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2 years ago

How does the force affect the rocks during collisions? *

1 answer:

3 0

In a collision, there is a force on both objects that causes an acceleration of both objects; the forces are equal in magnitude and opposite in direction. For collisions between equal-mass objects, each object experiences the same acceleration.

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On Earth, a kangaroo jumping will eventually return to ground due to the unbalanced force of gravity. What law does this illustr

Kryger [21]

Newton’s law is the answer

6 0

3 years ago

A 0.40-kg mass attached to the end of a string swings in a vertical circle having a radius of 1.8 m. At an instant when the stri

san4es73 [151]

Answer:

T = 8.55 N

Explanation:

When string makes an angle 40 degree with the vertical then it will have two forces on it

1) gravitational force (mg)

2) Tension force in string (T)

now we know that net force towards the center of the path is known as centripetal force and it is given as

$T - mg cos40 = F_c$

$T - (0.40\times 9.8)cos40 = \frac{mv^2}{L}$

$T = 3 + \frac{0.40\times 5^2}{1.8}$

$T = 3 + 5.55$

$T = 8.55 N$

6 0

3 years ago

The graph below represents the motion of four cars, labeled W, X, Y, and Z.

ycow [4]

Answer:

Answer is A

Explanation:

As we know , for constant velocity we get a straight line.

The formula for this problem is s = vt which is similar to a straight line formula like y = mx + c.

If we put here c = 0 we get the formula for distance and velocity.

So the answer is A.

6 0

3 years ago

As the temperature of a liquid increases, the solubility of a solid in the liquid

nexus9112 [7]

D, it depends. For water, the solubility increases as it get hotter, up to 100 degrees, but in some cases, liquids behave the opposite way.

4 0

2 years ago

A wire with a circular cross section has radius 0.16 mm and is lying along the x axis from x=0 to x=0.20 m. The wire is made of

kipiarov [429]

Answer:

Resistance = 68.23 Ω

Explanation:

Let's start off by remembering the fact that when resistors are connected in series, their resistances is added up to find the total resistance.

The equation for resistance using resistivity is given below:

Resistance = Resistivity * Length / Area

where Length = x

Resistivity = 3x^5

and Area = $\pi *0.00016^2$ = 8.04 * 10^(-8) meter squared

Substituting in the value of resistivity, length and area we get:

Resistance = $\frac{ (3x^5) * (x) }{(8.04*10^-^8)}$

Resistance = $\frac{ (3x^6) }{(8.04*10^-^8)}$

Since resistance in series is added, we can simply integrate this formula over the length (x = 0 to x = 0.2) to get the total resistance.

Resistance = $\int\ {\frac{ (3x^6) }{(8.04*10^-^8)}} \, dx$

Resistance = $(5.4857*10^-^6) /(8.04*10^-^8)$

Resistance = 68.23 Ω

3 0

3 years ago

Read 2 more answers