All categories

3 years ago

Calculate the density of a substance that has mass 10g and volume 2mL

Physics

1 answer:

noname [10]3 years ago

4 0

You're supposed to divide the mass by the volume, which is going to equal to 5

You might be interested in

Spinning a loop of wire between the poles of a magnet will induce an electric current. What condition would minimize the induced

DochEvi [55]

B. The other choices all happen at some point in the rotation but you want to maximize the flux and then rotate it as fast as possible

8 0

3 years ago

calculate the force between two objects that have masses of 20 kg and 100 kg separated by a distance of 2.6 m

olga55 [171]

The gravitational force between the objects is $1.97\cdot 10^{-8} N$

Explanation:

The magnitude of the gravitational force between two objects is given by the equation:

$F=G\frac{m_1 m_2}{r^2}$

where

$G=6.67\cdot 10^{-11} m^3 kg^{-1}s^{-2}$ is the gravitational constant

$m_1, m_2$ are the masses of the two objects

r is the separation between the objects

For the two objects in this problem:

$m_1 = 20 kg\\m_2 = 100 kg$

And their distance is

r = 2.6 m

So, the gravitational force between them is

$F=\frac{(6.67\cdot 10^{-11})(20)(100)}{2.6^2}=1.97\cdot 10^{-8} N$

Learn more about gravitational force:

brainly.com/question/1724648

brainly.com/question/12785992

#LearnwithBrainly

7 0

3 years ago

An ice skater is spinning at 6.00 rev/s with his moment of inertia being 0.400 kg/m2. Calculate his new moment of inertia if he

labwork [276]

Answer:

New moment of inertia will be $I=1.92kgm^2$

Explanation:

It is given initially angular velocity $\omega =6rev/sec=6\times 2\pi =37.68rad/sec$

Moment of inertia $I=0.4kgm^2$

Angular momentum is equal to $L=I\omega =37.68\times 0.4=15.072kgm^2/sec$

Now angular velocity is decreases to $\omega =1.25rev/sec=1.25\times 2\times 3.14=7.85rad/sec$

As we know that angular momentum is conserved

So $15.072=I\times 7.85$

$I=1.92kgm^2$

So new moment of inertia will be $I=1.92kgm^2$

4 0

3 years ago

Two identical peaches, Peach 1 and Peach 2, fall from a cliff at time t=0t=0t, equals, 0 from the same height. Peach 1 is droppe

Hunter-Best [27]

Answer: The correct answer is graph A.

Explanation:

See Khan Academy.

4 0

3 years ago

Read 2 more answers

How do you find the force of gravity?

devlian [24]

1Define the equation for the force of gravity that attracts an object, Fgrav = (Gm1m2)/d2
2. Use the proper metric units.
3. Determine the mass of the object in question.
4. Measure the distance between the two objects
5. Solve the equation

7 0

3 years ago