A person of 45 kg can accelerate at 1.5 m/s² on a straight road. What is the force created? a) 46.5 N b) 67.5 N c) 30 N d) 0.033 N
Answers
Answer:
b) 67.5 N
Explanation:
Force (F) = mass (m) × acceleration (a)
The mass (m) is 45 kg, and the acceleration (a) is 1.5 m/s². Plug these values into the formula:
F = 45 kg × 1.5 m/s²
F = 67.5 N
So, the force created by the person is 67.5 Newtons.
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OB. The water is pushing the boat 20 m/s upstream.
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Answers
Here are the following choices.
a. lack of modern energy sources
b. increased prices
c. decreased competition
d. decreased prices
The small increase in global oil production coupled with an increased demand for those resources leads to a potential imbalance between supply and demand in the oil market.
When global oil production experiences only a small increase while the demand for oil rises, it means that the rate of production growth is insufficient to meet the growing demand.
This situation can have several implications:
Rising oil prices: As demand outpaces supply, the limited availability of oil can lead to an increase in oil prices. When the demand for oil exceeds the available supply, buyers are willing to pay higher prices to secure the limited resources.
Market volatility: Insufficient supply to meet demand can result in market instability and volatility. Fluctuations in oil prices can create uncertainty in the market, affecting businesses, investors, and consumers.
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Answers
Answer:
Explanation:
We are given that
Speed of light,v=
Diameter of ring,d=92 m
Radius,r=
Current, I=0.40 A
We have to find the number of electrons in the beam.
We know that
Current,I=
Where q= ne
Using the formula
b. Physicists develop mathematical equations to determine its physical nature.
c. The Big Bang theory provides the scientific guidelines to enable its study.
d. Scientists are able to gather samples from NASA.
Answers
Answer: a. The cosmological principle makes assumptions that provide scientific guidelines to enable its study.
Explanation:
Scientists cannot physically test their ideas about the origin of the universe but they use cosmological principles to study. Some aspects of the assumptions made on the basis of cosmological principle can be tested. Whatever was formed at the origin of the universe is present around us. Studies are made on them and conclusions are drawn.
Cosmological principle states that on larger scale, the universe is homogeneous and isotropic. This means in which ever direction we look, its the same and there is no preference to any particular direction to make observations.
There are numerous theories associated with the origin of the universe but none can be proved. The theories can only be studied based on the assumptions made using the cosmological principle.
a. The cosmological principle makes assumptions that provide scientific guidelines to enable its study.
Hope this helps.
B. volcanism
C. radioactive decay
D. mantle convection
Answers
Answers
If the upward acceleration is equal to the acceleration due to gravity (), then the apparent weight would be zero, indicating that the passenger is experiencing weightlessness or is in a state of free fall.
When the box has left the rubber band but is still moving upward, the passenger's apparent weight would be less than their actual weight.
The apparent weight of an object is the force exerted on it by a supporting surface, which in this case is the floor of the box. It is equal to the normal force acting on the object.
As the box accelerates upward, there are two main forces acting on the passenger: the gravitational force (weight) pulling them downward and the normal force pushing them upward. The normal force is responsible for providing the upward acceleration to the passenger.
Since the passenger is moving upward, the normal force exerted by the floor must be less than their actual weight to create the net upward force necessary for upward acceleration. Therefore, the passenger's apparent weight is reduced.
The exact value of the apparent weight depends on the magnitude of the upward acceleration and the mass of the passenger. The apparent weight can be calculated using the equation:
Apparent weight = Actual weight - (Mass of passenger * Magnitude of upward acceleration)
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