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🟢Which of the following is responsible for carrying genetic information in cells?
🟢Which of the following is an example of an exothermic reaction?
🟢The Law of Universal Gravitation
✅The Law of Universal Gravitation is a fundamental law in physics that describes the force of gravity between two objects.
✅It states that every object in the universe attracts every other object with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
✅The formula for the Law of Universal Gravitation is:
F = G (m1 m2) / r^2
where F is the force of gravity between the two objects, G is the gravitational constant (6.67430 × 10^-11 N m^2/kg^2), m1 and m2 are the masses of the two objects, and r is the distance between their centers of mass.
✅An example of the Law of Universal Gravitation in action is the gravitational force between the Earth and the Moon. The Moon orbits the Earth because of the gravitational force between them.
✅The force of gravity between the Earth and the Moon is what keeps the Moon in its orbit around the Earth.
✅The Law of Universal Gravitation has many applications in physics and engineering.
✅It is used to calculate the trajectories of spacecraft and satellites, to predict the motion of planets and stars, and to understand the behavior of black holes and other astronomical objects.
✅It is also used in everyday applications such as designing roller coasters and calculating the weight of objects on different planets.
https://t.me/tutorialpointeth
🟢Which of the following organs is responsible for filtering waste products from the blood?
✅Explanation to question👇🏾
Find the median of the set of numbers: 4, 5, 3, 3, 1, 2, 3, 2, 4, 8, 2, 4, 4, 5, 2, 3, 6, 2?
🔶Solution
To find the median of a set of numbers, we need to arrange the numbers in order from smallest to largest and then find the middle number. If there are an even number of values, we take the average of the two middle numbers.
Arranging the given set of numbers in order from smallest to largest, we get:
1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 6, 8
There are 15 numbers in this set, which is an odd number, so the median is the middle number. The middle number is the 8th number in the set, which is 3. Therefore, the median of the set of numbers is 3🔴
🟢Which of the following is a type of computer memory that is non-volatile?
🟢Which of the following is the equation used to calculate the force exerted by a spring?
🟢Which of the following statements is true about the Law of Universal Gravitation?
a) It states that the force of gravity between two objects is inversely proportional to the distance between them.
b) It states that the force of gravity between two objects is directly proportional to the distance between them.
c) It states that the force of gravity between two objects is inversely proportional to the product of their masses.
d) It states that the force of gravity between two objects is directly proportional to the product of their masses.
🟢The process by which genetic information is passed from parents to offspring is called:
📚What is the probability of rolling a prime number on a fair dice?
📝A fair dice has six sides numbered from 1 to 6. So, the sample space is
S = {1, 2, 3, 4, 5, 6}
✅A prime number is a positive integer greater than 1 that has no positive integer divisors other than 1 and itself. In other words, a prime number is a number that is only divisible by 1 and itself. For example, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, and so on are all prime numbers. On the dice there are three prime numbers, so
E = {2, 3, 5}
Therefore, the probability of rolling a prime number (possible event) on a fair dice is the number of prime numbers on the dice divided by the total number of possible outcomes🔴
P = n(E)/n(S)
🟢Since there are three prime numbers on the dice, the probability of rolling a prime number is:
3/6 or 1/2
which can also be expressed as 50%🔴
🟢Which of the following is responsible for transmitting signals between nerve cells?
📚Explanation on the question👇
✅A chemical change is a process in which one or more substances are transformed into new substances with different chemical properties.
✅During a chemical change, the atoms of the original substances rearrange themselves to form new chemical bonds, resulting in a change in the chemical composition of the substances.
📝Examples of chemical changes include burning wood, rusting of iron, digestion of food, and the reaction between baking soda and vinegar to produce carbon dioxide gas.
✅Chemical changes are often irreversible, meaning that it is difficult or impossible to return the substances to their original state.
✅Which of the following is an example of a chemical change?
a) Melting ice
b) Dissolving salt in water
c) Burning wood
d) Boiling water
👉a) Melting ice is an example of a physical change, not a chemical change. The ice changes from a solid to a liquid state, but the chemical composition of the water molecules remains the same.
👉b) Dissolving salt in water is also a physical change. The salt crystals break apart and mix with the water molecules, but the chemical composition of the salt remains the same.
👉c) Burning wood is an example of a chemical change. The heat from the fire causes the wood to undergo a chemical reaction with oxygen in the air, producing new substances such as carbon dioxide, water vapor, and ash.
👉d) Boiling water is a physical change. The water changes from a liquid to a gas state, but the chemical composition of the water molecules remains the same.
🟢What is the probability of rolling a prime number on a fair six-sided die?
🟢Which of the following substances would be most acidic?
(PHY)🟢The rate at which an object changes its velocity is called:
