2Mstar/Msun; the radius is in AU and the period is in earth years).
To learn more about orbital period please visit -
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Answer:
True
the reason why I chose tire is because when you put a straw in a cup of water the water refract or bend
Answer:
the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
Explanation:
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever.