All categories

3 years ago

A(n) _____ particle is a particle that contains two protons, two neutrons, and has a 2 charge.

Physics

2 answers:

Oksanka [162]3 years ago

6 0

<span>A(n) alpha particle is a particle that contains two protons, two neutrons, and has a 2 charge.
</span>
b. alpha

____ [38]3 years ago

6 0

Alpha I took the test

You might be interested in

If force remains constant and acceleration decreases what must happen to the mass

blondinia [14]

That can only be happening if the mass mysteriously increased somehow. I'd like to know how in the world THAT happened.

4 0

3 years ago

You rapidly swirl a mixture of substances with different densities

borishaifa [10]

Having different densities being swirled rapidly will cause sedimentation. Sedimentation is the segmentation of the mixture creating layers of particles of these different densities. The process of rapid swirling is called differential centrifugation. An example use of this method is separation human blood into, red, platelet and white blood cells.

6 0

3 years ago

What are some of the challenges of scuba diving?

EastWind [94]

Some of the challenges are the unpredictable fish and the risk of scratching againest coral or drowning for not focusing on your oxygen tank.

7 0

3 years ago

A system proposed by the U.S. Navy for underwater submarine communication, called ELF (for extremely low frequency), operates wi

kow [346]

Answer

Wavelength= 30*20^8/30=10^7m

Explanation:

Velocity = frequency *wavelength

We're frequency=30HZ

Velocity of light= 3*10^8m/s

Wavelength= 30*20^8/30=10^7m

Explanation:

7 0

3 years ago

Read 2 more answers

Two students are on a balcony 19.1 m above the street. One student throws a ball, b1, vertically downward at 13.9 m/s. At the sa

tester [92]

Answer:

Part a)

$t = 2.83 s$

Part b)

Ball thrown downwards = $v_f = 23.8 m/s$

Ball thrown upwards = $v_f = 23.8 m/s$

Part c)

$d = 22.24 m$

Explanation:

Part a)

Since both the balls are projected with same speed in opposite directions

So here the time difference is the time for which the ball projected upward will move up and come back at the same point of projection

Afterwards the motion will be same as the first ball which is projected downwards

so here the time difference is given as

$\Delta y = 0 = v_y t + \frac{1}{2}at^2$

$0 = 13.9 t - \frac{1}{2}(9.81) t^2$

$t = 2.83 s$

Part b)

Since the displacement in y direction for two balls is same as well as the the initial speed is also same so final speed is also same for both the balls

so it is given as

$v_f^2 - v_i^2 = 2 a \Delta y$