Answer:
2.28m/s^2
Explanation:
F=ma
a=F/m
a=7.3/3.2
a=2.28m/s^2
What is the wavelength of a wave?
What is the angular displacement In radians of a wagon that moves 270 around a circle path
Answer:
dont go to link they will track u
Explanation:
An automatic shotgun has a mass of 10 kg. It fires 30 g bullets at the rate of 6 bullets per second with a speed of 400 m/s. What force must be applied to the gun to keep it in position?
Answer:72 N
Explanation: thats whats right
Directions: Name 2 kitchen tools, equipment or materials you are going to
store or stack in the following drawers and cabinets.
1. Flat drawer
2. Upper cabinet
3. Small drawers near countertops
4. Lower cabinets
pa answer po 4 star sa sasagot
po
Answer:
silverware and tupperware?
If Manuel exerts a force of 10 N to push a desk to the right at the same time Lynn exerts a force of 15 N to push the desk to the left, the desk will move to the
left
right
sideways
it won't move
Answer:
The desk will move to the left.
Explanation:
Since Manuel is exerting a force of 10 N to the right, and Lynn is exerting a force of 15 N to the left, it means that Lynn is exerting a force of 5 N more than Manuel, meaning that the desk will move to the left, the direction Lynn is pushing it too.
Please like and mark brainliest!
Hope it helps!
Emma draws another diagram showing how adding energy affects this wave. How does her new diagram compare to this diagram?
A
Her diagram shows higher wavelengths.
B
Her diagram shows lower wave amplitudes.
С
Her diagram shows lower wave frequencies.
D
Her diagram shows higher wave amplitudes.
HELPPPP MEEE PLEASEEEE 55 POINTS!!!
A guitar string is 0.620 m long, and
oscillates at 234 Hz. What is the
velocity of the waves in the string?
(Unit = m/s)
please help will give brainliest
A wave is an energetic disturbance in a medium that doesn't include any net particle motion. The velocity of the waves in the string of 0.620 m long which oscillates at 234 Hz is 72.54 m/s.
The distance between two successive wave crests or troughs is referred to as the wavelength. It is estimated in the direction of the wave. Typically, the wavelength is denoted by the symbol λ. The metre is its SI unit.
The relationship between wavelength and frequency is inverse. A wave's frequency decreases as its wavelength increases.
v = fλ
Here length, L = 2λ
λ = L / 2 = 0.620 / 2 = 0.31 m
v = 234 × 0.31 = 72.54 m/s
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Answer:
290.16
Explanation:
I got it right
what is resistance
Answer:
Resistance is the measure of the opposition to current flow in an electrical circuit
Resistance refers to the opposition or hindrance that a material or object offers to the flow of electric current. It is a fundamental concept in the field of electrical engineering and physics.
Resistance is measured in ohms (Ω) and is denoted by the symbol "R."
In electrical circuits, resistance is caused by various factors, including the type of material, its dimensions, and its temperature.
The primary element contributing to resistance is the collisions between electrons and atoms within the material through which the current is passing.
When an electric current flows through a conductor, such as a wire, the electrons move along the path of the conductor. However, as they do so, they encounter resistance.
This resistance causes the electrons to collide with atoms, which generates heat and dissipates energy.
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What is the speed of a Ball rolling South 50 meters in 2 seconds?
Answer:
25m/s
Explanation:
speed = distance/time = 50/2 = 25
Will give brainliest
Magnesium in group 2 has an oxidation number of +2. Which group would it easily react with?
Group 13
Group 1
Group 18
Group 16
Answer:
I think 18 not entirely sure though
Explanation:
Group 18 are the noble group so 16 + 2 = 18
A machine has an efficiency of 20%. Find the input work if the output work is 140J.
this is what I need help with
Answer: transverse wave
Explanation: the particles are moving up and down
What is the period of the wave motion for a wave with a frequency of 0.68 kHz?
____s
Answer:
T = 1.47 ms
Explanation:
We need to find the period of the wave motion for a wave of frequency 0.68 kHz.
Let the period be T. We know that,
T = 1/f
So,
[tex]T=\dfrac{1}{0.68\times 10^3}\\\\T=1.47\times 10^{-3}\ s\\\\T=1.47\ ms[/tex]
So, the period of the wave motion is 1.47 ms.
What do we call a collection of matter that does not interact with anything
else in the universe?
A. The forces that act in a collision
B. An intergalactic highway
C. An isolated system
D. A system in which collisions always occur
Answer: an isolated system
Explanation:
true or false: electromagnets are an example of how magnetism can create electricity.
true or false: electromagnets are an example of how electricity can create magnetism.
true or false: electromagnetic induction is where we use magnetism to create electricity.
true or false: you can change the amount of strength that an electromagnet has.
true or false: iron fillings can be use to show magnetic field lines around bar magnets but not around electromagnets.
I dont really know but i think the first one is true super sorry
Electromagnets are an example of how electricity can create magnetism is True statement.
What is Electromagnet?Permanent magnets are not the same as electromagnets. Coils of wire with electricity running through them make up electromagnets. An electromagnet's wire coils act like magnets when an electric current flows through them because moving charges produce magnetic fields.
The coils stop functioning as a magnet when the electricity is turned off. When magnetic forces are only required for brief periods of time, electromagnets are frequently used in electrical equipment.
They both make use of electromagnets, which use electricity to apply a magnetic field. Extremely strong electromagnets are used by wrecking yards to transfer heavy scrap metal or even entire cars from one location to another.
Therefore, Electromagnets are an example of how electricity can create magnetism is True statement.
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A 2000 Kg car going 20 m/s crashes into a wall. What is the force of the car on the wall?
Answer:
40,000N
Explanation:
Force = Acceleration × Mass
2000×20=40,000
Which of these types of EM radiation has the most energy?*
Radio waves
UV waves
Microwaves
O X-rays
Calculate the current flowing if a charge of 36 kilocoulombs flows in 1 hour.
Answer:
sorry I didn't get it, my apologies
What is the net force on a race car with a mass of 1200 kg if its acceleration is 32.0m/s2 West?
Answer:
38400N
Explanation:
F=mass×acceleration
=1200×32
=38400
A locomotive is pulling 19 freight cars, each of which is loaded with the same amount of weight. The mass of each freight car (with its load) is 37,000 kg. If the train is accelerating at on a level track, what is the tension in the coupling between the second and third cars? (The car nearest the locomotive is counted as the first car, and friction is negligible.)
Explanation:
The tension between cars 2 and 3 accelerates cars 3 through 17. That is a total of 15 cars.F = M*a, with M = 15*37,000 = 555*10^3 kga = 0.7 m/s^2Solve for F, in Newtons
A train is traveling at a constant rate of speed of 64 kilometers per hour. How many
hours will it take the train to travel a distance of 160 kilometers?
Please provide the units with it
Answer:
2.5 hours
Explanation:
we know that the train travels 64km every hour so we just need to divide 160km by 64km to see how many hours it will take
160÷64= 2.5
hope this helps chu :3
A form of energy NOT associated with the particles of objects is
thermal energy
mechanical energy
nuclear energy
chemical energy
Answer:
mechanical energy
Explanation:
because except mechanical energy all posseses particles
PLEASE HELP ME WITH THIS ONE QUESTION
What is the final temperature when 625 grams of water at 75.0° C loses 7.96 x 10^4 J? (cwater = 4186 J/kg°C)
Answer: 44.57°C
Explanation:
The following can be deduced from the question:
Specific heat of water = 4.186 J/kg
From the question, we can infer that 625 × 4.186 joules of heat will be lost when there's a 1°C drop of water.
We then calculate the amount if degrees that it'll take to cool for 7.96 x 10⁴J. This will be:
= 7.96 × 10⁴ /(625 × 4.186)
= 79600/(625 x 4.186)
= 79600/2616.25
= 30.43°C
The final temperature will then be:
= 75.0°C - 30.43°C
= 44.57°C
a tire rolls from rest to an angular velocity of 6 radians per second. the angle it turns through is 12 radians. what is the angular acceleration of the tire?
Answer:
[tex]\alpha =1.5\ rad/s^2[/tex]
Explanation:
Given that,
Initial angular velocity, [tex]\omega_i=0[/tex]
Final angular speed, [tex]\omega_f=6\ rad/s[/tex]
Angular displacement, [tex]\theta=12\ rad[/tex]
We need to find the angular acceleration of the tire. We can find it using the third equation of rotational kinematics. So,
[tex]\omega_f^2-\omega_i^2=2\alpha \theta\\\\\alpha =\dfrac{\omega_f^2-\omega_i^2}{2\theta}\\\\\alpha =\dfrac{6^2-0^2}{2\times 12}\\\\\alpha =1.5\ rad/s^2[/tex]
So, the angular acceleration of the tire is equal to [tex]1.5\ rad/s^2[/tex].
What is the mass of a 5kg object on the Moon?
The mass of a 5kg object is 5kg. Makes no difference where it happens to be located.
Answer:
The mass of a 5kg object is 5kg
Explanation:
Have a great day
1. A particle is projected with a speed of 25 ms-'at
30° above the horizontal. Find: (a) the time
taken to reach the highest point of the trajectory ,
Answer:
1.25 s
Explanation:
From the question given above, the following data were obtained:
Initial velocity (u) = 25 m/s
Angle of projection (θ) = 30°
Acceleration due to gravity (g) = 10 m/s²
Time (t) to reach highest point =?
The time taken for the particle to reach the highest point can be obtained as follow:
t = uSineθ / g
t = 25 × Sine 30 / 10
t = 25 × 0.5 / 10
t = 12.5 / 10
t = 1.25 s
Thus, it will take the particle 1.25 s to reach the highest point.
explain Heat with its unit
Answer:
As a form of energy, heat has the unit joule (J) in the International System of Units (SI). However, in many applied fields in engineering the British thermal unit (BTU) and the calorie are often used. The standard unit for the rate of heat transferred is the watt (W), defined as one joule per second
Explanation:
Hope it helps
A gazelle is running at 17.46 m/s. He sees a lion and accelerates at -1.49 m/s/s,
How fast is he running 2.39 seconds later?
Answer:
V=21.0211m/s
Explanation:
Use V=vi+at
So, V=17.46m/s+(1.49m/[tex]s^{2}[/tex])(2.39s)= 21.0211m/s
The kinetic energy of an object is equal to one half Its mass multiplied by its
speed
A squared
B cubed
C to the fourth power
D to the fifth power
Antonym for Radiation lol
Answer:
convergence is the correct answer
Answer:
absorption, concealment, containment, refrain, repression, suppression, withholding, confinement, restriction, constraint
wait no....
diffusion, emission, polarization, spread, ramification, divarication, propagation, transmission, broadcast, circulation and dissipation.
LOL