Why is carbon said to provide a “backbone” in many molecules?(1 point) Carbon atoms can form chains and branches with each other, and other atoms can attach to these.

Carbon atoms have long narrow shapes, allowing many other atoms to attach to them.

Carbon atoms have full shells of electrons, allowing electrical signals to pass through them easily.

Carbon atoms have half-full shells of electrons, allowing electrical signals to pass through them easily.

Determine the maximum r-value of the polar equation r =3+3 cos 0

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?

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers total displacement?