WHICH TYPE OF NUCLEAR WASTE CAN BE MOST SAFELY HANDLED

A package of mass 5 kg sits on an airless asteroid of mass 7.6 × 1020 kg and radius 8.0 × 105 m. We want to launch the package i

Effectus [21]

Answer:

s = 1.7 m

Explanation:

from the question we are given the following:

Mass of package (m) = 5 kg

mass of the asteriod (M) = 7.6 x 10^{20} kg

radius = 8 x 10^5 m

velocity of package (v) = 170 m/s

spring constant (k) = 2.8 N/m

compression (s) = ?

Assuming that no non conservative force is acting on the system here, the initial and final energies of the system will be the same. Therefore

• Ei = Ef

• Ei = energy in the spring + gravitational potential energy of the system

• Ei = \frac{1}{2}ks^{2} + \frac{GMm}{r}

• Ef = kinetic energy of the object

• Ef = \frac{1}{2}mv^{2}

• \frac{1}{2}ks^{2} + (-\frac{GMm}{r}) = \frac{1}{2}mv^{2}

• s = $\sqrt{\frac{m}[k}(v^{2}+\frac{2GM}{r})}$

s = $\sqrt{\frac{5}[2.8 x 10^5}(170^{2}+\frac{2 x 6.67 x10^{-11} x 7.6 x 10^{20}}{8 x 10^5})}$

s = 1.7 m

7 0

3 years ago

The banking angle in a turn on the Olympic bobsled track is not constant, but increases upward from the horizontal. Coming aroun

zlopas [31]

Answer:

the curve inclination is increased so that a weight component helps keep the car on track

Explanation:

In the sledging competition these devices go at quite high speeds over 100 km/h, so when reaching the curves the friction force is not enough to keep the car on the track. For this reason, the curve inclination is increased so that a weight component helps keep the car on track.

In general we can solve Newton's second law for this case, with the condition of no friction, it is found that

V² = r g tan θ

Where V is the maximum velocity, r is the radius of the curve a, θ is the angle of the inclination

8 0

4 years ago

In sexually reproducing animals, once fertilization of the egg takes place, the ___________ exists as a single cell until cell d

RSB [31]

The fertilized egg or the zygote exists as a single cell until cell division.

4 0

4 years ago

What happens to a wave when it is reflected?

STALIN [3.7K]

Answer:

Reflection involves a change in direction of waves when they bounce off a barrier. Refraction of waves involves a change in the direction of waves as they pass from one medium to another. Refraction, or the bending of the path of the waves, is accompanied by a change in speed and wavelength of the waves.

Explanation:

HOPE THIS HELPS!!!!!!❤️

8 0

3 years ago

Read 2 more answers

On a 100m straight track, Zak runs to the 80m mark in 15s. He then runs back to the 20m in 10s. He then runs to the 100m mark in

drek231 [11]

Answer:

The total distance traveled by Zak is 250 m and total displacement is

70 m

Explanation:

Distance is a scalar quantity that represents how much ground an

object has covered during its motion

Displacement is a vector quantity that represents how far out of place

an object is, means the change in its position

Displacement = final position - initial position

The straight track is 100 m

Zak runs to the 80 m mark

That means he runs forward from zero to 80

Then his distance = 80 m

His displacement = + 80 m

He then runs back to the 20 m

That means that he runs back from 80 m to 20 m

Then his distance = 80 - 20 = 60 m

His displacement = 20 - 80 = -60 m

He then runs to the 100 m mark

That means he runs forward from 20 m to 100 m

Then his distance = 100 - 20 = 80 m

His displacement = 100 - 20 = + 80 m

Finally he runs to the 70 m mark

That means he runs back from 100 m to 70 m

Then his distance = 100 - 70 = 30 m

His displacement = 70 - 100 = - 30 m

His total distance is the sum of all distances he runs

The total distance = 80 + 60 + 80 + 30 = 250 m

His total displacements is the sum of all displacements he runs

The total displacement = (+80) + (-60) + (+80) + (-30) = + 70 m

The total distance traveled by Zak is 250 m and total displacement is

70 m

3 0

3 years ago