Answer:
3.94784176044N/m
Explanation:
The period of a spring is found using the formula T=2π, where m is the mass and k is the spring constant.
The period can also be found using the formula T=, where f is the frequency.
T=T
∴2π=
2π=1/0.1
=10/2π
10/k=1.59154943092²
10/2.53302959106=k
k=3.94784176044N/m
.
That depends on WHERE the rig is, because
weight = (mass) x (acceleration of gravity where the object is) .
-- If the truck is on Mars, then
Weight = (36,000 kg) x (3.71² m/s²) = 133,560N.
-- If the truck is on the moon, then
Weight = (36,000 kg) x (1.62 m/s²) = 58,320N.
-- If the truck is on Earth, then
Weight = (36,000 kg) x (9.81 m/s²) = 353,160N.
It all depends.
Answer:
(c) The planet must have a mass about the same as the mass of Jupiter,
(d) The planet must be closer to the star than Earth is to the Sun.
Explanation:
Astrometry is the ideal method to detect high-mass planets that are close to their star. That is because the gravitational effect that it will have the planet over its host star will be greater. This effect can be seen as a wobble in the star as a consequence of how they orbit a common center of mass¹. The center of mass will be closer to the most massive object, So, in the case of an extrasolar planet with masses like Jupiter (Jovian), this point will be a little bit farther from the star, making the wobble more notable than in a system with a low-mass planet.
Key terms:
Astrometry: study of the position of the stars over time in the sky.
¹Center of mass: a geometrical point in which the mass from a whole system is summed.
Answer:
1 and 3
Explanation:
At the point of hitting the tennis ball by the racquet, the force by the hit is acting on the ball.
Since there is a strong wind, the force exerted by the air will act on the tennis ball as it journeys to the ground in the opponents court.
Also, since the tennis ball undergoes a downward motion before it touches the ground, a downward force of gravity also acts on the ball.
After the tennis ball has left contact with the racquet, the force by the hit ceases to act on the ball since they are no longer in contact. However, <em>the downward force of gravity and the force exerted by the air still act on the tennis ball before it touches the ground. </em>
Therefore, the correct choice is:
1 and 3
A lower, easier gear, with the smaller chain ring up front and a largercog in the back, lets you accelerate faster.