Answer:566.3
Explanation:
A box is in contact with a floor with a coefficient of friction of 0.50. If the box has a normal force of 500N, what force do have to push with to move the box? HELPPP
Answer:
250N
Explanation:
Coefficient of friction=frictional force/Normal force
coefficient of friction= 0.5Normal force(R)= 500NFrictional force (Fr)= ?0.5= Fr/500N
Fr= 500N×0.5 = 250N
Fr= 250N
4. Make new charts for each of the following scenarios. Predict what you think the graphs will
look like, and explain your reasoning.
a. The man starts three meters from the house and accelerates towards the tree.
b. The man stands still while he talks on his cell phone at the middle of the sidewalk, then
walks toward the house at a constant rate trying to get better cell reception. He comes to
a sudden stop when the coverage is good (about a meter before the house) and stands
still to finish his conversation.
c.The man starts close to the house, stands still for a little while, then walks toward the
tree at a constant rate for a while, then the slows to a stop.
Draw a position/time, velocity/time, and a acceleration/time graph for each scenario
Uh, Road work ahead?!?!
Answer:
what? im kinda confused....
what do you mean by road work ahead??
Describe the difference between uniform and non-uniform motion.
please put examples
Answer:
this is only there definition
Explanation:
☺️
Which of the following is a vector?
mass
time
acceleration
speed
Answer:
acceleration is a vector quantity the explanation is below
Explanation:
Acceleration is a vector quantity. Acceleration has both magnitude and direction. For example, 9.8ms2 downward or −9.8ms2 vertically is an acceleration.
which kind of energy transformation occurs in a gasoline-powered car?
F. Chemical energy is converted into mechanical energy.
G. Mechanical energy is converted into light energy.
H. Light energy is converted into sound energy.
J. sound energy is converted into chemical energy.
Two people are each
pulling on the opposite
ends of a rope. If they
are pulling on the rope
with equálbut opposite
forces what will happen
to the rope?
Answer:
the rope should break
Explanation:
she with equal amounts of pulling are on each side then the rope should slowly start to tare apart and snap/break.
hope this helps you
one sports where it would be good to have long thick bones , explain your answer
Answer:
Marathon/Long distance running, swimming, etc
A 4.5 kg box is being pulled by a girl using a string that makes an angle of 20° horizontal. Find the force of friction if the force exerted on the string is 15 N and the coefficient of friction is 0.5.
Answer:
Fcoso-f =ma. F= ma 15 = 4.5 a then get acceleration. Fcoso- umg = ma then get friction
A car with a velocity of 30 m/s accelerates uniformly at the rate of 2.0 m/s2 for 10 s. What is its final velocity?
15. How many neutrons are in the nucleus of an atom that has an atomic mass of 36 and an
atomic number of 25
trong trường hợp nào các vật rơi tư do với cùng một gia tốc g ?
A cannonball is fired from a cliff that is 50 meters above the ground. The cannonball is fired horizontally with a speed of 120 meters per second.
Calculate the horizontal distance that the cannonball will travel.
The horizontal distance that the cannonball will travel is 383.33m
In order to find the horizontal distance, we will use the formula for calculating the range expressed as:
[tex]R = u\sqrt{\frac{2H}{g} }[/tex] where:
u is the velocity
H is the height
g is the acceleration due to gravity
[tex]R = 120\sqrt{\frac{2(50)}{9.8} }\\R = 120\sqrt{\frac{100}{9.8} } \\R=120\times 3.1943\\R=383.33m[/tex]
Hence the horizontal distance that the cannonball will travel is 383.33m
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You want to calculate the net force acting on an ice skater who is speeding up while
skating. Which of these is a force you would not add in to calculate the net force?
upward vertical force from the ice that supports the skater
force that the skater exerts on the ground
force exerted on the skater by the ground in reaction to the force the skater
exerts on the ground
gravity
Answer:
force that skater exerts on the ground
Explanation:
Bettina was sick for several weeks, and her slow recovery has made her realize that she is not as healthy as she thought she was. She has never been fond of exercise and is intimidated at the thought of going to a gym. Walking seems manageable, and there are some hills in her neighborhood. But she knows that is not aerobic exercise. Is this a good place to start?
OPTIONS:
A.
No, walking is neither aerobic nor anaerobic exercise.
B.
No, exercise that is not aerobic never does much good.
C.
Yes, but she will not have any health benefits unless she escalates it.
D.
Yes, she can slowly improve her capacity and move to aerobic exercise later.
Yes. Walking the hills in her neighborhood is a wonderful place to start.
D. She can slowly improve her capacity and move to aerobic exercise later.
Yes, she can slowly improve her capacity and move to aerobic exercise later. The correct option is (D).
Even if it isn't initially aerobic, starting with walking is a wonderful place to start, especially if Bettina isn't used to exercising frequently. Walking is a low-impact activity that is simple to fit into daily life and can be used as a gentle introduction to developing a habit of physical activity.
Even while walking isn't typically thought of as an aerobic workout, it nevertheless has several health advantages, including enhancing cardiovascular health, boosting energy, lowering stress, and aiding in weight management. Bettina can eventually increase the length and intensity of her walks to make them aerobic as she steadily increases her endurance and fitness level through walking.
Hence, the correct option is (D). Yes, she can slowly improve her capacity and move to aerobic exercise later.
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A dog has the mass of 4kg and runs at a velocity of 3m/s. What is its KE
Answer:
m=4kg
v=3m/s
KE=1/2mv^2
KE=1/2×4×3×3
KE=18Joules
Explanation:
PLS MARK BRAINLIEST
ok i bet this one will suprise you when i tell you the answer
how many atoms are in the world no looking it up i want your honest gusse.
Answer:
i don't know like maybe
Explanation:
1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Fun facts about Israel
Answer:
It's Real...
Explanation:
Answer:
Israel Is Part of the Holy Land
Explanation:
Which line on the graph represents the greatest positive acceleration?
D
A
B
C
Answer:
I think it's B, if that's wrong I apologize. You might want to do more research on it and find the correct answer if you can, if it's right then you could like my comment, so others know if not give it 1 star, keep it low lol.
Explanation:
The line that represents the greatest positive acceleration is A.
In a velocity-time graph, the slope of the line represents the acceleration. The greater the slope, the greater the acceleration. Line A has the steepest slope, so it represents the greatest positive acceleration.
Line B has a positive slope, but it is not as steep as line A. Line C has a negative slope, which means it represents negative acceleration, or deceleration. Line D is a horizontal line, which means it represents a constant velocity, or zero acceleration.
Therefore, the line that represents the greatest positive acceleration is A.
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what is net netforce?
Equation of Exclusive OR gate
Garade10
2. A 2 kg mass has an acceleration of 3 m/s2. What is the force of the mass?
Answer: 6N
Explanation:
F=ma
F = 2kg*(3 m/s^2)
F = 6 kg*m/s^2
[kg*m/s^2 = 1 Newton]
F = 6 N
A mason is shot with a constant speed of 7.5 x 10²m/sinto a region, when an electric field produces acceleration on the mason of magnitude 1.5 x 1025 ms-2 directed opposite to the velocity. Find the time taken (b) the distance covered by the mason before coming to rest and (c) the time for which it remains at rest.
Answer:
Distance, d = 0.1 m
It is given that,
Initial velocity of meson,
Finally, the meson is coming to rest v = 0
Acceleration of the meson, (opposite to initial velocity)
Using third equation of motion as :
s is the distance the meson travelled before coming to rest.
So,
s = 0.1 m
The meson will cover the distance of 0.1 m before coming to rest. Hence, this is the required solution.
How are melting and carving ice sculptures both examples of physical changes ?
Answer:
they are still keeping the physical componets justbin a different shape
Explanation:
Answer:
As an ice cube melts, its shape changes as it acquires the ability to flow. However, its composition does not change. Melting is an example of a physical change .
a person walks 4m[w] then 4m[S] then 4m[E] and finally 4m[N]. What is the persons displacement? what is the distance travelled?
None
because 9 + 5 = 10 why? because 4 of the ones in nine are liars pretending to be apart of the number so in reality there is only 5 and 5+5=10
What is the magic triangle used for in science? 10 points
Speed, distance and time can be calculated using a magic triangle. D (the distance) goes in the top of the triangle, S (speed) goes in the bottom left of the triangle and T (time) goes in the bottom right of the triangle.
21. A fisherman catches two sturgeons. The smaller of the two has a measured length of 93.46 cm (two dec- imal places and four significant figures), and the larg- er fish has a measured length of 135.3 cm (one deci- mal place and four significant figures). What is the total length of the two fish?
Answer:
135.3 cm + 93.46cm
= 228.76 cm
So total length of two fish is 228.76
What causes the amount of gravitational force to change?
Answer:
Mass and Distance
Explanation:
mass and distance affect the strength of gravitational force on an object.
How does that motion change for the object if the forces on the object are unbalanced?
When the forces on the object are unbalanced, the object will move in the direction of the greater force.
What is Newton's first law of motion?Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that path unless acted upon by an external force and the object will tend to move in the direction of the applied force.
What is Newton's second law of motion?Newton's second law of motion states that the force applied to a body is directly proportional to the acceleration of the body.
F = ma
Unbalanced forces on a bodyIf the net force acting on a body is greater than zero, the body will tend to move in the direction of the greater force.
Thus, when the forces on the object are unbalanced, the object will move in the direction of the greater force.
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HELPPPP
The graph is the path Beth took on a walk.
A graph with horizontal axis time (seconds) and vertical axis position in (meters). The line runs in 2 straight segments from 0 seconds 2 meters to 6 seconds 8 meters to 10 seconds 0 meters.
What does the line from time 6 to 10 indicate?
A. Beth slowed down considerably.
B. Beth turned around and went the other direction.
C. Beth sped up considerably.
D. Beth went farther away from the origin.
Answer:
3
Explanation:
3
Answer:
B. Beth turned around and went the other direction.
Explanation:
Trust Me
(I answered this yesterday but put it in comments, wow I am NOT tech savvy!)