Answer:
a) given that mass=0.6kg,distance of stretching from equilibrium position x=0.9m from new ton's second law,F=ma where a is acceleration of the body.Therefore,force on the spring -mass syste
Explanation:
hope it helps
A television has a mass of 19kg what is the weight of the television
Answer:
186 N
ExplanatioN
Weight is essentially just a measurement of the force of gravity, so you can use this equation.
F = mg
Force = Mass × Acceleration due to Gravity
F = 19kg × 9.8m/s^2. (Acceleration due to Gravity on Earth.)
F = 186.02N
The mass of the earth is 5.98 × 10^24 kg and the mass of the moon is 7.35 × 10^22 kg. If the gravitational force is 1.98 x 10^20 N, what is the
distance to the moon?
r² = G.m₁m₂/F
r² = 6.67 x 10⁻¹¹ x 5.98 x 10²⁴ x 7.35 x 10²² / 1.98 x 10²⁰
r = 3.85 x 10⁸ m
A charge of 6. 4 × 10–7 C experiences an electric force of 1. 8 × 10–1 N. What is the electric field strength?.
The strength of the electric field will be 2.8×10⁵ NC⁻¹. Electric force F acted per unit positive electric charge q is known as the electric field strength.
What is the electric field strength?The electric, or Coulomb, forces exerted per unit positive electric charge q at any place, can be used to calculate the strength of an electric field E at any position.
It is given by;
E = F/q
The given data in the problem is;
q is the value of charge=6. 4 × 10⁻C
F is the electric force = 1.8 × 10⁻¹ N
E is the electric field strength =?
The electric field strength is found by the formula;
[tex]\rm E=\frac{F}{q} \\\\ \rm E=\frac{6.4\times 10^{-7}}{1.8 \times 10^-1} \\\\ \rm E= 2.8 \times 10^5 \ N/C[/tex]
Hence the electric field strength will be 2.8×10⁵ NC⁻¹.
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help me please this is for physics
It's a pleasure to be helping you today with your physics question!
Answer:
[tex]23.1m/s[/tex]
Explanation:
We want to find the initial speed of the ball.
To do this, we have to apply the formula for the time of flight of a projectile:
[tex]T=\frac{2_{v0~sin 0} }{g}[/tex]
where θ = angle of flight
g = acceleration due to gravity
v0 = initial speed
Therefore, substituting the given values into the formula, we have that:
[tex]\boxed{4.2=\frac{2~x~_{v0~sin63} }{9.8}}[/tex]
⇒ 2 ×[tex]_{v0}[/tex] ×0.8910= 9.8 × 4.2
⇒[tex]\boxed{{v0}=\frac{9.8~times~4.2}{2~times~0.8910}}[/tex]
[tex]\boxed{{v0} =23.1m/s}[/tex]
That is the initial speed of the ball.
I hope this helps you!
Good Luck with your Assignment!
One of the main arguments that animal rights advocates present is that animals have rights because they __________. A. Have moral agency B. Are capable of suffering C. Cannot defend themselves D. Are the property of humans Please select the best answer from the choices provided A B C D.
One of the main arguments that animal rights advocate present is that animals have rights because they are capable of suffering.
What are animal rights?Animal rights are ethical visions founded on the trust that animals deserve the space to live their own lives without being affected by mortal interests.
Humans have to always give freedom to animals for their living without their personal interests.
The animal is capable to suffer this is an argument that comes always on the animal rights sheet.
Hence the option B is correct.
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Sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), and chlorine (Cl-) are all examples of ___.
Question 3 options:
compounds
cations
electrolytes
anions
Answer:
Compounds
Explanation:
list 2 examples of objects demonstrating mechanical energy.
A boy holds a heavy package for one hour. He is very tired but has not done any work. Explain why he did not do any work.
Answer:he's not applying force or motion
Explanation:
p=f & m
Joe Burrow of the Cincinnati Bengals ate a turkey sandwich and an apple for lunch. Later that day, he spent 2 hours on the football field warming up for the NFL playoffs. Which of the following energy transformations occured between lunchtime and the end of Burrow's workout routine?
A. Thermal energy was converted to kinetic energy.
B. Kinetic energy was converted to chemical energy.
C. Electrical energy was converted to thermal energy.
D. Chemical energy was converted to mechanical energy.
Answer:
A Thermal energy was converted to kinetic energy
what are ohmic resistors ?
Answer:
➢ what are ohmic resistors ?▪Ans : An ohmic resistor is a resistor that obeys Ohm's law. For example: all metallic conductors (such as silver, aluminium, copper, iron etc.) The slo[e of the V-I graph gives the resistance.
[tex]#SolutionGiven[/tex]
How has florida contributed to america’s space race?.
Answer:
Florida's Cape Canaveral was central to the US victory in the space race. An isolated air force base was in Cape Canaveral near the ocean. This location allowed NASA scientists to test rockets freely.
Explanation:
A farmer pulls the cord on the bell on his barn to signal everyone that it is time to eat. Which of the following factors would most impact the speed of the sound waves coming from the ringing bell?
(A) The type of metal that the bell is made of
(B) The force that the bell was struck with to start the vibrations
(C) The direction of the wave as the sound vibrates away from the bell
(D) The temperature and medium through which the sound is traveling
(D) The temperature and medium through which the sound is traveling would most impact the speed of the sound waves coming from the ringing bell ?
Libby's dog stands 79 yard tall, and Jeff's dog stands 56 yard tall. How much taller is Jeff's dog than Libby's dog?
Answer:
-23 yards taller or sum like that
Explanation:
this isn't physics though
POTENTIAL I KINETIC ENERGY
7. Where is kinetic energy decreasing A B C D
8. Where is kinetic energy increasing A B C D
9. Which location has more potential energy then B? A B C D
10. Which location has more kinetic energy then B? A B C D
ANSWER THESE 10 FOR ME
7kinetic energy is decreasing in B
Which elements can conduct electrical charges: Metals or Non-metals?
21. True or false The half life is the time for half the stable isotope to decay.
Answer:
true
Explanation:
half life is the time an isotope takes to decay
What is the name of the measurement system used in America?.
Answer:
Imperial :DDDD
When there is a break in an electric tools insulation.
Answer:
A break in an electric tool's or machine's insulation can cause its metal parts to become “hot” or energized, meaning that they conduct electricity. Touching these energized parts can result in an electric shock, burn or electrocution.
An object of mass 40 g experiences a force of 18 N. Calculate the acceleration received by this object ?
Answer:
450ms^-2
Explanation:
m = 40g, then converting to standard unit
m = 40g/1000g × 1kg = 0.04kg
F = 18N
using the formula for Force
F = ma
Then making acceleration the subject of the formula; you Will get
a = F/m
a = 18N/0.04Kg
a = 450ms^-2
Who developed the steady-state hypothesis for the universe? When was it developed?
Answer:
The steady-state theory was first proposed by Sir James Jeans in the 1920s, but it really got a boost in 1948 when it was reformulated by Fred Hoyle, Thomas Gold, and Hermann Bondi.
Explanation:
True
Answer:
The steady-state theory was first proposed by Sir James Jeans in the 1920s, but it really got a boost in 1948 when it was reformulated by Fred Hoyle, Thomas Gold, and Hermann Bondi.
Explanation:
The steady-state theory was first proposed by Sir James Jeans in the 1920s, but it really got a boost in 1948 when it was reformulated by Fred Hoyle, Thomas Gold, and Hermann Bondi.
Based on what you know about the interactions between stars and other interstellar media, select all of the correct statements from the following list. Molecular clouds are of very low density; ultraviolet photons permeate the cloud to break up all molecules. Much interstellar dust comes from stellar atmospheres. Clouds of neutral hydrogen have masses of hundreds of solar masses. Molecular clouds are where stars are born. The intercloud medium is cool. Coronal gas is ejected from supernova explosions.
The statements 'much interstellar dust comes from stellar atmospheres', 'molecular clouds are where stars are born' and 'coronal gas is ejected from supernova explosions' are TRUE. Molecular clouds are stars in formation.
What are molecular clouds?Molecular clouds are regions into the space where celestial bodies (stars) are born in a galaxy.
The formation of stars always occurs within these molecular clouds, especially in the disk-shaped area of spiral galaxies.
Molecular clouds can be considered areas into space that are formed by very cold and dark matter.
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Please help I’ll make u brainliest please and thank you
What is the difference between heat and temperature?
A. Heat is the transfer or thermal energy; temperature is a measurment of thermal energy
B. Heat is a measurement of thermal energy; temperature is a transfer of thermal energy
Answer: A.
Explanation: I’m pretty sure that’s it, but I’m not 100% sure. But that’s the best option.
A particular light source gives off light waves with a measured wavelength of
2. 0 X 10-7 m. What is the frequency of the light source?
a. ) 6. 67 X 10-15 Hz
b. ) 6. 0 X 1011 Hz
c. ) 1. 5 X 1015 Hz
d. ) Not enough information
The frequency of the light source is 1.5 x 10¹⁵ Hz.
Frequency of the light sourceThe frequency of the light source is determined using the following equations;
c = fλ
where;
c is speed of light
f is the frequency
λ is the wavelength
f = (3 x 10⁸) / (2 x 10⁻⁷)
f = 1.5 x 10¹⁵ Hz
Thus, the frequency of the light source is 1.5 x 10¹⁵ Hz.
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PLEASE HELP I DONT WANT TO FAIL I will vote your answer 5 stars of you help!!
Answer:
a and d
Explanation:
what do you mean by efficency of simple machine is 80%?what is ouput work
It means that machine can do work up to 80% and 20% of the energy is wasted on friction
What are the products of a fusion reaction? Check all that apply. Lighter atoms energy heavier atoms a neutron a proton.
The process by which two or more tiny nuclei unite to generate a bigger nucleus is known as a nuclear fusion reaction. Heavier atoms are products of a fusion reaction.
What is nuclear fusion?The process by which two or more tiny nuclei unite to generate a bigger nucleus is known as a nuclear fusion reaction.
For example, the fusion of two hydrogen atoms produces more energy than the fusion of one helium atom, and surplus energy is expelled into space upon binding.
Hence heavier atoms are e products of a fusion reaction.
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Answer:
B C D
Explanation:
An opaque object, like a piece of wood...
Select one:
a. reflects and absorbs light but does not transmit it.
b. reflects light but does not absorb it.
c. reflects, absorbs, and transmits light.
d. transmits light.
Answer:
A. reflects and absorbs light but does not transmit it
Explanation:
I'm pretty sure it's the first one
What is the wavelength of a radar signal that has a frequency of 27 GHz? The speed of light is 3 × 108 m/s. Answer in units of m.
Explanation:
speed of light= c
wave length= L
frequency= f
c=Lf → L= c/f → L= 3 × 10⁸/ 27 × 10⁹ → L = 1/90 ≈ 0.011 m
A race boat, starting from rest, uniformly accelerates for 4 seconds. If the boat moves
70 meters during the acceleration period, what is its rate of acceleration?
Answer:
uui 2+6=8m calculator hunny work's
Which most likely indicates a chemical change has occurred?
a
O a solid substance becoming larger
a solid melting and becoming a liquid
a green liquid becoming a red liquid
a liquid freezing and becoming a solid
green liquid becoming a red liquid
Among the given options, the chemical change is option c, green liquid becoming red liquid by the some reactions. All other changes are physical changes.
What are chemical changes ?Chemical changes are those which involves the breaking or making of chemical bonds and the formation of a new product that have properties different from the initial substances.
Physical changes does not involve any change in chemical bonding. They include change in size, shape, conducting, solubility all phase changes etc are physical changes.
The change in color of a solution is due to the formation of a new product with different color indicating the occurrence of a chemical reaction. Freezing, boiling, all are physical changes. Hence, option c is correct.
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