Look at the chart that shows the distance of the star Proxima Centauri from the Earth. Distance from Earth to Proxima
Centauri, the next nearest star
~40,000,000,000,000 km
or
~4.24 light-years
Which of the following would be true if Proxima Centauri was one light year closer to the Earth?
A Its brightness in the sky would appear to be the same as it was before.
B Its brightness in the sky would be reduced because of the orbit of other planets.
It would affect the gravitational pull of the Earth's orbit.
D It would look brighter than the sun.

The difference between two numbers is 15. when twice the smaller number is subtracted from three times the larger number, the difference is 58.what is the larger number?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain