Answer:
[tex]v_{1} = 19 m/s[/tex]
Explanation:
[tex]v_{1} = \frac{(v_{2} + u)}{2}[/tex], where [tex]v_1[/tex] = avg. velocity, [tex]v_2[/tex] = final velocity, and [tex]u[/tex] = initial velocity.
What is LCR circuit??
An LCR circuit is a circuit which has Inductors , Capacitor and Resistors connected to each other in an specific way.
An RLC circuit is an electrical circuit consisting of a resistor, an inductor, and a capacitor, connected in series or in parallel. The name of the circuit is derived from the letters that are used to denote the constituent components of this circuit, where the sequence of the components may vary from RLC.
convert .54g to dekagrams. NEED HELP!!!!!!
Answer:
.54 grams = .054 dekagrams
Explanation:
efficincy of simple machine is 60% what does it mean?
Explanation:
By the statement, Efficiency of a machine is 60% it is meant that 'The work output is 60% of the work input'. If you apply 100J of energy for a machine, it will be able to life load of 60 J only
what is x-rays ? and how it's formed ?
X - rays are highly penetrating electromagnetic radiations that are formed when the cathode rays strikes a dense metal.
It has many characteristics such as :
bears no charge.travels with the speed of light.can ionize gases.
A car moves at 20 m s' for 15 minutes. Calculate the distance travelled
Explanation:
Calculating this according to the m/s rate
Now solving the question
If the car goes 20 m/s mathematically we can generate it as
15 × 60 = 600 secs
If the car goes 20 meters per every second it means
The car will go 20 meters for 900 secs
Which is 900 ×20 = 18000m/s
=18000÷1000 = 1km
Therefore the answer is 18km
If mass is measured in kg and acceleration is measured in m/s^2, what units would force be measured in? This unit is also know as a newton (N).
Using Newtons second law
[tex]\\ \sf\longmapsto Force=Mass\times Acceleration[/tex]
[tex]\\ \sf\longmapsto Force=kgm/s^2[/tex]
[tex]\\ \sf\longmapsto Force=Newton(N)[/tex]
Find the exact value without a calculator. Tan 7pi/12=sin7pi/6/2 /cos7pi/6/2
Answer:
jh7j7j678j
Explanation:
[tex]-\frac{\sqrt{(x^{\frac{1}{2} }+1)(x^{\frac{1}{2} }-1) } }{x^{\frac{1}{2} }-1}[/tex]
How much net force is required to accelerate a 10 kg mass at 1.5 m/s2?
Answer:
F = 15N
Explanation:
The explanation is on the above photo.
This is the location of an object.
Yes. This is indeed the location of an object.
Answer:
wdym
Explanation:
not much information
What makes a good scientific question? (1 point)
o It helps decide the right choice in a situation.
o It directs how to apply knowledge.
O It is answered by observation and evidence.
O It is outside the bounds of natural phenomena.
C. It is answered by observation and evidence.
Good scientific explanations are defined, measurable and controllable. They can be answered by an experiment.
A force is applied to a box for 6.10s causing the 5.20kg box to come to accelerate from rest to 2.80m/s. What was the force on the box?
Explanation:
f = ma
m = 5.2kg
u = 0
V= 2.80m/s
t = 6.10s
a =(2.8- 0)/6.10
a = 2.8/6.10
a = 0.46m/s²
f = 5.2 X 0.46 =2.392N
f = 2.392N
A car slows down from 27.7 m/s
to 10.9 m/s in 2.37 s.
What is its acceleration?
Answer:
- 7.088 m/s²
Explanation:
As we know that,
★ Acceleration = Change in velocity/Time
→ a = (v - u)/t
Here,
Initial velocity (u) = 27.7 m/sFinal velocity (v) = 10.9 m/s→ a = (10.9 m/s - 27.7 m/s)/2.37 s
→ a = -16.8/2.37 m/s²
→ a = -7.088 m/s² [Answer]
Negative sign denotes that the velocity is decreasing.
Answer:
[tex]\boxed {\boxed {\sf -7.09 \ m/s^2}}[/tex]
Explanation:
We are asked to find the acceleration of a car. Acceleration is the change in velocity with respect to time. We will use the following formula:
[tex]a= \frac {v_f-v_i}{t}[/tex]
In this formula, [tex]v_f[/tex] is the final velocity, [tex]v_i[/tex] is the initial velocity, and [tex]t[/tex] is the time. The car slows down from 27.7 meters per second to 10.9 meters per second in 2.37 seconds. Therefore:
[tex]v_f[/tex]= 10.9 m/s [tex]v_i[/tex]= 27.7 m/s [tex]t[/tex]= 2.37 sSubstitute the values into the formula.
[tex]a= \frac{ 10.9 m/s-27.7 m/s}{2.37 \ s}[/tex]
Solve the numerator.
10.9 m/s - 27.7 m/s= -16.8 m/s[tex]a= \frac{-16.8 \ m/s}{2.37 \ s}[/tex]
Divide.
[tex]a= -7.088607595 \ m/s/s[/tex]
[tex]a= -7.088607595 \ m/s^2[/tex]
The original measurements of velocity and time have 3 significant figures, so our answer must have the same. For the number we found, that is the hundredth place. The 8 in the thousandth place tells us to round the 8 in the hundredth place up to a 9.
[tex]a \approx - 7.09 \ m/s^2[/tex]
The acceleration of the car is approximately -7.09 meters per second squared. The acceleration is negative because the car is slowing down.
A 1150 kg car is on a 8.70° hill. Using X-Y axes tilted down the plane, what is the y-component of the weight? (Unit = N)
Answer:
Explanation:
Assuming the x axis lies along the slope.
Fy = mgcosθ = 1150(9.81)cos8.70 = 11,151.6937... = 11.2 kN
infrared thermometers are commonly called laser thermometers true or false?
Answer:
FalseExplanation:
They are sometimes called laser thermometers as a laser is used to help aim the thermometer, or non-contact thermometers or temperature guns, to describe the device's ability to measure temperature from a distance. Infrared thermometers are a subset of devices known as "thermal radiation thermometers".
write two differences between practical machine and ideal machine
Answer:
Ideal machines are said to have parts which are weightless , frictionless and strings if any are inextensible. Practical machines have parts which have weights, friction and it causes some loss of work done. So these are the differences between Ideal Machine and Practical Machines.
A particle is projected from a point on a horizontal plane and has an initial velocity of 28root 3 m/s at an angle of 60 degree .find the greatest heights reached by the particle
Answer:
uujjjjjctc7tox7txr9ll8rz8lr5xl8r6l8dl85x8rl5x8rl5x8rl5xrx8l58rk5xr8l5xr6l8xr68lc
Warm air is more dense than cool air. Warm air is less dense than cool air Warm air and cool air have the same density
Answer:
You are exactly right. The molecules in hot air are moving faster than the molecules in cold air. Because of this, the molecules in hot air tend to be further apart on average, giving hot air a lower density. That means, for the same volume of air, hot air has fewer molecules and so it weighs less
Can y’all please help because my teacher didn’t really explain it to me
Answer:
8. Dinitrogen trioxide:
[tex]{ \sf{N_{2} O_{3}}}[/tex]
9. Nitrogen:
[tex]{ \sf{N}}[/tex]
10. Lithium oxide:
[tex]{ \sf{Li_{2}O}}[/tex]
11. Phosphorus trifluoride:
[tex]{ \sf{PF_{3} }}[/tex]
12. Vanadium oxide:
[tex]{ \sf{V_{2} O_{3} }}[/tex]
13. Silicon tetrafluoride:
[tex]{ \sf{SiF _{4}}}[/tex]
14. Sodium phosphide:
[tex]{ \sf{Na_{3} P}}[/tex]
A physics student solving a physics problem has obtained the following four equations that describe the physics of a system of masses connected:
1. m2 = 3m1
2. --mig cosθ + T= miai
3. a1 = a2
4. m2g-T=m2a2
where g = 9.80 meter/ second^2 and θ = 60° are knowns, and mı, m2, a1, a2, and T are unknowns.
a. The problem requires the student to evaluate which are the unknowns that the student would like to eliminate from the equations?
b. The student decides to eliminate the unknown m2. Which two of the equations can be used to eliminate m2?
Answer: m1, m2, a1, T
Explanation:
An armadillo and Earth attract each other gravitationally. Which experiences the greater gravitational force, or do they experience the same force magnitude?
a. Same force magnitude
b. Earth
c. Armadillo
Answer:
a. Same force magnitude
what is light emitting diode
Answer:
A light emitting diode (a semiconductor diode which glows when voltage is applied.
when ideal gas is heated at constant pressure then P.E..
(a)decreases
(b)increases
(c)remains the same
(d)none of these
Answer:
B increases hope this is right
Mary finishes a marathon at a speed of 2 m/s. If her
acceleration period is 4 seconds, then what is her average
acceleration (in m/s?)?
Explanation:
v2 = v1 + at
v2 final speed
v1 initial speed
a acceleration
t time
2 = 0 + 4 a
a = 1/2
Give reason The SI system of unit is better than the MKS system
There are two primary reasons that SI is better than MKS. Both reasons come under the category that the MKS system is a proper subset of SI. That means that SI will do everything that MKS does, so you do not lose anything of MKS in going to SI but the are things that SI offers that MKS does not
if an object is accelerating at 4 m/s^2 and has a mass of 8 kg, what is the net
force (in newtons, N) on the object?
Answer:
The force applied is 32 N
Explanation:
F = ma
F = 8 × 4
F = 32 N
Answer:
[tex]\boxed {\boxed {\sf 32 \ Newtons}}[/tex]
Explanation:
We are asked to find the net force on an object. According to Newton's Second Law of Motion, force is the product of mass and acceleration. Therefore, the formula for calculating force is:
[tex]F= m \times a[/tex]
The mass of the object is 8 kilograms and its acceleration is 4 meters per second squared.
m= 8 kg a= 4 m/s²Substitute these values into the formula.
[tex]F= 8 \ kg \times 4 \ m/s^2[/tex]
Multiply.
[tex]F= 32 \ kg *m/s^2[/tex]
Convert the units. 1 kilogram meter per second squared is equal to 1 Newton. So, our answer of 32 kilogram meters per second squared is equal to 32 Newtons.
[tex]F= 32 \ N[/tex]
The net force on the object is 32 Newtons.
if there were fewer plants on earth how would our atmoshere change
less oxygen?
Explanation:
Answer:
if there was less plants, there would be more carbon dioxide (and less oxygen) because they wouldnt be using it up for food.
Explanation:
Object X is attracted to object Y. If object Y is negatively charged, what can you say about object X? (a) It is positively charged (b) It is negatively charged (c) It is electrically neutral (d) Object X may be positively charged, but it is possible it is also electrically neutral with an induced charge separation
Answer:
a) Object X is positively charged
Explanation:
Unlike charges attract each other
Like charges repel each other
The object X will be positively charged through charging by conduction.
The given parameters:
Object Y = positively chargeA charge can be produced by conduction. This method of charge generation involves charging a neutral body by placing it in contact charged body.
When object X is placed in contact with object Y, which is negatively charged, the negative charges of object Y repels negative charges of object X. This leaves object X with excess protons, thereby becoming positively charged.
Thus, the object X will be positively charged through charging by conduction.
Learn more about charging by conduction here: https://brainly.com/question/8418256
You are taking a turn at 30.0 m/s on a ramp of radius 25.0 m. What is your acceleration?
Acceleration = v^2 / r
Acceleration = 30^2/25
Acceleration = 900/25
Acceleration = 36 m/s^2
Is the following research description experimental, descriptive, or applied?
Jenna does a study to see if sugar and hyperactive behavior in children are related.
Answer:
It is experimental. She will testing or investigating on children. So yeah, it is experimental
Help pls, see picture. Will mark Brainliest
Answer:
B
Explanation:
the graph shows the line going up (accelerating) and it isn't curving like d so it doesn't stop accelerating
Hope this helps :)
