The image formed by a convex spherical mirror will always bea. inverted and larger than the object.
b. upright and larger than the object.
c. inverted and smaller than the object.
d. upright and smaller than the object.
Answers
a. inverted and larger than the object.
A mirror is used to see your own reflection. Earlier in the days, people would use a still water to see their reflection. It is basically used for grooming. Spherical mirrors have been used by earlier mathematicians and physicist to conduct experiments related to geometry.
Penn Foster STudents: d. upright and smaller than the object.
Related Questions
Electrical resistance is measured ina. volts. b. joules. c. watts. d. amperes. e. none of the above
Is paper burning with a bright flame exothermic or endothermic
A170 g hockey puck sliding at 25 m/s slows to a speed of 10 m/s in a distance of 7.5 m. Determine the force of friction causing the puck to slow.
How long does it take earth to spin on it axis once?
Answers
Hope this helped!
Answers
D is the correct answer.
Final answer:
Heat transfer between two objects happens when energy transfers from the hotter object to the colder object until they reach thermal equilibrium. This can happen through conduction, convection, and radiation.
Explanation:
The transfer of heat between two objects is best explained by the principle that energy is transferred from the hotter object to the colder object, and this occurs until both objects have reached the same temperature. This transfer of heat energy happens primarily through three processes known as conduction, convection, and radiation.
Conduction is the transfer of heat between two objects in direct contact with each other, such as a hot pan warming up food. Convection is the transfer of heat due to the movement of mass, typically within fluids like air or water. Radiation is the transfer of heat through electromagnetic waves, like the heat you feel from the Sun on a sunny day.
When two objects of different temperatures come into contact, like object X with temperature Tx and object Y with temperature Ty, heat flows spontaneously from the hotter object X to the colder object Y. This results in a loss of thermal energy in X and a gain in thermal energy in Y, until both reach a state of thermal equilibrium.
Learn more about Heat Transfer here:
#SPJ2
B) The field around a solenoid is termed a bar magnet.
C) A solenoid is created by winding current carrying wire into a coil.
D) Increasing the current in the wires will reduce the magnetic field outside of the solenoid.
Answers
Answer;
C) A solenoid is created by winding current carrying wire into a coil.
Explanation;
-A solenoid is a coil of insulated or enameled wire wound on a rod-shaped form made of solid iron, solid steel, or powdered iron.
-Solenoids have a wide range of applications, for instance they are used as electromagnets, as inductors in electronic circuits, and as miniature wireless receiving antennas.
Answers
A pulley is a wheel with two raised edges so that a rope or a string will run along the wheel. The effort force is the one where there is a weight attached to it and enables the pulley to work while the effort distance is the distance between the pulley and the weight attached.
Answers
Answer:
The acceleration of the bucket is 3.77m / S ^ 2 up
Explanation:
Hello,
To solve this exercise we must initially draw the free-body diagram (see attached image) of the bucket, and identify the forces present in this case would be the tension force of the rope and the weight of the bucket.
Then use Newton's law that states that the sum of the forces in a body is equal to mass per accession. We will assume that up is positive and down is negative
T=tension=163N
m=mass of bucket =12kg
g=gravity=9.81m/S^2
T-mg=m(a)
The acceleration of the bucket is 3.77m / S ^ 2 up
Final answer:
The weight of the bucket is 117.6 N. As the tension in the rope is 163 N, which is greater than the weight of the bucket, this means the bucket is accelerating upwards. The acceleration of the bucket, calculated using Newton's Second Law, is 3.78 m/s².
Explanation:
To answer this question, we need to understand the concept of tension and how it relates to the weight of an object and its acceleration according to Newton's Second Law. The tension in the rope (T) equals 163 N, and the weight of the bucket (W) equals its mass (12.0 kg) times acceleration due to gravity (9.8 m/s²), so W = (12.0 kg) (9.8 m/s²) = 117.6 N.
Since the tension is greater than the weight, it means the bucket is accelerating upwards. To calculate the acceleration, we subtract the weight from the tension and divide by the mass. This leaves us with a = (T - W) / m = (163 N - 117.6 N) / 12.0 kg = 3.78 m/s² (upwards, hence positive).
Learn more about Acceleration due to Tension here:
#SPJ3
Brahe
Kepler
Newton
Answers
Answer:
Newton
Explanation:
Ptolemy usually talked about "Earth-centered," or "geocentric" theory that all celestial objects — including the planets, Sun, Moon, and stars — orbited Earth. Earth, in the center of the universe, did not move at all and obviously this theory has been proven wrong.
Brahe model had all the planets (except Earth) orbiting around the Sun, but then the Sun orbited around the Earth. This is also a wrong concept.
Kepler's Laws are mostly based upon the Planetary Motion and are incomplete is some areas.
Only Newton law best describes the motion of all planets where he says that all motion, whether it was the orbit of the Moon around the Earth or an apple falling from a tree, followed the same basic principles.