Answer:
B.
more than 150 meters
Explanation:
As we know that the range of projectile motion on the surface of earth is given by the formula
[tex]R = \frac{v^2sin(2\theta)}{g}[/tex]
so here on the surface of earth the gravity is given as g = 9.8 m/s/s
now if the golf ball is hit on the surface of earth then it range is given as R = 150 m
while if we hit the ball at surface of mercury then on the surface of mercury the gravity will be g = 3.7 m/s/s
so due to decrease in the magnitude of gravity the range on the surface of mercury will be more than 150 m
Answer:
B. More that 150 meters.
Explanation:
:)
Which of the following is a type of object that might contain billions of stars?
A.
a solar system
B.
a galaxy
C.
an asteroid
D.
a planetary system
Answer:
A galaxy because that is the largest group and contains many things.
Explanation:
Letter A on this diagram is an example of
A.) vaporization
B.) condensation
C.) sublimation
D.) deposition
What two controls on a car cause a change in speed? What control causes only a change in velocity
We have that for the Question "What two controls on a car cause a change in speed? What control causes only a change in velocity" it can be said that
a)
Accelerator Brake Pedalb)
Brake Pedal
From the question we are told
What two controls on a car cause a change in speed? What control causes only a change in velocity
Generally
A car is been regulated or driven by many controls
But for the speed of a car will consider
AcceleratorThe accelerator this is a control that regulate the speed of the vehicle by increasing and decreasing its speed in motion and initiating its motion
Brake PedalThis is a control that regulate the speed of the vehicle by decreasing its speed in motion
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describe the properties of gases
Answer:
Gases has the following properties:
i) Gases are less dense than liquids and solids
ii) Gases molecules has large space between them so, they can be easily compressed
iii) Gases has indefinite shape and volume
iv) Gases can occupy all the space provided
v) Gases molecules has random motion and collisions
vi) When gases are heated their volume increases
vii) Gases can diffuse from one place to another due to the difference of concentration of molecules
After the last ice age, stranded ice blocks left behind by the continental glacier melted and formed
a.
kettles.
b.
cirques.
c.
drumlins.
d.
moraines.
Answer:
A kettles
Explanation:
When a 440-Hz tuning fork and a piano key are struck together, five beats are heard. If the pitch of the note on the piano is lower than the tuning fork, what is the frequency of the note?
Which of the following is an example of velocity ?
A. 10
B. 10 m/s to the right
C. 10 m to the right
D. 10 m/s
10 m/s to the right is an example of the velocity of an object. Thus, the correct option is B.
What is Velocity?Velocity can be defined as the directional speed of an object which is in motion as an indication of the rate of change in the position of an object as observed from a particular frame of reference by the observer and it is measured by a particular standard of time.
Velocity is a vector quantity. This is because, velocity has both the magnitude and direction. The SI unit of velocity is meter per second. The velocity of an object can be calculated by the formula:
Velocity = Displacement/ Time
Therefore, the correct option is B.
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Rank the following in order of increased size? A. Proton B. Nucleus C. Electron D. Atom
Final answer:
The correct order of increasing size from smallest to largest is: electron, proton, nucleus, atom. Electrons are the smallest particles in this list and form the cloud around the nucleus, which is made of larger protons and neutrons. Atoms include both the nucleus and the electron cloud, making them the largest structures listed.
Explanation:
In order to rank the following from smallest to largest in size, we need to understand the structure of an atom. An atom consists of a central nucleus, which contains protons and neutrons, surrounded by a cloud of electrons.
ElectronProtonNucleusAtomAn electron is the smallest particle among the ones listed. It is part of the cloud around the nucleus and has a negative charge. A proton is a positively charged particle that is one of the components of the nucleus and is larger than an electron. The nucleus, which consists of both protons and neutrons, is significantly larger than a single proton. The atom, consisting of the nucleus and electron cloud, is the largest of all listed components.
It is important to note that while protons and neutrons have roughly the same size, the nucleus varies in size depending on the number of protons and neutrons it contains. Electrons, on the other hand, being much smaller, do not contribute significantly to the overall size of the atom.
Describe Rutherford's contribution to the atomic model.
Answer:
Rutherford brought the concept of a nucleus. He said that the atom "had a tiny and heavy nucleus."
A 0.5 kg ball is tied to a swung in a circle with a radius of 0.400m.If the ball is accelerating at 58.8 m/s^2,what is the tangential velocity of the ball?
PLEASE HELP ME WITH THIS.......
An object 15cm high is 30cm from a pinhole camera.if the height of the image formed at the back of the camera is 10cm,the image distance is?
TO solve this problem, we simply need to use ratio and proportion. From the statement problem we can say the ratio height : distance, so that: (let us say that X is the image distance)
15 cm : 30 cm = 10 cm : X
We know that the symbol : means division so:
15 cm / 30 cm = 10 cm / X
X = 10 cm * 30 cm / 15 cm
X = 20 cm
So the image distance is 20 cm
What happens to light as the ocean increases in depth
Light is the major component required by marine organisms. The penetration of the light varies with the depth of the ocean.
The penetration of the light rays decreases with an increase in depth. The light is unable to breach below 1000 to 1200 meters.
The light effect on the ocean can be explained as:
1. The seawater absorbs the red, orange, and yellow wavelengths, which causes the blue light to penetrate farther into the ocean. It gives the ocean its distinctive blue color.
2. The water absorbs the light rays as it penetrates deep into the ocean. The light rays get completely absorbed before it reaches the ground of the ocean.
3. The light cannot penetrate deep within the ocean, thus, the deep lengths of the ocean are still unknown to humans.
Thus, the light penetration decreases with an increase in the depth of the ocean.
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Please help with this question
A gas tank holds 50L. If the density of gasoline is 0.7g/ml, how much mass will the tank of gas have?
Calculate the G.P.E. in joules of a 675-newton climber at the top of a 3,050-meter mountain in Colorado.
Answer:2673
Explanation:
Final answer:
The gravitational potential energy (G.P.E.) of a 675-newton climber at the top of a 3,050-meter mountain is calculated as 2,058,750 Joules.
Explanation:
To calculate the gravitational potential energy (G.P.E.) of a 675-newton climber at the top of a 3,050-meter mountain in Colorado, we use the formula G.P.E. = weight × height × acceleration due to gravity (g = 9.8 m/s²). Assuming that the weight given is the force due to gravity on the climber, the weight already accounts for the gravitational acceleration, so we do not need to multiply by 9.8 m/s² again. Therefore, the G.P.E. is simply the product of the weight and the height.
G.P.E. = 675 N × 3,050 m
G.P.E. = 2,058,750 Joules
Thus, the climber has a gravitational potential energy of 2,058,750 Joules at the top of the mountain.
a boat is travelling at a velocity of 45m/s S. if the current of the river is moving at a velocity of 15m/s due east, what is the resultant velocity of the boat
vy = 10 m/s v2
y + v
2
x = v
2
ground
vx = 1.5 m/s (10)2 + (1.5)2 = v
2
ground
vground = 10.11 m/s
tan θ =
10
1.5
θ = 81.47
Answer:
Explanation:
31 m/s
23° north of east
what's the difference between asexual reproduction and sexual reproduction?!?!
If the archerfish spits its water 60. degrees from the horizontal aiming at an insect 2.0 m above the surface of the water, how fast must the fish spit the water to hit its target? The insect is at the highest point of the trajectory of the spit water. Use g = 10. m/s2.
Answer: To hit the target fish must spit with the velocity of 7.30 m/s.
Explanation:
Highest point of the trajectory = H = 2 m
Angle at which archer fish spit = θ = 60°
Acceleration due to gravity = g = 10 [tex]m/s^2[/tex]
The maximum height of the projectile is given as:
[tex]H=\frac{u^2\sin^2\theta }{2g}[/tex]
[tex]2 m=\frac{u^2\sin^2(60^o)}{2\times 10 m/s^2}[/tex]
[tex]\sin 60^o=\frac{\sqrt{3}}{2}[/tex]
[tex]u^2=\frac{2 m\times 2\times 10 m/s^2\times 4}{3}=53 m^2/s^2[/tex]
[tex]u=7.30 m/s[/tex]
To hit the target fish must spit with the velocity of 7.30 m/s.
To hit the target fish must spit with the velocity of 7.30 m/s.
Highest point of the trajectory = H = 2 m
Angle at which archer fish spit = θ = 60°
Acceleration due to gravity = [tex]g = 10 m/s^2[/tex]
The maximum height of the projectile is given as:
[tex]H=(u^2\sin^2\theta )/(2g)[/tex]
[tex]2 m=(u^2\sin^2(60^o))/(210m/s^2)[/tex]
[tex]\sin 60^o=\sqrt{(3)/(2)}[/tex]
[tex]u^2=(2 m \times2 10 m/s^2 4)/(3)=53 m^2/s^2[/tex]
u=7.30 m/s
Why would machine-operated stopwatches be used at sports events instead of hand-operated stopwatches?
A planet is orbiting a nearby star. Suppose that the star’s gravity increases over time. What effect will this increase most likely have on the planet’s path of motion?
Answer:
B
Explanation:
What is Agent Object Notation? ( For Force Diagrams. )
Explain why streets and highways have speed limits rather than velocity limits
Speed limits are used on streets and highways instead of velocity limits because speed is a scalar quantity, meaning it only has magnitude and not direction. By imposing speed limits, authorities can regulate the maximum speed at which vehicles can safely travel, regardless of their direction.
Explanation:Speed limits are used on streets and highways instead of velocity limits because speed is a scalar quantity, meaning it only has magnitude and not direction. Velocity, on the other hand, is a vector quantity that describes both magnitude and direction. By imposing speed limits, authorities can regulate the maximum speed at which vehicles can safely travel, regardless of their direction.
For example, if a street has a speed limit of 40 mph, it means that vehicles must not exceed this magnitude of speed, whether they are traveling east, west, north, or south. This ensures consistent enforcement and promotes safe driving practices for all vehicles.
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Two objects of the same mass are on two different planets. Planet A has a force of gravity that is stronger than that of Planet B. How will the weights of the objects compare to each other?
Objects of the same mass on different planets will have different weights depending on the local gravity. An object will weigh more on Planet A with stronger gravity than on Planet B with weaker gravity, even though the mass is constant.
Explanation:Two objects with the same mass on different planets will have different weights if the planets have different strengths of gravitational force. On Planet A, where the force of gravity is stronger, an object will weigh more compared to its weight on Planet B, where the force of gravity is weaker. This is because weight is the force exerted by the gravitational field of a planet on an object, which can be calculated using the equation F = ma, where m is the mass and a represents the acceleration due to gravity (g) on that planet. Therefore, if gravity is stronger on Planet A, the acceleration due to gravity is greater, resulting in a greater weight for the object, even though its mass remains unchanged.
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The weights of two objects with the same mass will differ on different planets due to varying gravitational forces. The object on the planet with the stronger gravitational force will weigh more.
The weights of objects depend on both their mass and the gravitational force acting upon them. Since both objects have the same mass but are on different planets with different gravitational forces, their weights will differ.
Specifically, the object on Planet A, which has a stronger force of gravity, will weigh more than the object on Planet B, which has a weaker gravitational force.
Weight is calculated by the equation:
Weight = Mass × Gravitational Force
If the gravitational force on Planet A is stronger, then for the same mass, the weight will be greater. For example, if an object has a mass of 10 kg and Planet A has a gravitational force of 15 N/kg, the weight will be:
Weight = 10 kg × 15 N/kg = 150 N
If the same object is on Planet B with a gravitational force of 10 N/kg, then the weight will be:
Weight = 10 kg × 10 N/kg = 100 N
Thus, even though the mass of the objects is the same, their weights are different due to the different gravitational forces on each planet.
Please i really need help..
What energy transformation occurs when a battery-powered flashlight is switched on?
A.) chemical to light to electrical
B.) electrical to light to chemical
C.) chemical to electrical to light
D.) electrical to chemical to light
Answer:
its chemical to electrical to light, I took the test and it was right, hope this helps!
Explanation:
two people are pushing a box north across the floor. on person pushes with a force of 20n, the other person pushes with an unknown force. if the net force acting on the box is 35n north, what is the unknown force?
how would you describe a meter in english units
Answer: a little longer than a yard (about 3 ft)
Explanation:
When the thermal energy of a material decreases, _____.
it melts
its temperature decreases
its temperature increases
the surrounding environment cools off
D. The surrounding environment cools off
Why do some environmental groups oppose tidal energy?
Answer:
Environmental groups oppose tidal energy because of the following potential negative consequences:
By changing the flow of tides with dams, there can be negative impact on the aquatic shoreline of the ecosystem;building of barrages may affect the sedimentation and turbidity of water within water basinsthere are animals what depend on the flow of tides for existence feeding and movement. The techology which captures the energy produced by the ties and converts them to electricity may affect the natural flow fo the tides thus impactin negatively on the aquatic and non-aquatic habitat.Cheers!
If the mass of a material is 43 grams and the volume of the material is 14 cm^3, what would the density of the material be
The longest kick in CFL history was 83.2 metres. If the ball remained in the air for 4.12 seconds