Answer:
I think a magnet can cause something to move if it has its own magnetical force or whatever you call it i forgot but you put the same pole to that sources pole. So move North pole to the other North Pole
Explanation:
Please help 20 points
only real answers or I WILL REPORT YOU
The three ways waves change direction are reflection, refraction, diffraction.
In 3-5 complete sentences, compare those three ways that waves change direction.
A hammer has an input distance of 9 cm and an output distance of 3 cm. What is its ideal
mechanical advantage?
Answer:
3cm should be the answer correct me if I'm wrong
Explanation:
Divide the input by the output
The ideal mechanical advantage of the hammer is the ratio of its input distance to the output distance . The ideal mechanical advantage of the hammer with input distance of 3 cm and output distance of 9 cm is 3 cm.
What is mechanical advantage?Mechanical advantage of an machine or an equipment is the measure that how much input force is changed to output. It is the ratio of output force to the input force. This ratio is the actual mechanical advantage of the machine.
The actual mechanical force also accounts for the frictional force also. The amount of input force needed to overcome the friction is considered here.
The ideal mechanical advantage the distance measurements are used since it is difficult to measure the input/output force.
given that, input distance = 9 cm
output distance = 3 cm.
ideal mechanical advantage = input distance/ output distance
= 9 /3 = 3 cm.
Therefore, the ideal mechanical advantage of the hammer is 3 cm.
To find more on mechanical advantage, refer here:
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A toy car was used in an investigation about unbalanced forces. During which of the following scenarios was the car not experiencing an unbalanced force? *
20 points
1.The toy car speeds up as it rolls down a ramp.
2.The toy car travels forward at a constant speed.
3.The toy car slows down as it rolls up a hill.
4.The toy car changes direction at a constant speed.
Answer:
Number 2
it is using Newton’s first law.
also known as the law of inertia
look that last word up
Explanation:
Explain how water changes state using physical changes.
Are there the same number of water molecules after the change?
How does this prove the Law of Conservation of Mass?
Answer:
Explanation:
Gbuu g by. Out vvuitguvvigvvvug. It uby
Please help I have a time limit of 15 minutes and I only have 5 left
Answer: I'm pretty sure it's either crest or trough... So, the official answer is Crest because this picture helped me...
Which process would correctly calculate the frequency of a wave?
dividing speed by wavelength
dividing frequency by wavelength
multiplying frequency by period
dividing wavelength by period
SOMEBODY PLEASE ANSWER! This test determines my grade.
Answer:
dividing speed by wavelength
Explanation;
frequency=speed:wavelenght
Answer:
A- Dividing speed by wavelength
Explanation:
Just took the test
what do you think a divergent (constructive) boundary is? How do plates interact with each other?
Jody drives 120 miles south from Kingston, NY to Princeton, NJ. If she drives 60 mph, how long will it take her to make the trip?
cannot be determined
1 hour
2 hours
4 hours
people keep giving really stupid answers-
sorry if its wrong but 2 hours??
Pls help!
What is movement of energy from one system to another also known as?
Answer:
Either energy transformation or energy conversion
Depends on which one you were taught.
In 3-5 complete sentences, compare the three ways that waves change direction.
Answer:
There are many ways to compare waves and how they change direction. The most common way is through the wind. This is different from human force because of direct contact in the wind and human force. However they both intact something physically moving the ocean. This compares how different waves move.
Explanation:
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Answer:
Reflection is the change in direction of a wave between two different objects such that the wave returns to the medium from which it began. In other words, the waves are sent back towards the source. Sound waves, light waves, and water waves can all be reflected.
Explanation:
Incident Ray – the wave/ray traveling towards a surface
Angle of Incidence – the angle at which the traveling wave/ra
y hits a surface
Equal (or Normal) – divides the two rays (incident / reflected) into two equal angles
Angle of Reflection – the angle at which the reflected wave returns towards the original medium
Reflected Ray – the wave/traveling away from the “hit” surface, and now traveling towards the original medium
How long will it take for an object to hit the ground when dropped from a height of 7m?
Answer:
Multiply the time by the acceleration due to gravity to find the velocity when the object hits the ground. If it takes 9.9 seconds for the object to hit the ground, its velocity is (1.01 s)*(9.8 m/s^2), or 9.9 m/s.
Explanation:
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HELP!! ILL GIVE BRAINLIEST!
Imagine a bird is diving into the ocean. At what point is the bird’s kinetic energy the greatest?
Answer:
when she went in the ocean.
Explanation:
How is the structure of an atom best described?
a negative core surrounded by densely packed matter
a neutral core surrounded by mostly empty space
a positive core surrounded by mostly empty space
a positive core surrounded by densely packed matter
Answer:
the right anwser is A NEUTRAL CORE SURROUNDED BY MOSTLY EMPTY SPACE
Explanation:
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URGENT!!! NEED ANSWER ASAP Students are completing a table about a particular subatomic particle that helps make up an atom. The students have filled in one cell of the table so far.
A 3-column table with 2 rows. The first row has entries Mass (a m u), location, charge. The second row has entries 1, nothing, nothing.
Based on the information shown, which statement about the subatomic particle must be correct?
Its location is in the nucleus, because the particle is a proton or a neutron.
Its location is in the nucleus, because the particle is a neutron or an electron.
Its charge is +1, because the particle is a proton.
Its charge is 0, because the particle is a neutron.