All points to the left of zero on a horizontal number line are negative
B.) caused by gravity and that depends on an object's position and mass.
C.) caused by gravity and that depends on an object's mass, but not its position.
D.) caused by gravity and that depends on an object's position, but not its mass.
If the input machine produces an output of 80 Newtons, then the mechanical advantage is that it produces work. If the required output must be 80 Newtons, then the input force is desirable having 100 percent production of force even though it requires a large amount of input to produce 80 Newtons of force.
atoms are made of particles that have a negative charge.
electrons in atoms must have varying amounts of energy.
electrons are only found in the nucleus.
Using a cathode ray tube, Thomson confirmed that atoms are made of particles that have a negative charge., therefore the correct answer is option B
There are some models that are used to explain the arrangements of subatomic particles inside the atom based on the atomic theory of atom are known as the atomic models.
J.J. Thomson discovered using cathode ray tubes that something emits from the negative plate (referred to as the cathode) and travels towards the positive plate (referred to as the anode), and that when zinc sulfide (also known as a phosphor) coating is applied to the perforated anode, it exhibits green fluorescence at a specific pressure and temperature values.
Thus,by using a cathode ray tube, Thomson confirmed that atoms are made of particles that have a negative charge., therefore the correct answer is option B
Learn more about the atomic models here
#SPJ6
Option (B) is correct .i.e. atoms are made of particles that have negative charge.
Further explanation:
Using cathode ray tube, J.J Thomson found that something emits from the negative plate (called as cathode) and goes towards the positive plate (called as anode), and on applying zinc sulfide (also called phosphor) coating on the perforated anode, it shows green fluorescence at some particular values of pressure and temperature.
William Crookes called them the cathode rays as were originated from cathode. Further, Atoms are overall neutral having equal amounts of positive and negative charge as he explained in his plum pudding model.
Although, electrons in atoms have varying energy but this was not confirmed by J.J. Thomson, also electrons can’t be inside nucleus because this would make atoms very unstable.
Some of the properties of those cathode rays are as follows:
(1). They are made up of material particles (they made the light wheels rotate that come in their path).
(2). The green fluorescence was also observed when he putted two more plates perpendicular to the earlier path and the rays followed a curved path towards the new anode.
(3). They has an ionizing property (they ionizes the gas present in the cathode ray tube, through which they pass).
Thus, Option (B) is correct because the cathode rays are emitted from the metallic plate which’s atoms have particles having negative charge.
Learn More:
1. A radio station's channel, such as 100.7 fm or 92.3 fm, is actually brainly.com/question/9527365
2. A very long, uniformly charged cylinder has radius r and linear charge density λ brainly.com/question/1834208
3. The results of Rutherford's gold foil experiment demonstrated that brainly.com/question/1542931
Answer Details:
Grade: High School
Subject: Physics
Chapter: Modern physics
Keywords:
Atoms, cathode, cathode rays, cathode ray tubes, J.J. Thomson, negatively charged particles, nucleus, energy, varying energy, electrons, green fluorescence, phosphor, anode, protons, pressure, temperature, William Crookes.
Answer:
150 I would believe that it is the correct answer
Answer: Fog
Explanation:
Fog can be defined as the clouds on ground. Fog is made of condensed air and that is being cooled down to the point where it cannot hold more water.
The frost overnight forms fog. During the long nights the air gets cooled down and the the moisture in the air also adds to the formation of fog.
Thus, the correct answer is fog.
Answer:
The apparent weight of a freely falling body is zero. When a body falls freely, it is falling with an acceleration =g. Thus the entire gravitational force acting on it is utilized in accelerating it and hence its weight is not felt.