2 years ago

4. Density is a property of all matter.

Physics

1 answer:

lubasha [3.4K]2 years ago

4 0

Pretty sure it’s true

You might be interested in

A very long train is rolling at 4 m/s along a straight track. An observer is standing on the ground very dangerously close to th

hichkok12 [17]

Answer:

A. $\vec{r}=(6\frac{m}{s})t\ \ \hat{i}$

B. t = 50 s

Explanation:

A. The vectorial equation of the person who is getting closer to the other person is:

$\vec{r}=\vec{v}t$

r: position vector

v: speed vector = 6m/s i (if you consider the motion as a horizontal motion)

Then, you replace and obtain:

$\vec{r}=(6\frac{m}{s})t\ \ \hat{i}$

B. The time is:

$t=\frac{d}{v}$

d: distance to the observer = 300m

v: speed of the person on the car = 6.00 m/s

$t=\frac{300m}{6m/s}=50s$

4 0

3 years ago

The speed of the ball when it returns to the same horizontal level

stellarik [79]

8.0 m/s if there is no air resistance. (B)

Less if there IS any air resistance.

4 0

2 years ago

Expansionary monetary policies would likely cause

Jlenok [28]

Answer:

TRUE

Explanation:i've seen one and please make me the brainlest

6 0

1 year ago

A small sphere with a mass of 441 g is moving upward along the vertical +y-axis when it encounters an electric field of 5.00 N/C

sweet-ann [11.9K]

In your question where the ask is to calculate the charge that the small sphere carries which is the mass of it is 441g moving at an acceleration of 13m/s^2 nad having and electric field of 5N/C. So the formula in getting the charge is mutliply the mass and the quotients of Acceleration and the Electric Field so the answer is 1,146.6

3 0

3 years ago

• List two conditions needed for transfer of heat by conduction

Murljashka [212]

Answer:

Difference in temperature

Contact between the bodies

7 0

3 years ago

Read 2 more answers