Answer:
Two marbles are launched at t = 0 in the experiment illustrated in the figure below. Marble 1 is launched horizontally with a speed of 4.20 m/s from a height h = 0.950 m. Marble 2 is launched from ground level with a speed of 5.94 m/s at an angle above the horizontal. (a) Where would the marbles collide in the absence of gravity? Give the x and y coordinates of the collision point. (b) Where do the marbles collide given that gravity produces a downward acceleration of g = 9.81 m/s2? Give the x and y coordinates.
Explanation:
i want the answer i don't know
Answer:
An atomic nucleus is positively charged because it is composed of protons
Explanation:
Protons carry positive charge and nucleus only contain protons
Answer:
1. Periods; that are what horizontal rows on a periodic table are called.
2. Each period represents the number of levels
Explanation:
Explanation:
A molten steel is in a liquid phase of matter. It has no defined volume of shape at this state. The particles inside this materials in this form is randomized by they are still attached to each other.
- On cooling, when the molten steel solidifies and sets into a solid steel beam, the particles take up a fixed position and forms a definite shape and this confers a definite volume on them.
- The randomized particles stops and forms fixed crystals about their lattice.
- This way, the beam can carry and support a fixed amount of load.
Answer:
14.4 m/s²
Explanation:
The acceleration is the variation of speed divided by the time:
72/5 = 14.4 m/s²
