Answer:
w = 4.712 10⁻³ rad / s
Explanation:
For this exercise, the time it takes for the bullet to travel the distance of 2R must be equal to the time that the hole must travel half a circle.
Let's start by calculating the time it takes for the bullet, which is going at constant speed.
v = x / t
t = x / v
t = 2R / v
t = 2 0.10 / 300
t = 6.666 10⁻⁴ s
As they ask that a single hole is formed in this time, it must be rotated half a circle, that is, θ =π rad, for which we use the angular scientific relations, where the shell has constant angular velocity
w = θ / t
w = π / 6,666 10⁻⁴
w = 4.712 10⁻³ rad / s
What is the east component of a vector 15 m 15.0 o N of E?
Answer:
14.49 N
Explanation:
East component (x component)
=15 m * cos 15°
=14.49N
How might you demonstrate respect for your instructors or a fellow students
Answer:
Being attentive is the best way to demonstrate respect.
Explanation:
A particle (charge = 40 μC) moves directly toward a second particle (charge = 80 μC) which is held in a fixed position. At an instant when the distance between the two particles is 2.0 m, the kinetic energy of the moving particle is 16 J. Determine the distance separating the two particles when the moving particle is momentarily stopped.
Answer:
The distance separating the two particles when the moving particle is momentarily stopped is 0.947 m
Explanation:
Given that,
First charge = 40 μC
Second charge = 80 μC
Distance between the two particles = 2.0 m
Kinetic energy = 16 J
We need to calculate the distance separating the two particles when the moving particle is momentarily stopped
Using conservation of energy
[tex]K.E+\dfrac{kq_{1}q_{2}}{d}=\dfrac{kq_{1}q_{2}}{x}+K.E[/tex]
Put the value into the formula
[tex]16+\dfrac{9\times10^{9}\times40\times10^{-6}\times80\times10^{-6}}{2}=\dfrac{9\times10^{9}\times40\times10^{-6}\times80\times10^{-6}}{x}+0[/tex]
[tex]16+14.4=\dfrac{28.8}{x}[/tex]
[tex]30.4x=28.8[/tex]
[tex]x=\dfrac{28.8}{30.4}[/tex]
[tex]x=0.947\ m[/tex]
Hence, The distance separating the two particles when the moving particle is momentarily stopped is 0.947 m
The distance separating the two particles when the moving particle is momentarily stopped is 0.947 m.
The given parameters;
charge of the first particle, q₁ = 40 μCcharge of the second particle, q₂ = 80 μCinitial distance between the particles, x₁ = 2 minitial kinetic energy, K.E₁ = 16 JThe kinetic energy is zero at the instant the moving particle is momentarily stopped.
The distance separating the two particles when the moving particle is momentarily stopped is calculated as follows;
[tex]K.E_1 \ + W_1 = K.E_2 + W_2\\\\K.E_1 + \frac{kq_1q_2}{x_1} = K.E_2 + \frac{kq_1q_2}{x_2} \\\\16 \ + \ \frac{(9\times 10^9)\times (40\times 10^{-6})\times (80\times 10^{-6})}{2} = 0 \ + \ \frac{(9\times 10^9)\times (40\times 10^{-6})\times (80\times 10^{-6})}{x_2} \\\\30.4= \frac{28.8}{x_2} \\\\x_2 = \frac{28.8}{30.4} \\\\x_2 = 0.947 \ m[/tex]
Thus, the distance separating the two particles when the moving particle is momentarily stopped is 0.947 m.
Learn more here:https://brainly.com/question/16252268
I wave is a disturbance in matter that transfers energy through the matter.
Answer:
ok is this a question? if so i can edit my answer
Explanation:
Does the mass of an object dictate the acceleration of
a falling object
Answer:
No.
Explanation:
Because the acceleration of falling objects is constant and is not affected by mass
Answer: no
The acceleration of an object is equivalent to the gravitational acceleration. The size, shape, and weight of an item are not a cause in the motion of the object. So all objects, regardless of its mass, size, or shape fall freely with the same acceleration.
A roundabout in a fairground requires an input power of 2.5 kW when operating at a constant angular velocity of 0.47 rad s–1 . (a) Show that the frictional torque in the system is about 5 kN m. (3) 1. (b) When the power is switched off, the roundabout decelerates uniformly because the
Answer:
Explanation:
Since the roundabout is rotating with uniform velocity ,
input power = frictional power
frictional power = 2.5 kW
frictional torque x angular velocity = 2.5 kW
frictional torque x .47 = 2.5 kW
frictional torque = 2.5 / .47 kN .m
= 5.32 kN . m
= 5 kN.m
b )
When power is switched off , it will decelerate because of frictional torque .
Sally and Misha pushed a cart toward the right with a force of 24 N each. If Jeff pushed on the cart in the opposite direction, how much force would he need to use to cause the cart to experience balanced forces? (Answer with a number)
Answer:
F = 48 [N]
Explanation:
To solve this problem we must use Newton's third law, which tells us that the sum of forces on a body must be equal to zero, that is, the body is in static equilibrium or in equilibrium.
ΣF = 0
24 + 24 - F = 0
F = 24 + 24
F = 48 [N]
Note: Jeff's force should be equal to the sum of Sally and Misha's forces, but in the opposite direction.
Scientists might make a computer model of volcanic eruptions. What is the biggest benefit of this model
Answer:
I think it would be to be able to prevent a volcanic eruption in the future and take the appropriate prevention protocols.
Explanation:
Roxy weighs 120 lbs and dead lifts 150 lbs. What is her absolute strength?
Answer:
Absolute strength = 1.25
Explanation:
Given:
Body weight of body = 120 lbs
Body weight of thing = 150 lbs
Find:
Absolute strength
Computation:
Absolute strength = Body weight of thing / Body weight of body
Absolute strength = 150 / 120
Absolute strength = 1.25
A car is traveling at a speed of 54 km/h. Breaks are applied so as to produce a uniform acceleration of -0.5 m/s2. Find how far the car will go before it is brought to rest
Explanation:
u=54 km/h
54*5/18=15 m/s
v=0m/s
t=?
acceleration=-0.5m/s^2
we know that a=v-u/t
so,
t=v-u/a
t=15-0/0.5
=15/0.5
=30
therefore, the time is 30 second
Hope this answer helps you..
whats the force of a pitching machine on a baseball
Answer:
kinetic
Explanation:
Answer:
Baseballs pitched by a machine have a horizontal velocity of 30 meters/second. The machine accelerates the baseball from 0 meters/second to 30 meters/second in 0.5 seconds. If a baseball has a mass of 0.15 kilograms, the force the machine exerts its newtons.
- True or false: A 100 kilogram moon rock has more inertia on Earth than it does on the Moon.
True
False
It’s due by tonight, please show work.
what is the most commmon injury in the United states
a boat is moving 1.3m/s N while the steam current is pushing the boat 2.2m/s What is the resultant velocity( I also need the givens,and the formula as well as the answer please and thank youuu)
Answer:
6) 2.6 m/s, 31°
7) 9.2 m/s
8) 1.2 s
Explanation:
I'll do #6, #7, and #8 as examples. You can solve #9 using the equation from #7, and #10 using the equation from #8.
6) Take north to be +y and east to be +x.
Given:
vₓ = 2.2 m/s
vᵧ = 1.3 m/s
Find: v
v² = vₓ² + vᵧ²
v² = (2.2 m/s)² + (1.3 m/s)²
v ≈ 2.6 m/s
θ = atan(vᵧ / vₓ)
θ = atan(1.3 / 2.2)
θ ≈ 31°
7) Given:
Δy = -4.3 m
v₀ = 0 m/s
a = -9.8 m/s²
Find: v
v² = v₀² + 2aΔy
v² = (0 m/s)² + 2 (-9.8 m/s²) (-4.3 m)
v ≈ 9.2 m/s
8) Given:
Δy = -6.7 m
v₀ = 0 m/s
a = -9.8 m/s²
Find: t
Δy = v₀ t + ½ at²
-6.7 m = (0 m/s) t + ½ (-9.8 m/s²) t²
t = 1.2 s
A bomber is diving towards it's target at an angle of 45 degrees below the horizontal and at a speed of 320 m/s. When the bomber is 600m above the ground, it releases its load, which then hits the target. How long will it take the bomb to reach the target?
Answer:
The time it will take the bomb to reach the target is approximately 2.402 seconds
Explanation:
The given information are;
The direction the bomber is travelling = 45° below the horizontal
The speed at which the bomber was travelling = 320 m/s
The elevation at which the bomber releases its load = 600 m
Therefore, we have;
The height at which the bomb is released, s = 600 m
The inclination of the direction of motion of the bomb = 45° below the horizontal
The magnitude of the velocity of the bomb at release = 320 m/s
The vertical component of the velocity = 320 m/s × sin(45°) = 160·√2 m/s
Therefore, the initial vertical velocity, [tex]u_v[/tex], of the bomb = 160·√2 m/s downwards
From the equation of motion, we have;
s = [tex]u_v[/tex] × t + 1/2 × g × t²
Where;
t = The time it takes the bomb to hit the target
g = The acceleration due to gravity = 9.81 m/s²
∴ 600 = 160·√2 × t + 9.81 × t²
9.81 × t² + 160·√2 × t - 600 = 0
By the quadratic formula, we have;
[tex]x = \dfrac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}[/tex]
[tex]t = \dfrac{-160 \times \sqrt{2} \pm \sqrt{(160 \times \sqrt{2} )^{2}-4\times 9.81\times (-600)}}{2\times 9.81}[/tex]
t ≈ -25.467 seconds or t ≈ 2.402 seconds
Given that t is a natural number, we have the correct option is t ≈ 2.402 seconds
Therefore, the time it will take the bomb to reach the target ≈ 2.402 seconds.
1. When human bones are brittle due to eating too much dairy food, what is this called?
2. When a person is working out and they get dry mouth, dizziness, and lack of sweat, what is happening to them.
3. when the arteries of the human heart are clogged by years of plaque build up and the heart can not pump blood through the body correctly, what is this called?
4. Exercises like swimming and bike riding can be put in what exercise category?
5. Eating too much processed food can lead to you getting what?
6. Eating too much meet can lead to you getting what?
Answer:
1. Osteoporosis
2. Dehydration
3. Atherosclerosis
4. Aerobic exercise
5. Heart disease, obesity, diabetes and high blood pressure
6. Coronary heart disease, colorectal cancer, diabetes
Explanation:
1. Osteoporosis is the condition of the bones when they become easily fractured and less dense, such that injuries to the bones are likely to cause disability or pain
2. The bod becomes dehydrated in the event that there is insufficient water for proper functioning of the organs due to the loss of more water than the water that is taken in or absorbed.
3. Atherosclerosis is the building of plaque on the inside and outside of the walls of the arteries by cholesterol, fat, and other compounds in the blood often being taken as a problem or undesirable condition of the heart.
4. Processed foods are those that contain chemicals (that give them a good taste) in proportions that can cause illnesses
5. Taking large quantities of (red) meat such as burgers, or barbecued red meat, can lead to type 2 diabetes, cancers and stroke
Zoom in to get a clear picture
Answer:
D. Place mirrors at both A and E
Explanation:
Water has a very high heat capacity which is why it's hard to quickly heat up and cool down the oceans true or false
The answer would be true
some things are difficult for science to observe so ______ are built in order to study these phenomena
Answer:Describe how scientists study the natural world. Explain ... In this way, scientists gradually build an increasingly accurate and detailed ... Science rests on evidence and logic, so it deals only with things that can be observed. ... This is a drawback, because it may make the observations difficult to interpret.
Explanation:
Answer:
Models
Explanation:
What is meant by the term "fixed point"?
Explanation:
A fixed point is a point x such that. f(x) = x . Graphically, these are exactly those points where the graph of f, whose equation.
Answer:
a fix joint is a point x such that.f (x) = x.
Explanation:
Graphically, these are execty those point where the graph of f, whose equation.
Mountains can ONLY be formed by continental crust colliding?
True
False
Answer
:Fold mountains are often associated with continental crust. They are created at convergent plate boundaries, sometimes called continental collision zones or compression zones. Convergent plate boundaries are sites of collisions, where tectonic plates crash into each other.
1. A Mars rover is packed inside an airbag lander that will bounce on the surface of the planet. The rover will bounce many times before coming to a stop. It is projected that on the first bounce, the lander will project upward at 75° above the horizon with a speed of 9.92m/s. A. How much time will elapse between this first bounce and the second bounce
Answer:
The value is [tex]t = 5.15 \ seconds [/tex]
Explanation:
From the question we are told that
The angle is [tex]\theta = 75^o[/tex]
The speed is [tex]v = 9.92 \ m/s[/tex]
The time taken is mathematically represented as
[tex]t = \frac{ 2 * v * sin (\theta )}{ g}[/tex]
=> [tex]t = \frac{ 2 *9.92 * sin (75 )}{ 9.8}[/tex]
=> [tex]t = 5.15 \ seconds [/tex]
An arrow is fired directly horizontal off a cliff that is 10.0 meters tall with a velocity of 65.5m/s. How long is the arrow in the air? *
Answer: The answer is..
Explanation:
10m. And I know what you are doing so there is also an answer for B which is,93.66. For more, search it up on google.
What is the acceleration of a 50kg object pushed with a force of 500 newtons?
Answer:
10
Explanation:
Acceleration = Force / Mass
500 N / 50 Kg = 10
a sydiver jumps out of a plane. She fall dowward at a very fast speed. Which force is acting upon it?
Answer:
There will be two forces acting on her: Gravitational force and Air resisitence
An object is dropped from rest.
What is its instantaneous speed when it has
been in motion for 3 s? The acceleration of
gravity is 9.8 m/s
2
.
Answer in units of m/s.
Answer:
29.4m/s
Explanation:
Given parameters:
Duration of motion = 3s
Acceleration due to gravity = 9.8m/s²
Unknown:
Instantaneous speed = ?
Solution:
Instantaneous speed is the speed at an instant or a particular time.
Since initial speed = 0 because it was at rest, the best motion equation to solve this problem is given as;
V = U + gt
Where V is the instantaneous speed
U is the initial speed
g is the acceleration due to gravity
t is the time taken
Insert the parameters and solve;
V = 0 + 9.8 x 3 = 29.4m/s
What is the average speed (in miles per hour) of the car that traveled a total of 200 miles in 5.5 hours
Answer:
Average speed of the car is 36.36 miles per hour
Explanation:
It is given that,
Total distance traveled by the car, d = 200 miles
Total time taken, t = 5.5 hours
In this case, we have to find the average speed of the car. Average speed of the car is defined as the total distance divided by total time taken. Mathematically, it can be written as :
s = 36.36 miles per hour
Hence, the average speed of the car is 36.36 miles per hour. \
when did the universe become visible
What is the height where a 110.8 kg woman would have a gravitational potential energy of 8741 J?
Answer:
8.042m
Explanation:
Ep = mgh
given that ,
m = 110.8kg
h =?
g = 9.81 m/s^2
Ep= 8741J
8741= 110.8 × 9.81 × h
h= 8741 ÷ ( 110.8 × 9.81 )
h = 8.042m