Explanation:
Without the metric system, we'd have a different International System of Units, the metric system is important because 1mm is 0.1cm, 1 cm is 0.01m, with the imperial system the conversion is tedious. The most important feature of the metric system is its base in scientific fact and repeatable standards of measurement
17. How long does it take a giraffe running at a speed of 33 m/s to run 200 meters !
Answer:
6600sec
Explanation:
T=sv
T=200m*33m/s
T=6600sec
When the Moon passes through Earth's penumbra, it is a:
a.Solar eclipse
b. Penumbral eclipse
c.Total lunar eclipse
d Partial eclipse
Answer: it is B
Explanation: A penumbral lunar eclipse occurs when the Moon passes through Earth's penumbra. The penumbra causes a subtle dimming of the lunar surface, which is only visible to the naked eye when about 70% of the Moon's diameter has immersed into Earth's penumbra.
Convert 13.1 miles to feet. Using one step conversion
Answer:
69,168 ft
Explanation:
constellation *
a.) the hunter
b.) Pole Star
c.) little bear
d.) pattern of stars
e.) nearest star
Answer:
D
Explanation:
a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.
I hope this helps a bit.
describe tension force (FT) in your own words
Answer In the field of physics, tension is called the force that is exerted by the action of a cable, rope, chain or other similar solid object. ... Since tension is a magnitude of force, it is measured in newtons and is always measured in a direction parallel to the chord on which it is applied.
Explanation:
a boy throws a small stone into a pond. waves spread out from where the stone hits the water and travel to the side of the pond. the boy notices that eight waves reach the side of the pond in a time of 5.0 s. what is the frequency of the waves
Answer: 1.6Hz
foe[vqefmvkeqmvkevkefmvqelkfveklveqv
When light strikes an object, what happens to some of the light?
A. Some of the light turns into sound.
B. Some of the light becomes brighter.
C. Some of the light is reflected.
D. Some of the light becomes less bright
Answer:
The light wave could be reflected by the object
Many objects within our solar system remain in constant motion and maintain predictable orbital patterns. What force governs the motion and patterns of objects in our solar system?
Answer:
Gravitational pull of the sun
Explanation:
The helium-filled balloons below are carrying negative electric charges, as shown. Attach two of the balloons to the hooks below to show what would happen if a red balloon and a blue balloon were brought near each other. Plzz help
Answer:
these are in the hooks the balloons repel each other if the hooks are isolated.
Explanation:
In electrostatics, charges of the same sign repel and of a different sign attract each other.
With this explanation we analyze the situation presented, they indicate that the balloons have a negative taste, so when these are in the hooks the balloons repel each other if the hooks are isolated.
If the hooks are connected to Earth, the poop of the balloons is neutralized, so there is neither attraction nor repulsion.
Answer:
Here you go : )
Explanation:
A car is left overnight in a parking lot. What is its instantaneous speed at 12:01 a.m.?
Answer:
0 mph
Explanation:
Answer:
0 mph
Explanation:
Find the magnitude of the sum
of these two vectors:
101 m
60.0 °
85.0 m
From the postulation of the parallelogram law of vectors, the resultant vector is 94 m.
What is the resultant vector?The resultant vector refers to that vector that can have the same effect as the two vectors acting together. In this case, we have to use the parallelogram law of vectors.
Thus;
R= √(101)^2 + (85)^2 - 2(101 * 85)cos 60
R = √17426 - 8585
R = 94 m
Learn more about resultant vector:https://brainly.com/question/12784665
#SPJ1
what are electromagnetic waves?
a) things like longitudinal waves
b) ocean waves
c) sound waves
d) electric magnetic fields that travel through a space very quickly
25%of what number is 21? Explain
Answer:
84
Explanation:
First convert
25
%
to its decimal number.
25
%
=
25
100
=
1
4
=
0.25
25
%
"of" a number means to multiply
25
%
by that number. Let
x
be the number.
0.25
x
=
21
Divide both sides by
0.25
.
0.25
1
0.25
1
x
=
21
0.25
Simplify.
x
=
84
m
1 N= 1 kg
m
82
Acceleration = m/s2
PLEASE HELP MEE ?!?!?
Explanation:
Force = mass × acceleration
force /acceleration =mass
20N /2ms^2=mass
Mass =10kg
Answer:
do you speak Spanish?? well I'll show you 1 Kg where the m is and s / ² are you going to take it where Mass m Kg they are giving you an acceleraton clue
Free falling objects accelerate at 9.8 m/s because the force of
acts on them.
speed
gravity
magnitude
motion
A physicist does 100 joules of work on a simple machine that raise a box of bioks through a heigjt of 0.2metres. if the efficiency of the machine is 60%, how much work is converted to thermal energy?
Answer:
the work converted to thermal energy is 40 J.
Explanation:
Given;
work done by the physicist,w = 100 J
height through which the book is raised, h = 0.2 m
efficiency of machine = 60% = 0.6
The useful work done by the machine is calculated as;
useful work = 0.6 x 100 = 60 J
The wasted energy = 100 J - 60 J
The wasted energy = 40 J
The wasted energy by the machine is possibly converted to thermal energy by the frictional part of the machine.
Therefore, the work converted to thermal energy is 40 J.
A beam is pivoted at one end, as shown.
The beam weighs 6.0 N and its weight acts at a point X, 40 cm from the pivot.
A force of 4.0 N is applied to the beam causing it to balance horizontally.
In which direction and where is the 4.0 N force applied?
A
downwards at 20 cm to the left of X
B
downwards at 20 cm to the right of X
Cupwards at 20 cm to the left of X
D upwards at 20 cm to the right of X
A bird flies 5km at a speed of 30 km/h. For how long
did the bird travel?
Answer:
6 hours because 6×5=30 so 6 hours is the right answer
Name three ways temperature can vary:
Answer:
Degree, Location and Time?
Explanation:
Answer:
Age. One of the most elementary factors that influence normal body temperature is age
Time of The Day. ...
Exercise or Physical Exertion. ...
Stress. ...
Meals. ...
Drugs and Smoking.
Explanation:
2) Describe the qualities and the location of supergiant stars based on the H-R diagram.
Answer:
55
Explanation:
You move a 25 N object in 10s with 100 W of power.
How far did you move the object?
Answer:
Distance = 40 meters.
Explanation:
Given the following data;
Force = 25N
Time = 10 seconds
Power = 100 Watt
To find the distance;
First of all, we would determine the work done;
Workdone = power * time
Workdone = 100 * 10
Workdone = 1000 Nm
Next, we use the following formula to find the distance;
Workdone = force * distance
1000 = 25 * distance
Distance = 1000/25
Distance = 40 meters.
sound waves have a frequency of 1000 hz what is their period?
Answer:
Solve it
Explanation:
The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles per second.
A well acts as a closed pipe. When
wind blows across the top, it
creates a fundamental frequency of
30.6 Hz. How deep is the well?
(Speed of sound = 343 m/s)
(Unit = m)
Answer:2.80 m
Explanation: you would divide 343 by 4 times 30.6
Answer:
2.80
Explanation:
Acellus
PLEASE HELP!
A person is standing on ice. He throws a snowball with a force of 4 N to the right, while the snowball pushes the
person with a force of 4 N to the left. What is the net force on the person?
A) 4 N, left
B) 8N
Answer:
A) 4n
Explanation:
He throws a snowball with a force of 4 N to the right, while the snowball pushes the person with a force of 4 N to the left. The given scenario is balanced because the same amount of force is acting in both direction.
Why does an iceberg have more HEAT than a cup of coffee.
Explanation:
Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee
Answer:
The hot coffee has a higher temperature, but not a greater internal energy. Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee.
Explanation:
Kara drops a rock from the edge of a cliff and it takes 7.00 s for the rock to reach the ground. What is the cliff’s height?
Answer:
h = 204.1 m
Explanation:
Given that,
Time taken to reach the ground, t = 7 s
We need to find the height of the cliff. We can find it using second equation of kinematics as follows :
[tex]h=ut+\dfrac{1}{2}at^2[/tex]
Here,
u = 0 (at rest initially)
a = g
So,
[tex]h=\dfrac{1}{2}gt^2\\\\h=\dfrac{1}{2}\times 9.8\times 7^2\\\\h=204.1\ m[/tex]
So, the cliff's height is 204.1 m.
Ronaldo runs across a soccer field, moving 10 meters north, then 8 meters west, then 4 meters south. His
displacement would be:
Answer:
wha is this .....................? same confusion
please help me!!!!!!. what difference between gravitational and gravity
Listed below are ACTION forces. Tell the REACTION force.
a. Your bottom pushing on your desk seat
b. A bat hitting a baseball
C.
Your finger pressing on your phone screen while texting
Answer:
a. The desk seat will push back on the bottom (reaction force).
b. baseball hit the bat (reaction force)
c. The phone screen presses on your finger (reaction force).
Explanation:
The third law of Isaac Newton explains that, to every force, there is an equal and opposite force. The initial force is called the ACTION FORCE while the opposite force is called the REACTION FORCE. The reaction force for the following action forces in this question are:
- Your bottom pushing on your desk seat (action force)- The desk seat will push back on the bottom (reaction force).
- A bat hitting a baseball (action force) - baseball hit the bat (reaction force)
- Your finger pressing on your phone screen while texting (action force) - The phone screen presses on your finger (reaction force).
At which position is the LOWEST potential energy?