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Anastasy [175]
3 years ago
12

Why do gamma rays have no charge?

Physics
1 answer:
Yakvenalex [24]3 years ago
8 0
For the same reason that light and radio waves have no charge. 
Gamma rays are very short electromagnetic waves.
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Why doesn't the skateboarder roll as high each time she goes up the ramp
Westkost [7]

Answer:

The skater has mechanical/gravitational potential energy at the two meter mark. The skater gets to two meters high on the other end of the ramp. In terms of the conservation of energy, the skater will never go higher than two meter on the other end of the the ramp because energy can be neither created nor destroyed.

Explanation:

I hoping it is right!!!∪∧∪     ∪ω∪

6 0
3 years ago
Read 2 more answers
You are an engineer in charge of designing a new generation of elevators for a prospective upgrade to the Empire State Building.
DanielleElmas [232]

Answer:

   t_total = 23.757 s

Explanation:

This is a kinematics exercise.

Let's start by calculating the distance and has to reach the limit speed of

v = 18.8 m / s

         v = v₀ + a t₁

the elevator starts with zero speed

         v = a t₁

         t₁ = v / a

         t₁ = 18.8 / 2.40

         t₁ = 7.833 s

in this time he runs

         y₁ = v₀ t₁ + ½ a t₁²

         y₁ = ½ a t₁²

         y₁ = ½ 2.40 7.833²

         y₁ = 73.627 m

This is the time and distance traveled until reaching the maximum speed, which will be constant throughout the rest of the trip.

           x_total = x₁ + x₂

           x₂ = x_total - x₁

           x₂ = 373 - 73,627

           x₂ = 299.373 m

this distance travels at constant speed,

           v = x₂ / t₂

           t₂ = x₂ / v

           t₂ = 299.373 / 18.8

           t₂ = 15.92 s

therefore the total travel time is

           t_total = t₁ + t₂

           t_total = 7.833 + 15.92

           t_total = 23.757 s

6 0
3 years ago
Find an expression for the kinetic energy of the car at the top of the loop.Express the kinetic energy in terms of m, g, h, and
lyudmila [28]

Answer:

K.E₂ = mg(h - 2R)

Explanation:

The diagram of the car at the top of the loop is given below. Considering the initial position of the car and the final position as the top of the loop. We apply law of conservation of energy:

K.E₁ + P.E₁ = K.E₂ + P.E₂

where,

K.E₁ = Initial Kinetic Energy = (1/2)mv² = (1/2)m(0 m/s)² = 0 (car initially at rest)

P.E₁ = Initial Potential Energy = mgh

K.E₂ = Final Kinetic Energy at the top of the loop = ?

P.E₂ = Final Potential Energy = mg(2R) (since, the height at top of loop is 2R)

Therefore,

0 + mgh = K.E₂ + mg(2R)

<u>K.E₂ = mg(h - 2R)</u>

3 0
3 years ago
ASAP pls answer I will mark brainiest if right.
Sergio039 [100]
1) g
2) b
3) a
4) e
5) c
6) d
7) f
5 0
3 years ago
Two clay balls collide head-on in a perfectly inelastic collision. The first ball has a mass of 0.500 kg and an initial velocity
mrs_skeptik [129]

Answer:

v'=1.667\ m.s^{-1}  in the direction of the first body

Explanation:

Given:

  • mass of the first ball, m_1=0.5\ kg
  • velocity of the first ball, v_1=4\ m.s^{-1}
  • mass of the second ball, m_2=0.25\ kg
  • velocity of the second ball, v_2=3\ m.s^{-1}

<u>Now for the head-on inelastic collision:</u>

m_1.v_1-m_2.v_2=(m_1+m_2)v'

(since the bodies combine after an inelastic collision.)

0.5\times 4-0.25\times 3=(0.5+0.25)\times v'

v'=1.667\ m.s^{-1} in the direction of the first body. (Since the net result is positive as assumed in the equation for the first body)

4 0
3 years ago
Read 2 more answers
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