Answer:
3.1 m/s²
Explanation:
Given:
Mass of the balloon (m) = 11.4 g = 0.0114 kg ( 1 kg = 1000 g)
Force acting on the balloon (F) = 0.035 N
Acceleration with which the balloon must be hit (a) = ?
Now, we know that, from Newton's second law, net force acting on an object is equal to the product of its mass and acceleration.
Therefore, framing in equation form, we have:
Rewriting in terms of acceleration 'a', we get:
Now, substitute the given values and solve for 'a'. This gives,
Therefore, the acceleration of the water balloon to reach the target must be equal to 3.1 m/s².
Answer:
3.1
Explanation:
e2020
Answer:
The SI unit of velocity, acceleration, force and mass of the car are m/s, m/s², kg-m/s² and kg.
Explanation:
SI unit is the international system units.
We need to define the SI unit of velocity, acceleration, force and mass of the car
The SI unit of velocity is
The SI unit of acceleration is
The SI unit of force is
The SI unit of mass is
Hence, The SI unit of velocity, acceleration, force and mass of the car are m/s, m/s², kg-m/s² and kg.
Velocity ... m/s (meters per second) and angle
Acceleration ... m/s^2 and angle
Force ... Newton (kg-m/s^2) and angle
Mass ... kilogram
Momentum = (mass) x (speed)
Momentum = (12,000 kg) x (40 m/s)
Momentum = (12,000 x 40) kg-m/s
Momentum = 480,000 kg-m/s
Answer : The correct option is, (D) They have the same number of electrons in their outermost shells.
Explanation :
Periods : A row in the periodic table is known as periods.
The common features about the elements of a period are :
Each periods has elements with the same number of electron shells or energy levels or shell.
They transition from metal to noble gas that means they move from metal to non-metal and then non-metal to noble gas.
Groups : A column in the periodic table is known as groups.
The common features about the atoms of elements in a same group are :
Each groups has elements with the same number of valance electrons or have same of electrons in their outermost shells.
The elements in the same group have similar chemical properties.
The elements in the same group have similar physical properties.
Hence, the correct option is, (D) They have the same number of electrons in their outermost shells.
7. Based on the principle of inclusions, the cobbles in conglomerate must have been formed _______ the conglomerate.
8. Geologists use the principle of _______ to justify using fossils in a sample of sedimentary rock to determine the rock’s age.
9. Partings between adjacent beds of sedimentary rock may represent periods of _______, which could range from a few decades to a few centuries.
10. Some graded beds, especially those resulting from deposition by a fast-moving debris flow, are reversed, which means _______ material is at the top instead of at the bottom.
Answer:
Explanation:
5. Limestone typically doesn't accumulate in the ocean at depths below 4,000 meters because below that depth, calcite is ___not preserved ____.
The calcite compensation depth CCD is the depth at which the rate of dissolution of calcite increases beyond that of accumulation.
6. Based on the principle of original horizontality, geologists conclude that layers of sedimentary rock that have been tilted must have been subjected to __tectonic forces_____.
Tectonic forces causes changes in a particle terrain
7. Based on the principle of inclusions, the cobbles in conglomerate must have been formed __earlier than_____ the conglomerate.
The principle of inclusion states that the inclusion is older than the rock that contains it.
8. Geologists use the principle of __fossil and fauna succession _____ to justify using fossils in a sample of sedimentary rock to determine the rock’s age.
The principle of fossil and fauna succession was credited to Williams Smith and it is used for relative dating of a sedimentary sequence. Here, fossils of plants and animals are used to date a sequence.
9. Partings between adjacent beds of sedimentary rock may represent periods of __unconformity _____, which could range from a few decades to a few centuries.
An unconformity is a period of non-depsotion or erosion within a rock layer.
10. Some graded beds, especially those resulting from deposition by a fast-moving debris flow, are reversed, which means ___the oldest____ material is at the top instead of at the bottom.
From the principle of superposition of strata, we know that the oldest layer is at the bottom of the sequence and the youngest is on top.
Answer:
1. high energy
2. deposition
3. Silt
4. limestone
5. Soluble
6. tectonic forces
7. before
8. principle of faunal succession
9. non deposition
10. coarser