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Zolol [24]
2 years ago
8

8. What was the major sticking point holding up progress in the Doha Round?

Physics
1 answer:
pogonyaev2 years ago
8 0

Answer:

opening up agricultural and industrial markets in various countries and how to cut rich nation farm subsidies

Explanation:

.

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At a certain instant, the earth, the moon, and a stationary 1160 kg spacecraft lie at the vertices of an equilateral triangle wh
Afina-wow [57]

Answer:

W = 1.22 \times 10^9 J

Explanation:

Initial potential energy of the given spacecraft is given as

U = -\frac{GM_e m}{r} - \frac{GM_m m}{r}

so we have

U = - \frac{Gm}{r}(M_e + M_m)

so we have

M_e = 5.98 \times 10^{24} kg

M_m = 7.35 \times 10^{22} kg

m = 1160 kg

r = 3.84 \times 10^8 m

U = - \frac{(6.67 \times 10^{-11})(1160)}{3.84 \times 10^8}(5.98 \times 10^{24} + 7.35 \times 10^{22})

U = -1.22 \times 10^9 J

now total work done to move it to infinite is given

W = 0 - U

W = 1.22 \times 10^9 J

6 0
3 years ago
Which type of rock would form from a lava following a volcanic eruption
melisa1 [442]

When lava reaches the surface of the Earth through volcanoes or through great fissures the rocks that are formed from the lava cooling and hardening are called extrusive igneous rocks. Some of the more common types of extrusive igneous rocks are lava rocks, cinders, pumice, obsidian , and volcanic ash and dust.

5 0
4 years ago
A nail is hit with a hammer. Which type of contact force has been applied?
Mademuasel [1]
Applied force I think.

5 0
3 years ago
Read 2 more answers
(a) A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32º ramp at a speed
stiks02 [169]

a) 7 buses

b) 6.8 m

Explanation:

a)

The motion of the motorcycle is a projectile motion, so it consists of 2 independent motions:

- A uniform motion along the horizontal direction

- A uniformly accelerated motion along the vertical direction

The initial components of the velocity of the motorcycle are:

v_x = u cos(32^{\circ})=(40.0)(cos 32^{\circ})=33.9 m/s\\v_y = u sin(32^{\circ})=(40.0)(sin 32^{\circ})=21.2 m/s

The equation for the vertical motion of the motorcycle is

y=h+u_y t - \frac{1}{2}gt^2

where

y is the altitude at time t

h is the initial height

g=9.8 m/s^2 is the acceleration due to gravity

The bus top is at the same height of the initial ramp, so we have

y=h

And therefore, we can solve the equation for t, to find the time of flight:

0=u_y t - \frac{1}{2}gt^2\\t(u_y-\frac{1}{2}gt)=0\\t=\frac{2u_y}{g}=\frac{2(21.2)}{9.8}=4.33 s

Now we find what is the horizontal distance covered by the motorcycle in its jump, which is given by:

d=v_x t = (33.9)(4.33)=146.8 m

And since each bus has a length of L = 20.0 m, the number of buses that the motorcycle can clear with its jump is:

n=\frac{d}{L}=\frac{146.8}{20}=7.34

So, 7 buses.

b)

In the previous problem, we saw that the total range of the motion of the motorcycle is

d=146.8 m

And we said that this corresponds to 7 buses.

Each bus has a length of

L = 20 m

So, the total length of 7 buses is

L' = 7L=7(20)=140 m

Therefore, the range of the motorcycle is greater than the length of the buses by:

\Delta x = d-L'=146.8-140 = 6.8 m

which means he will miss the last bus by 6.8 meters.

6 0
3 years ago
A 100 N box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational
nika2105 [10]

B is the Answer 50 N


6 0
3 years ago
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