TP-4 When are lights required to be installed on a trailer?

A 2 column by 3 row table. Column 1 is titled Planet A with the following entries: Atmosphere is mostly carbon dioxide, Surface

Eddi Din [679]

Answer: earth

Explanation: isn’t earth the only plant with LIQUID water?

4 0

2 years ago

At a place where an object is thrown vertically downward with a speed of while a different object is thrown vertically upward wi

Bumek [7]

Answer:

Both objects will undergo the same change in velocity

Explanation:

m = Mass of the Earth = 5.972 × 10²⁴ kg

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

r = Radius of Earth = 6371000 m

m = Mass of object

Any object which is falling has only the acceleration due to gravity.

$ma=\dfrac{GMm}{r^2}\\\Rightarrow a=\dfrac{GM}{r^2}\\\Rightarrow a=\dfrac{6.67\times 10^{-11}\times 5.972\times 10^{24}}{(6.371\times 10^6)^2}\\\Rightarrow a=9.81364\ m/s^2$

The acceleration due to gravity on Earth is 9.81364 m/s²

So, the speeds of the objects will change at an equal rate of 9.81364 m/s² but the change will be negative when an object is thrown up.

Hence, both objects will undergo the same change in velocity.

4 0

3 years ago

Suppose you are conducting an experiment concerning gravity's effects on falling objects, and you want to minimize air resistanc

Vladimir79 [104]

Answer: C) Conduct the experiment in a vacuum.

7 0

3 years ago

There are (one can say) three coequal theories of motion for a single particle: Newton's second law, stating that the total forc

PtichkaEL [24]

Answer:

vf = 14.2176 m/s

Explanation:

Given

m = 4 Kg

viy = 7.00 ĵ m/s

Fx = 11.0 î N

t = 4.5 s

vf = ?

Using the Impulse - Momentum Theorem, we have

F*Δt = m*Δv ⇒ F*Δt = m*(vf - vi)

⇒ vf = (F*Δt + m*vi) / m

For <em>x-component</em>

⇒ vfx = (Fx*Δt + m*vix) / m = (11 N*4.5 s + 4 Kg*0 m/s) / (4 Kg)

⇒ vfx = 12.375 î m/s

For <em>y-component</em>

⇒ vfy = (Fy*Δt + m*viy) / m = (0 N*4.5 s + 4 Kg*7 m/s) / (4 Kg)

⇒ vfy = 7 ĵ m/s

Finally:

vf = √(vfx² + vfy²)

⇒ vf = √((12.375 m/s)² + (7 m/s)²)

⇒ vf = 14.2176 m/s

8 0

3 years ago

The table provided shows the masses and volumes of four liquids. A student has a mystery liquid with a density of 3 g/mL. Which

Aleonysh [2.5K]

Answer: Liquid 2, if it's 3 g/mL and liquid 2 has 6gs and 2 mLs than it's 3g/mL

8 0

3 years ago