What sphere on earth includes mountains

When a bicycle tire gets mud on it, the tire becomes slippery. What does the mud do to the tire? A. Increases the force of gravi

Flura [38]

The answer to this is C.

7 0

3 years ago

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5.00 kg of liquid water is heated to 100.0 °C in a closed system. At this temperature, the density of liquid water is 958 kg/m3.

user100 [1]

Answer:

$1.04\times 10^7\ J.$

Explanation:

In the question given :

Pressure is constant

Therefore, Work done, $W=P\times\Delta V$

Pressure, P=1.01 × 105 Pa.

Final volume, $V_f=8.50\ m^3.$

Initial volume, $V_i=\dfrac{Mass}{density}=\dfrac{5}{958}=5.22\times10^-3\ m^3.$

Therefore, W=8.58\times 10^{5}\ J.

Also, Heat Given, $Q=m\times L=5\times 2.26\times 10^{6}\ J=1.13\times 10^7\ J.$

Also, according to First law of thermodynamics:

$\Delta U=Q-W=(1.13\times 10^7)-(8.58\times 10^5)=1.04\times 10^7\ J.$

Hence, this is the required solution.

8 0

3 years ago

A 15,000 N truck starts from rest and moves down a 15∘ hill with the engine providing a 8,000 N force in the direction of the mo

GenaCL600 [577]

Answer:

$v_f = 27.9 m/s$

Explanation:

Component of the weight of the truck along the inclined plane is given as

$F_1 = W sin\theta$

$F_1 = 15000 sin15$

$F_1 = 3882.3 N$

also the engine is providing the constant force to it as

$F_2 = 8000 N$

now the net force along the the plane is given as

$F_{net} = 8000 + 3882.3$

$F = 11882.3 N$

mass of the truck is given as

$m = \frac{w}{g} = 1529 kg$

now the acceleration is given as

$a = \frac{F}{m}$

$a = 7.77 m/s^2$

now the speed of the truck after travelling distance of d = 50 m is given as

$v_f^2 = v_i^2 + 2 a d$

$v_f^2 = 0 + 2(7.77)(50)$

$v_f = 27.9 m/s$

7 0

3 years ago

Explain the method to measure the external diameter of a sphere

Anton [14]

Answer:

The sphere is that the circular objects in the two-dimensional space (1) circle

(2) disk. Two-dimensional space is a set of points and the distance of that point, The two points of Sphere that length and center.

The sphere can be constructed as the name of surface form circle about any diameter. The circle is the special type of the revolution replacing the circle,

the sphere is the distance r is the radius of the ball and the circle is the center of the mathematical ball, as the center and the radius of the sphere is to respectively.

The ball and sphere have not to be maintained mathematical references as solid references. A sphere of any radius is centered at the number of zero.

Explanation: Hope this helps and good luck :)

3 0

3 years ago

A spring of spring constant k = 200 N m−1 is slowly extended from an extension of 3.0 cm to an extension of 5.0 cm. Calculate th

m_a_m_a [10]

Answer:

31

Explanation:

No need

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3 years ago

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