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2 years ago

Are outer planets gaseous

Physics

1 answer:

bija089 [108]2 years ago

6 0

Answer:

Yes

Explanation:

The four outer planets are all gas giants made primarily of hydrogen and helium. They have thick gaseous outer layers and liquid interiors.

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The truck is accelerating at a rate of +1.50 m/s2. The mass of the crate is 120-kg and it does not slip. The magnitude of the di

trapecia [35]

Answer:

The work done by the friction force is 11700J

Explanation:

The work done by the friction force is given by:

$Wfs=fs*cos(\theta)*d\\Wfs=fs*cos(0)*65m$

According to Newton's second law:

$f=m*a\\fs=120kg*1.50m/s^2=180N$

So:

$Wfs=180N*65m\\Wfs=11700J$

8 0

2 years ago

Two protons are released from rest, one from location 1 and another from location 2. When these two protons reach location 3, th

BaLLatris [955]

Answer:

76.66V

Explanation:

Accorging to law of conservation of energy:

$\Delta E=0\\E_f=E_i\\K_f+U_f=K_i+U_i$ }

Since the protons are released from rest, the initial kinetic energy is zero and the electric potencial energy is given by: $U=qV$

Now from $U_f-U_i=-K_f$ , we have:

$U_3-U_1=-K_1\\q(V_3-V_1)=-\frac{mv_1^2}{2}\\U_3-U_2=-K_2\\q(V_3-V_2)=-\frac{mv_2^2}{2}\\$

Recall that $v_1=2v_2$ , replacing:

$q(V_3-V_1)=-\frac{m(2v_2)^2}{2}\\q(V_3-V_1)=-\frac{4mv_2^2}{2}\\q(V_3-V_1)=-4K_2(1)\\q(V_3-V_2)=-K_2(2)$

Rewriting (1) for $-K_2$ :

$q(V_3-V_1)=-4K_2\\-K_2=\frac{q(V_3-V_1)}{4}(3)\\$

Now, equaling (2) and (3):

$q(V_3-V_2)=\frac{q(V_3-V_1)}{4}$

Finally, rewriting for $V_3$

$(V_3-V_2)=\frac{V_3-V_1}{4}\\4V_3-4V_2-V_3=-V_1\\3V_3=4V_2-V_1\\V_3=\frac{4V_2-V_1}{3}\\V_3=\frac{4(115V)-231V}{3}\\V_3=76.66V$

6 0

3 years ago

A quarterback takes the ball from the line of scrimmage, runs backward for 12.1 yds, then runs sideways parallel to the line of

Over [174]

Answer:

The answer is 35.45 yds

Explanation:

You have to picture this to be able to understand it better (see attachment).

Start at the origin which is when the quarterback (QB) takes the ball. He runs backwards 12.1 yards, runs sideways for 19.8 yards (it doesn´t matter if he runs right or left), then he throws the ball forward 41.5 yards. If you look at the attachment, you can see I drew the path that the football followed. And then connected the dots from the origin and finish. The distance between those two points is the magnitude of the resultant displacement.

In order to calculate it, all you need to do is use the Pythagoream theorem, which says that the square of the hypotenuse equals the sum of the squares of the legs a and b of the triangle rectangle.

$R^{2} = a^{2} + b^{2}$ then solve for R
$R = \sqrt{a^{2}+b^{2} }$

In this case, you know the length of leg a to be 19.8 yards which how much it moves sideways. And then, to get the length of leg b, all you need to do is substract how much it moved backwards from the 41.5yards forward displacement. This results in b leg being 29.4 yards long.

Now you have a triangle with:

a = 19.8 yards
b = 29.4 yards

Substituting this numbers in the equation:

$R = \sqrt{19.8^{2}+29.4^{2} }$
R = 35.45 yards

3 0

2 years ago

Please Help Me And Also Remember To Number The Answer

Anastasy [175]

The pace at which an object's momentum changes is defined by force. Momentum is the motion of an item. When an item moves with double the velocity, its momentum doubles. As you change the speed of an object, the force causes it to change momentum. So momentum is the product of force and time.

1. Momentum = 100kg.m/s

Momentum is the motion contained in any object/ mass and is simply the product of mass and velocity

So momentum = mass × velocity

Momentum = 25× 4

= 100kg.m/s

2. As, we know momentum = mass × velocity

that is p = mv

we have momentum (p) = 2 kg m/s and velocity (v) = 8 m/s

so substitute values in p=mv

2 kg m/s = m × 8 m / s

m = 2 / 8 kg = 0.25 kg

Therefore, mass of substance is 0.25 kg.

3. Momentum(M) = mass(m) x velocity(v)

Given: mass(m) = 25 kg and momentum(M) = 125 (kgxm)/sec

125 = 25 x v

v = 5 m/sec

The car is going 5 m/s

4. Weight = 1.4 N

we need to calculate mass first,

mass = weight / g

mass = 1.4 / 9.8

= 0.142 kg

momentum = mass × velocity

momentum = 0.142 × 44.7

Momentum = 6.3474 kg m/s

For 1. Momentum = 100kg.m/s, 2. mass of substance is 0.25 kg, 3. The car is going 5 m/s, 4. Momentum = 6.3474 kg m/s

Learn more about momentum here

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8 0

10 months ago

An electric iron is used to remove wrinkles from clothing. The electric iron is made of metal. Which property of this substance

Volgvan

The metal's ability to conduct heat and become an evenly heated surface relatively quickly makes it useful for ironing. An uneven heat distribution is more likely to produce hot and cold patches, resulting in burnt clothes. Moreover, if the metal didn't conduct electricity well, the heating element would have to use more energy to produce the same amount of heat in the iron.

4 0

3 years ago