A jar of quarters sits on a table with zero velocity. There are two forces acting on the jar. What is this situation called?

Pluto’s diameter is approximately 2370 km, and the diameter of its satellite Charon is 1250 km. Although the distance varies, th

MissTica

Answer:

$r_{cm} = 2520.5 km$

Explanation:

As we know that mass is the product of volume and density

so we will have

$M = \rho V$

here we have

$M = \rho(\frac{4}{3}\pi r^3)$

so we will have

$\frac{M_p}{M_c} = (\frac{r_p}{r_c})^3$

so we will have

$\frac{M_p}{M_c} = (\frac{2370}{1250})^3$

$M_p = 6.81 M_c$

now let the position of Pluto is at origin so we have

$r_{cm} = \frac{M_p (0) + M_c(19700)}{M_p + M_c}$

$r_{cm} = \frac{19700}{\frac{M_p}{M_c} + 1}$

$r_{cm} = \frac{19700}{6.81 + 1}$

$r_{cm} = 2520.5 km$

5 0

3 years ago

NASA launches a probe with a mass of 15,000 kg to another planet more massive than Earth. Which statement is true about the prob

vivado [14]

Answer: The weight of the probe will increase.

8 0

2 years ago

The velocity of an object increases from -10 m/s to -15 m/s in 2.0 s. What is the average acceleration of the object?

charle [14.2K]

Answer:

$a=-2.5 \ m/s^2.$

Explanation:

It is given that.

Initial velocity, $v_i=-10\ m/s$ .

Final velocity, $v_f=-15 \ m/s$ .

Also, time taken during the process, $t=2.0 \ s$ .

So, average acceleration, a is given by:

$a=\dfrac{v_f-v_i}{t}$

Putting all the given values in above equation.

$a=\dfrac{-15-(-10)}{2} \ m/s^2=-2.5 \ m/s^2.$

Hence, it is the required solution.

5 0

2 years ago

Read 2 more answers

Unpolarized light with an intensity of 22.4 ????ux passes through a polarizer whose transmission axis is vertically oriented. (a

irina1246 [14]

Answer:

a) I₁ = 11.2 Lux , vertical direction , b) I₂ = 1.44 Lux

Explanation:

a) A polarized is a system that absorbs light that is not polarized in the direction of its axis, therefore half of the non-polarized light must be absorbed

consequently the above the processed light has half of the incident intensity and the directional of the polarized

I₁ = I₀ / 2

I₁ = 22.4 / 2

I₁ = 11.2 Lux

is polarized in the vertical direction

b) The polarized light falls on a second polarizer, therefore it must comply with the law of Malus

I₂ = I₁ cos² θ

I₂ = 11.2 cos² 69

I₂ = 1.44 Lux

8 0

2 years ago

A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5m/s/s. Determine the mass of the encyc

Neko [114]

A=5m/s
F=15N
by the formula, F = m × a
15N = m × 5m/s
m = $\frac{15}{5} 
$
By simplification(division),
m = 3
Thus, mass of the Encyclopedia will be 3kgs.

All the Best. :D

5 0

2 years ago

A jar of quarters sits on a table with zero velocity. There are two forces acting on the jar. What is this situation called?​

A jar of quarters sits on a table with zero velocity. There are two forces acting on the jar. What is this situation called?