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3 years ago

Have scientists discovered a fifth fundamental force of nature?

1 answer:

5 0

Hi , recent findings indicating the possible discovery of a previously unknown subatomic particle may be evidence of a fith fundamental force of nature.

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There is T__ as much voltage. This<br> produces twice the current

Lera25 [3.4K]

Twice as much voltage

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2 years ago

An ocean wave has a wavelength of 15 meters and is moving at 2.5 m/s. what is the frequency

Tasya [4]

Answer:

frequency is .167/s for this wave

8 0

3 years ago

Read 2 more answers

A 4.0-kg falcon catches a 1.0-kg dove from behind in midair. What is their velocity after impact if the falcon’s velocity is ini

Grace [21]

Answer:

V = 2.8 m/s

Explanation:

It is given that,

Mass of falcon, $m_1=4\ kg$

Mass of dove, $m_2=1\ kg$

Initial velocity of falcon, $u_1=3\ m/s$

Initial velocity of dove, $u_2=2\ m/s$

When the falcon catches the dove, the momentum remains conserved. Using the formula for the conservation of momentum as :

$m_1u_1+m_2u_2=(m_1+m_2)V$

V is the velocity after impact

$V=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}$

$V=\dfrac{4\times 3+1\times 2}{(4+1)}$

V = 2.8 m/s

So, their velocity after the impact is 2.8 m/s. Hence, this is the required solution.

7 0

3 years ago

A projectile, fired with unknown initial velocity, lands 20sec later on side of hill, 3000m away horizontally and 450m verticall

lorasvet [3.4K]

Explanation:

Given:

t = 20 seconds

x = 3000 m

y = 450 m

a) To find the vertical component of the initial velocity $v_{0y}$ , we can use the equation

$y = v_{0y}t - \frac{1}{2}gt^2$

Solving for $v_{0y}$ ,

$v_{0y} = \dfrac{y + \frac{1}{2}gt^2}{t}$

$\:\:\:\:\:\:\:=\dfrac{(450\:\text{m}) + \frac{1}{2}(9.8\:\text{m/s}^2)(20\:\text{s})^2}{(20\:\text{s})}$

$\:\:\:\:\:\:\:=120.5\:\text{m/s}$

b) We can solve for the horizontal component of the velocity $v_{0x}$ as

$x = v_{0x}t \Rightarrow v_{0x} = \dfrac{x}{t} = \dfrac{3000\:\text{m}}{20\:\text{s}}$

$v_{0x} = 150\:\text{m/s}$

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3 years ago

6. A resident throws a bag full of trash over the balcony of their third-floor apartment. What will happen to the acceleration o

trasher [3.6K]

The trash bag will gain gain speed in till hitting the ground and passably exploding on impact of the ground depending on the strength of the trash bag it may rip during the fall.

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6 0

3 years ago