Earths surface gravity: 9.7
Venus surface gravity: 8.8
Mercury's surface gravity: 3.7
Your answer would be D: Earth, Venus, Mercury
Hope this helps! (:
Ingrid is moving a box from the ground into the back of a truck. She uses 20 N of force to move the box 5 meters. If she uses an inclined plane to reduce her force to 10 N which of the following statements will be true?
A. She will decrease the amount of work done.
B. She will make her work efficiency 100 percent.
C. She will increase the distance the box moves.
D. All of the above.
I think the right answer is of option A.
Explanation:
Inclined plane multiplies the applied effort.So,the force applied become less.
Hope it will help u...:)
The mass of Venus is____times that of the Earth.
3/4
0.82
1.12
0.68
(pls help ASAP!)
Answer:
0.82
Explanation:
Random thing I just happened to remember
Answer:
0.82
Explanation:
Whereas Earth has a mean radius of 6,371 km and a mass 5,972,370,000 quadrillion kg, Venus has a mean radius of about 6,052 km and a mass of 4,867,500,000 quadrillion kg. This means that Venus is roughly 0.9499 the size of Earth and 0.815 as massive.
if you put something like a piece of cardboard between a magnet and an iron nail the magnets to hold the nail in place even though the magnet is not touching the nail explain how that happens
Answer:
Explanation:
Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few 'magnetic' metals and not all matter. Magnets are attracted to and repel other magnets.
Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few 'magnetic' metals and not all matter. Magnets are attracted to and repel other magnets.
What is Magnetic force?One of the four fundamental forces of nature, the electromagnetic force, results in the magnetic force, which is brought about by the motion of charges.
When two charge-containing objects move in the same direction, a magnetic attraction pulls them together. Similar to this, there is a repulsive force between charged objects travelling in opposing directions.
We discovered how moving charge envelops itself with a magnetic field in our essay on magnetic fields. The magnetic force in this sense is a force that results from interacting magnetic fields.
Therefore, Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few 'magnetic' metals and not all matter. Magnets are attracted to and repel other magnets.
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Which 3 components must be used in order for a light bulb to light?
a. Battery
b. Fuse
c. Light Bulb
d. Switch
e. Wire
Answer:
a,e,d
Explanation:
i got it right when i was doing study island
10. A car starts from rest at a stop light and reaches 20 m/s in 3.5
s. Determine the acceleration of the car.
a) 2.2m/s2
b) 7.0m/s2
c) 5.7m/s2
d) 70m/s2
When waves travel through water, why do the moving water particles continue to return to their starting position?
A. Waves transfer matter, but not energy.
B. Waves transfer both matter and energy.
C. Waves transfer energy, but not matter.
D. Waves don't transfer matter or energy.
Answer:
B
Explanation:
As the wave continues down its path, it picks up energy from the water and wind if it is blowing relative to its direction.
A diver steps off a diving platform. How fast will she be moving when she
reaches the water 10.0 m below?
A. 7.00 m/s
B. 9.90 m/s
c. 14.0 m/s
D. 196 m/s
Answer:
C. 14.0 m/s
Explanation:
[tex]v_0=0\\a=g=9.9.8\\h=10\\v_f=?[/tex]
[tex]v_f^2=v_0^2+2a \Delta h\\v_f=\sqrt{v_0^2+2a \Delta h}\\v_f=\sqrt{0+2(9.8)(10)}\\v_f=\sqrt{196}\\v_f=14[/tex]
In the diagram below, the planets' relative distances from the Sun are shown. The sizes of the planets are not drawn to scale.
Jupiter
Uranus
Mercury Earth
Sun
Venus Mars
0
Saturn
Neptune
Which of the following planets most likely has the coldest surface temperature?
A. Venus
B. Mars
C.
Saturn
D. Mercury
Final answer:
Saturn, being one of the outer planets far from the Sun, has much colder surface temperatures compared to the inner planets like Venus, Mars, and Mercury, making it the most likely to have the coldest surface temperature among the options provided.
Explanation:
The planet most likely to have the coldest surface temperature among the options provided (Venus, Mars, Saturn, Mercury) is Saturn. Surface temperatures on planets decrease with increasing distance from the Sun because the planets are heated by the Sun's radiant energy, which diminishes with the square of the distance. Saturn, being far from the Sun, has much colder temperatures compared to the inner planets.
Furthermore, planets like Jupiter, Saturn, Uranus, and Neptune are giant gas planets with substantial distances from the Sun, leading to much lower surface temperatures. Given Saturn's greater distance from the Sun compared to Venus, Mars, and Mercury, it is the planet most likely to have the coldest surface temperature among the options.
Based on the given options, Mars is the planet most likely to have the coldest surface temperature.
To determine which planet most likely has the coldest surface temperature based on the given diagram and options provided, we can consider the distance of each planet from the Sun and its effect on surface temperature:
1. **Mercury**: Being closest to the Sun does not necessarily mean it has the hottest surface temperature. Despite its proximity, Mercury has extreme temperature variations due to its lack of atmosphere to retain heat.
2. **Venus**: While Venus is closer to the Sun than Earth, it has a thick atmosphere that traps heat, resulting in a very high surface temperature making it one of the hottest planets in our solar system.
3. **Mars**: Mars is farther from the Sun than Earth and has a thin atmosphere, which leads to colder surface temperatures compared to Venus and Earth. It experiences colder conditions due to its distance and atmospheric composition.
4. **Saturn**: Saturn is a gas giant planet, and its distance from the Sun results in very cold temperatures in its upper atmosphere. However, the question specifically asks about the surface temperature, and gas giants like Saturn do not have a solid surface to measure a surface temperature.
Based on the given options, **Mars** is the planet most likely to have the coldest surface temperature. It is farther from the Sun than Venus and has conditions more conducive to lower temperatures compared to the other listed planets.
a supertanker traveling at 7.2 m/s (about 12 mph) decelerates to a halt in 12 min. Calculate the magnitude of its average deceleration in meters per second squared.
Answer: 0.01 m/s2
Explanation:
Given that:
Velocity of supertanker = 7.2 m/s (about 12 mph)
Time taken = 12 min
(Since the SI unit of time is seconds, convert 12 minutes to seconds
1 minute = 60 seconds
12 minutes = 12 x 60 = 720 seconds)
Average deceleration = ?
Recall that deceleration is obtained by dividing velocity by time taken.
i.e Deceleration = velocity / time
Deceleration = 7.2 m/s / 720 seconds
= 0.01 m/s2
Thus, the magnitude of its average deceleration is 0.01 meters per second squared.
How is lightning formed with explanation l?
Sound is a form of ____ which produces a sensation of hearing in our ears
Sound waves are ______waves.
Answer:
energy and electromagnetic
Explanation:
Tom left for his friend's house. He drove 60 km in an hour. When he got to John's house, he wondered how fast he had been driving. What formula would he use to determine his speed?
Answer: Tom drove 60 km/hr fast
Speed = Distance traveled / time taken
Explanation:
Given that:
Distance traveled by Tom = 60 km
Time taken by Tom = 1 hour
Speed = ?
Since speed is obtained by dividing distance traveled by the time taken, hence the formula to use is as follows:
speed = distance / time
Speed = 60 km / 1 hour
Speed = 60 km/hr
Thus, Tom had been driving 60 km/hr fast, using the formula "speed = distance / time"
I this example: Convection, Radiation, or Conduction
The kitchen gets warm when someone uses the oven.
Convection
becuse thats what the oven uses
Answer: Radiation
Explanation:
Radiation is like for example the sun gives out the radiation from it's heat and for the example you have the heat from the stove is warming the house up from it's radiation waves.
A child squeezes a pillow over his ears during a thunderstorm. Which wave
interaction helps decrease the sound of the thunder?
A. Reflection
B. Destructive interference
C.Constructiveinterference
D. Absorption
MATHPHYS PLEASE HELP IT SAYS ITS WRONG
Answer:
0.833 J
Explanation:
The initial kinetic energy of the spike is:
KE = ½ mv²
KE = ½ (0.52 kg) (3.7 m/s)²
KE = 3.56 J
23.4% of this energy is converted to internal energy.
U = 0.234 (3.56 J)
U = 0.833 J
Match each form of energy with its description.
Answer:
Fruit hanging is gravitational potential ( not moving making it potential and in the air so gravitational)
A box moving is kinetic (moving in the direction of the force mean kinetic)
The sand feeling warm is thermal (thermal means heat)
The lightning is electrical (self explanatory)
Radio waves is the last one I can’t see what it say
Identify the characteristics of protists. Check all that apply.
Answer:
There are no examples
Explanation:
Answer:
these are the examples, then , u have to pick which ones are animal-like protists.
stationary
able to move using specialized structures
typically autotrophs
unicellular
Explanation:
Which is a property of ionic compounds?
O soft and brittle
O low boiling point
O able to conduct electricity
o low melting point
Answer: able to conduct electricity
Explanation: refer to pic
Sort the following according to how fast sound will travel through the medium from slowest to fastest: liquid, solid, gas *
4 points
liquid, solid, gas
gas, solid, liquid
solid, liquid, gas
gas, liquid, solid
1 point
An engineer built a device out of a bicycle. When he pedals the bicycle it
causes a magnet to spin in a coil of wire and lights a lightbulb. What type of
device did he build?*
1.Generator
2.Motor
3.Electromagnet
In one town, there are several natural gas drilling sites. Scientists warn town officials that the health of the people could be affected by the natural gas wells, so in an effort to protect its citizens, the town temporarily prevents builders from developing homes and businesses within two miles of the drill sites.
This example demonstrates how science can be used to inform decision making at the ______ level.
A.
international
B.
national
C.
community
D.
state
Answer:
C. community
Explanation:
Community consists of a local residence, like a town.
Answer:
C - Community (if wrong try D )
Explanation:
I would go with c because national addresses the whole and State addresses that whole state that only the town has that problem Usa while C while only address the town since the problem is only affecting one town
What do waves transfer from place to place?
a) motion
b) energy
c) matter
d) water
Answer:
motion transfer from place to place
The standard wave format for any wave is
a a transverse
b a longitudinal
c an electromagnetic
wave. When depicting
a a transverse
b a longitudinal
c an electromagnetic
wave in standard wave
format, the direction of motion must be rotated by 90 degrees. Only one of two waves is shown at a time when placing
a a transverse
b a longitudinal
c an electromagnetic
wave in standard wave format
The standard wave format for any wave is transverse wave. When depicting longitudinal wave in standard wave format, the direction of motion must be rotated by 90 degrees. Only one of two waves is shown at a time when placing an electromagnetic wave in standard wave format.
Answer:
Transverse wave and Longitudinal wave and Electromagnetic wave
Explanation:
A crowd in a stadium is heard by a man standing 823.2 m away. The man hears the noise
2.5 seconds after the noise occurs. How fast was the sound traveling?
What’s the answer?
Answer: 329.28 m/s
Explanation:
Given that:
Distance of sound = 823.2 m
Time taken for sound = 2.5 seconds
The speed of traveling sound = ?
Speed is obtained by dividing the distance travelled by the time taken for the travel.
Speed = Distance / time
Speed = 823.2m/2.5 seconds
Speed = 329.28 m/s
Thus, the sound traveling as fast as 329.28 m/s
A popular and dangerous circus act is the human cannonball, in which a person is shot from a cannon. Suppose the cannon has a barrel that is 3.05 m long and 16700 J of work done to accelerate the acrobat. What is the force exerted by the cannon on the acrobat?
The force of about 5.47 kN will be exerted on the acrobat by the cannon.
Explanation:
If work is done on the system which is acrobat for the present case, then the ratio of work done to the distance of the contact force medium can give us the force exerted on the acrobat or system.
As here the cannon is the source of force and it has a barrel of 3.05 m that means the cannon ball should travel the distance of 3.05 m to reach the acrobat and it has done a work of about 16700 J to accelerate the cannon ball. So as per Newton's third law of motion, the force gained by the cannon ball due to the work done on it will be equal to the force exerted on the acrobat by the cannon.
Thus, as work done is the product of force with displacement. Here the force experienced by the cannon ball will be the ratio of work done to the distance covered by the cannon ball.
[tex]Force = \frac{Work done }{Distance} = \frac{16700}{3.05} = 5,475 N.[/tex]
So, the force experienced by the cannon ball is 5.47 kN and the same force will be exerted on the acrobat.
Thus, the force of about 5.47 kN will be exerted on the acrobat by the cannon.
Final answer:
To find the force exerted by the cannon on the acrobat, use the formula Work = Force × Distance. Substitute the given values and calculate the force to be 5475.41 Newtons.
Explanation:
Force exerted by the cannon on the acrobat:
To calculate the force exerted by the cannon on the acrobat, we use the formula Work = Force × Distance. Given that 16700 J of work is done to accelerate the acrobat over a distance of 3.05 m, we can find the force by dividing the work by the distance: Force = Work / Distance.
Substitute the values:
Work = 16700 JDistance = 3.05 mCalculate the force:
Force = 16700 J / 3.05 m = 5475.41 N
Therefore, the force exerted by the cannon on the acrobat is 5475.41 Newtons.
A 5.0 kg object moving at 5.0 m/s. KE = mv2 times 1/2
Answer: KE = 62.5J
Explanation:
Given that
Mass of object = 5kg
kinetic energy KE = ?
velocity of object = 5m/s
Since kinetic energy is the energy possessed by a moving object, and it depends on the mass (m) of the object and the velocity (v) by which it moves. Therefore, the object has kinetic energy.
i.e K.E = 1/2mv^2
KE = 1/2 x 5kg x (5m/s)^2
KE = 0.5 x 5 x 25
KE = 62.5J
Thus, the object has 62.5 joules of kinetic energy.
Barbara places an object in front of a mirror. The mirror produces an image that is inverted, real, and smaller than the object.
Which kind(s) of mirror could Barbara be using?
convex, because concave and plane mirrors produce only virtual images
concave, because plane and convex mirrors produce only upright virtual images
concave or convex, because both types of mirrors produce images that are inverted and real
convex or plane, because both types of mirrors produce an image that is smaller than the object
Answer:
B
Explanation:
edg
what are three processes in the body that are fueled by chemical potential energy?
What is the current through a 75 W lightbulb when it is connected to a standard (110 V) line?
Explanation:
P = IV
75 W = I (110 V)
I = 0.68 A
Click on the image. A science student wants to make an electromagnet using a copper wire wrapped around an iron bar, as shown in the image. What should the student do next?
- a. Connect the wire to a bulb
- b. Heat the wire around the bar
- c. Send a current through the wire
- d. Touch the ends of the wire together
The student will send a current through the wire after the wrapping of the copper wire. Option A is correct.
What is electromagnet?An electromagnet is a magnet whose magnetic field is generated by an electric current. Wire coiled into a coil is used to make electromagnets.
A current flowing through the wire produces a magnetic field that is focused in the hole, which serves as the coil's co
The Student wants to make an electromagnet using a copper wire wrapped around an iron bar. The student will send a current through the wire after the wrapping of the copper wire.
Hence option A is correct.
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