After turning off the television, you approach it. As you get close, but not touching it, the hairs on your arm start to stand up. This is an excellent example of static charge built up by
Answer:
electricity duh
Explanation:
Ralph is mowing the back yard with a push mower downward with a force of 20.0 N at an
angle of 30.0° to the horizontal. What are the horizontal and vertical components of the force
exerted by Ralph?
Answer:
Horizontal component = (10N) · sin (20°) = 3.42... N (rounded)
Vertical component = (10N) · cos (20°) = 9.39... N (rounded)
Explanation:
PLS HELP ME WITH THIS
Answer:
C
Explanation:
C
ACTIVITY 1: Research a Famous Chemist or Physicist
1) Do research on a famous chemist or physicist. Write a 300-500 word essay one of them. Use at least three different sources. Sources can include biographies, internet articles from universities, or journal articles. Wikipedia is not an acceptable source information.
Be sure to answer these questions:
* What did this scientist discover?
* How was it discovered?
* How does this discovery or invention impact the world today?
(Scientist: Nikola Tesla)
Answer:
What did this scientist discover?
Nikola Tesla discovered and created Bluetooth back in 19, November 5, 1898.
"The Transmission of Electrical Energy Without Wires", Electrical World and Engineer, January 7, 1905. Tesla, Nikola, World System of Wireless Transmission of Energy, Telegraph and Telegraph Age, October 16, 1927.
How was it discovered?
In 1901 Tesla began his work of a large high-voltage wireless energy transmission station called the Wardenclyffe Tower. ... Some devices already employ wireless energy transfer without the use of metal contacts. The power is transferred through the plastic cases using magnetic induction.
How does this discovery or invention impact the world today?
It changed the new age by listening to music with wireless earbuds.
Which of these describes Kepler’s third law of orbital motion?(1 point)
T3 ∝a2
T∝a2
T2 ∝ a3
T2∝a
Answer:
1) which planet's orbit was Kepler first studying when he began to developed his laws of orbital motion? Answer: Mars
2) which is the best description of Earth's orbit? Answer: almost circular
3) which orbital shape did most scientists in the early 1600s think the planets of our solar system have? Answer: circular
4) which of these describes Kepler's third law of orbital motion? Answer T^2 OX a^3
5) which statement describes Kepler's third law of orbital motion? Answer The square of orbital period is proportional to the cube of the semi-major axis.
Explanation:
I just took the connexus quick check and got a 100%
T2 ∝ a3 is the relation that describes Kepler’s third law of orbital motion, therefore the correct answer is option C.
What are Kepler's laws of planetary motion?There are three laws of Kepler as follows,
The orbit of the planet is elliptical and the sun is present at one of the two foci of the elliptical route followed by the rotating planet.
A line segment linking a planet and the Sun covers equal regions throughout equal intervals of the time period.
The semi-major axis length of an elliptical planet's orbit is equal to the square of the planet's orbital period.
T2 ∝ a3 is the relation that describes Kepler’s third law of orbital motion,
Thus, the correct answer is option C.
To learn more about Kepler's laws of planetary motion, refer to the link;
brainly.com/question/1455457
#SPJ2
1 oto chạy trên 1 đoạn đường thẳng từ địa điểm A đến địa điểm B phải mất 1 khoảng thời gian t, Tốc độ của oto trong nửa đầu của khoảng thời gian này là 60km/h và trong nửa cuối là 40km/h. Tính tốc độ trung bình của oto trên cả đoạn đường AB
Answer:
Explanation:
t = (½d)/60 + (½d)/40
t = (½d)/60(2/2) + (½d)/40(3/3)
t = (½d)2/120 + (½d)3/120
t = (½d)5/120
t = (½d)/24
t = d/48
v = d/t
v = d / (d/48)
v = 48 km/h
HELP me please !!!!
a bean is placed evenly on a pivot point (fulcrum) on one side of 10N weight is placed 2m from the pivot and a 40N weight a further 4m from the pivot point. How far from the pivot point must the centre of gravity of an 80N weight placed to perfectly balance the beam horizontally?
Answer:
hope you will understand
Explanation:
Five example of effect of gravitation in our daily life
Five example of effect of gravity in our daily life
Five example of free fall in our daily life
Answer:
The apple
falling to our death
the earth pulling us down
what a rock falls onto our head and we die
when a child falls into a volcano and lives for 2 seconds and then dies
Explanation:
An example of a neologism from the Internet is:
A. jam (meaning "to play music").
B. peeps (meaning "people" or "the friends you hang out with").
C. bromance (meaning "a close male friendship").
D. defriend (meaning "to remove someone from a friends list").
Answer: peeps
Explanation: meaning “people” or “the friends you hang out with”
Answer: Defriend (meaning "to remove someone from a friends list").
Explanation: Just in case someone comes by again like I did..
How does the current in a resistor change if the voltage across the resistor is
increased by a factor of 2?
If the voltage across a resistor is increased by a factor of two, the current in the resistor doubles.
What is ohm’s law?When all physical parameters and temperature are constant, Ohm's law claims that the voltage across a conductor is directly proportional to the current flowing through it.
This current-voltage connection may be expressed mathematically as,
The Equation of Ohm's Law;
V∝I
V'∝I'
Hence, if the voltage across a resistor is increased by a factor of two, the current in the resistor doubles.
To learn more the ohm's law refer to the link;
https://brainly.com/question/796939
#SPJ1
A jet airplane is in level flight. The mass of the airplane is m = 8930 kg. The airplane travels at a constant speed around a
circular path of radius R = 8.01 mi and makes one revolution every T = 0.106 h. Given that the lift force acts perpendicularly
upward from the plane defined by the wings, what is the magnitude of the lift force acting on the airplane?
At what angle is the airplane banked?
Answer:
Explanation:
The lift force will have a vertical component equal to the weight of the plane and a horizontal component sufficient to supply the needed centripetal accleration.
R = 8.01 mi = 12891 m
ω = 2π/T = 2π/(0.106(3600)) = 0.016465 rad/s
F = m√(g² + (ω²R)²)
F = 8930√(9.81² + (0.016465²(12891))²)
F = 8930√(9.81² + 3.49²)
F = 92,996.480...
F = 93.0 kN
θ = arctan(3.49/9.81) = 19.6°
Jake lifted a 10-kg bell by a distance of 0.50 meters in 0.50 seconds. How much power did Jake use?
Answer:
10 watts
Explanation:
first calculate work.
Work =force×distance cos thita
10Kg×0.50M cos 0= 5joules
Therefore, Power=Work÷ Time
Therefore, 5joules÷0.50s=10 watts.
Help me with this please
Answer:
for the secound one i think it would be 45.87 let me know if this is wrong I love to get my feed back
Explanation:
what’s 12cm in kilometers
Helen is riding down a freeway on her motorcycle at 95kilometersperhour. At this speed, how far will Helen ride in 2hours?
Please answer ASAP with science! Will give ya brainliest :) !!
Answer:
d
Explanation:
Explain what would happen if an ebonite rod charged with fur is brought together with an acetate rod charged with silk
Answer:
The ebonite becomes negatively charged, and the fur becomes positively charged.
Explanation:
When an ebonite rod is rubbed against animal fur, some of the electrons from atoms of the fur are transferred to the rod.The ebonite becomes negatively charged, and the fur becomes positively charged.(a) A positive charge (+) and a negative charge (–) attract each other. (b) Two negative charges repel each other. (c) Two positive charges repel each other.
The driver of a 1,500 kg car is traveling at 25 m/s. A deer runs into the road and the driver slams on the brakes. If it takes the car 5 seconds to stop, the acceleration of the car is ____ m/s2.
a.
0.25 m/s2
b.
-0.25 m/s2
c.
5 m/s2
d.
-5 m/s2
Answer:
c.
5 m/s2
Explanation:
Δv = at
a = Δv/t
a = (0 - 25)/5
a = 5 m/s²
How many significant figures are in the following measurements? a. 3000000000 m/sA bike rider accelerates uniformaly at 2.0m/s^2 in 7.0 s. What was the speed of the object after 2.0 seconds?
Answer: 1 sig fig
Explanation: because 0s aren‘t significant and yes decimal points matter but after the decimal it’s a 0. So it is 1. If it was 0.30 it would be 2 sig figs but 0.03 would be one sig fig.
Book A with a mass of 1.00 kg is placed on a horizontal table. Book B with a mass of 0.500 kg is placed on top of book A. What is the magnitude of the normal force exerted on book A by the table?
Answer:
Explanation:
N = mg = (1.00 + 0.500)(9.81) = 14.7 N
The magnitude of the normal force exerted on book A by the table is 14.7 N
ForcesFrom the question, we are to determine the magnitude of the normal force.
The normal force ca be calculated by using the formula
[tex]F_{n} = mg[/tex]
Where [tex]F_{n}[/tex] is the normal force
m is the mass
and g is the gravitational field strength ( g = 9.8 m/s²)
The mass will be addition of the masses since Book B is placed on top of the book.
Thus,
m = 1.00 kg + 0.500 kg = 1.50 kg
Then,
[tex]F_{n} = 1.5 \times 9.8[/tex]
[tex]F_{n} = 14.7 \ N[/tex]
Hence, the magnitude of the normal force exerted on book A by the table is 14.7 N
Learn more on Forces here: https://brainly.com/question/13707444
A ball of mass 2 kg is being pulled sideways by a force 3 N to the right, and a force of 8N to the left - these are the only forces acting on it..
1.) What is the net force in the horizontal (x) direction?
2.) what is the acceleration in the horizontal (x) direction?
Answer:
Explanation:
1.) What is the net force in the horizontal (x) direction?
Fnet = 8 - 3 = 5 N left
2.) what is the acceleration in the horizontal (x) direction?
a = Fnet/m = 5/2 = 2.5 m/s² left
PLz help Asap 10 POINT
I MIGHT GIVE BRAINLIST IF RIGHT AND IF I CAN.
Answer:
Mars has a thin atmosphere
Explanation:
Okay, so this is going to sound crazy but bare with me. Mar's atmosphere is thin. There is little to no gravitational pull for the atmosphere to stay. Also, no, humans will not be able to live on Mars because the atmosphere, quite literally, contains 1% oxygen. Hopefully this helps! Earth's is thick because of the gravitational pull and gases in Earth's surface.
What is the major difference between metallic bonding and ionic bonding?
Answer:
The key difference between ionic bonding and metallic bonding is that the ionic bonding takes place between positive and negative ions whereas the metallic bonding takes place between positive ions and electrons.
Explanation:
About (metallic bonding) → Metallic bonding is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons and positively charged metal ions.
About (ionic bonding) → Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, or between two atoms with sharply different electronegativities, and is the primary interaction occurring in ionic compounds
I hope this helps!
How many milliliters are in 3.2 L? (1000 mL = 1L)
Answer: 3200ml.
Please give brainliest.
Answer:
3200ml
Explanation:
[tex](3.2L)\frac{1000mL}{1L} = 3200mL[/tex]
i commit to uphold the truth by
Answer:
the truth was committed to upload by me
Explanation:
passive voice
một viên đạn được bắn lên với vận tốc v0=800m/s theo phương hợp với mặt phẳng nằm ngang một góc 30 độ. xác định tầm xa của viên đạn
Step 1 First Draw a Diagram.
Step 2 Identify the givens
g= -9.8 m/sec2
x0 = 0 m
Y-Yo= 80m
V0 = 800m/s -30o inclined from horizontal
Xf= ?
t = ?
Step 3 * A 2 dimensional problem so break it down into x component and y component
Step 4 x component
x= [Vox ][cos 30o][t]
x= [800m/s][cos 30o][tsec]
x=[692.8m/s][tsec] <---------------Need t
Step 5 y component
Y-Yo= Voy - 1/2gt2
80m= -[v][sin30o][t] -1/2gt2
1/2gt2+[v][sin30o][t]+80m=0 <-------Form Quadratic Equation
Solve for t
t= -[v sin 30] +/- [(v sin 30)-(4)(1/2)(9.8)(80)]1/2
(2)(1/2)(9.8)
t= 400+/- 398
9.8
t= 0.2 sec
Step 6 Plug this into initial x component equation
x=[692.8m/s][tsec]
the game in the suburbs and rural areas of the Philippines is/are called_____??
Answer:
Games such as Patintero, Tumbang Preso, Piko, Sipa, Turumpo, and many others, are still played daily in neighborhoods.
Explanation:
Hope this helps... Maybe
what are adaptations needed for animals to survive on grassland?
Answer:
short teeth, short hair, camoflauge, and speed
Explanation:
Answer:
speed and awareness
Explanation:
Kinetic and Potential energy
The main difference between potential and kinetic energy is that one is the energy of what can be and one is the energy of what is. In other words, potential energy is stationary, with stored energy to be released; kinetic energy is energy in motion, actively using energy for movement.