All categories

2 years ago

Which of the following phenomena can be used to support the particle theory of light? Select all that apply.

Physics

1 answer:

zvonat [6]2 years ago

5 0

Reflection,polarization,interference patterns

You might be interested in

Which metals have similar chemical properties

slava [35]

Answer:

The alkaline earth metals (beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. somewhat reactive metals at standard temperature and pressure.

5 0

3 years ago

A 91.5 kg football player running east at 2.73 m/s tackles a 63.5 kg player running east at 3.09 m/s. what is their velocity aft

matrenka [14]

Answer:

The velocity of the players will be <u>2.88 m/s</u> in the <u>east</u> direction.

Explanation:

Let 'v' be the velocity of the players after collision.

Consider the east direction as positive direction.

Given:

Mass of the first player is, $m_1 = 91.5$ kg

Initial velocity of the first player is, $u_1 = 2.73$ m/s

Mass of the second player is, $m_2 = 63.5$ kg

Initial velocity of the second player is, $u_2 = 3.09$ m/s

In order to solve this problem we use the law of conservation of momentum which says that the total momentum must be conserved before and after the collision. So we can write:

$p_i = p_f\\m_1 u_1 + m_2 u_2 = (m_1 + m_2)v$

Solving for v, we get:

$v = \frac{m_1 u_1+m_2 u_2}{m_1+m_2}=\frac{(91.5)(2.73)+(63.5)(3.09)}{91.5+63.5}=2.88\ m/s$

Therefore, their velocity after the collision is 2.88 m/s.

The sign of the velocity after collision is positive. So, the players will move in the east direction only after collision.

3 0

3 years ago

You can use one of your 5 senses to make _____ during an inquiry activity.

aivan3 [116]

you can use one of your 5 senses to make _____ during an inquiry activity.

sound

4 0

3 years ago

Read 2 more answers

The fact that Voyager 10 continues to speed out of the solar system, even though its rockets have no fuel, is an example of Grou

miv72 [106K]

Answer:

The universal law of gravitation.

PE = m * G M / R^2 potential energy of mass m due to attractive forces

If the kinetic energy of mass m is greater than the energy due to the attractive masses then then mass m can continue indefinitely away from the attracting masses.

8 0

2 years ago

A pole vaulter takes 1.3 seconds to fall from peak height to the landing mat. What is his vertical velocity at contact with the

julia-pushkina [17]

$12.75 \frac{m}{s}$

Assuming vertical acceleration of $9.81 \frac{m}{s^2}$ , the speed after x seconds of falling is $9.81x \to 9.81(1.3) = 12.75$

6 0

2 years ago