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Olenka [21]
3 years ago
13

The blue mass is currently 4 meters away from the red mass.

Physics
1 answer:
umka21 [38]3 years ago
6 0

Answer:

its a!

Explanation:

•✧•

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A football player with a mass of 88 kg and a speed of 2.0 m/s collides head-on with a player from the opposing team whose mass i
Ket [755]

Answer:

Speed of another player, v₂ = 1.47 m/s

Explanation:

It is given that,

Mass of football player, m₁ = 88 kg

Speed of player, v₁ = 2 m/s

Mass of player of opposing team, m₂ = 120 kg

The players stick together and are at rest after the collision. It shows an example of inelastic collision. Using the conservation of linear momentum as :

m_1v_1+m_2v_2=(m_1+m_2)V

V is the final velocity after collision. Here, V = 0 as both players comes to rest after collision.

v_2=-\dfrac{m_1v_1}{m_2}

v_2=-\dfrac{88\ kg\times 2\ m/s}{120\ kg}

v_2=-1.47\ m/s

So, the speed of another player is 1.47 m/s. Hence, this is the required solution.

7 0
3 years ago
State how the sun transfers energy to earth
Nookie1986 [14]

The sun transfers energy to Earth in the form of electromagnetic radiation.
That includes radio waves, heat, light, ultraviolet, and X-ray energy.


6 0
3 years ago
Read 2 more answers
Find the rms current delivered by the power supply when the frequency is very large. Answer in units of A.
Verizon [17]

Answer:

The rms current is 0.3112 A.

Explanation:

Given that,

Suppose, The capacitance is 170 μF and the inductance is 2.94 mH. The resistance in the top branch is 278 Ohms, and in the bottom branch is 151 Ohms. The potential of the power supply is 47 V .

We know that,

When the frequency is very large then the capacitance can be treated as a short circuit and inductance as open circuit.

So,

We need to calculate the rms current

Using formula of current

I=\dfrac{V}{R}

Where, V = voltage

R = resistance

Put the value into the formula

I=\dfrac{47}{151}

I= 0.3112 \ A

Hence, The rms current is 0.3112 A.

8 0
3 years ago
What is the relative velocity between two cars moving in the opposite direction with velocity 20m/s​
Scrat [10]
  • V_A=V_B=20m/s

Both are moving opposite

\\ \sf\ast\Rrightarrow R_{AB}=V_A-V_B

\\ \sf\ast\Rrightarrow R_{AB}=20-20

\\ \sf\ast\Rrightarrow R_{AB}=0m/s

3 0
3 years ago
A simple pendulum is swinging back and forth through a small angle, its motion repeating every 1.15 is. How much longer should t
max2010maxim [7]

Answer:

ΔL=0.14m

Explanation:

The period of oscillations of simple pendulum is

T=2\pi \sqrt{\frac{L}{g} } \\

Here L is length of pendulum and g is acceleration due to gravity

So the length of pendulum is:

L=\frac{T^{2}g }{4 \pi^{2} }\\

So increase in length is:

ΔL=L₂-L₁

=\frac{T_{2}^{2}g }{4 \pi^{2} }-\frac{T_{1}^{2}g }{4 \pi^{2} }\\=\frac{g}{4 \pi^{2} }[T_2^{2} -T_1^{2} ]\\ =\frac{9.8}{4 \pi^{2}}[(1.15+0.22)^{2}-(1.15)^{2}  ] \\=0.14m

ΔL=0.14m

3 0
3 years ago
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