Answers
Answer:
a) Linear equation
Explanation:
Definition of acceleration
if a=constant and we integrate the last equation
So the relation between the time and the velocity is linear. If we plot the velocity in function of time, the plot is a line, and the acceleration is the slope of this line.
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Why is there so much more carbon dioxide in the atmosphere of Venus than in that of Earth? Why so much more carbon dioxide than on Mars?
An object moving with uniform acceleration has a velocity of 10.5 cm/s in the positive x-direction when its x-coordinate is 2.72 cm. If its x-coordinate 2.30 s later is ?5.00 cm, what is its acceleration? The object has moved to a particular coordinate in the positive x-direction with a certain velocity and constant acceleration; then it reverses its direction and moves in the negative x-direction to a particular x-coordinate in time t. We are given an initial velocity vi = 10.5 cm/s in the positive x-direction when the initial position is xi = 2.72 cm (t = 0). We are given that at t = 2.30 s, the final position is xf = ?5.00 cm. The acceleration is uniform so that we have the following equation in terms of the constant acceleration a. Xf-Xi=Vit-1/2at^2 Now we substitute the given values into this equation. (___cm)-(___cm)=(___cm/s)(__s)+1/2a(___s)
A thin flashlight beam traveling in air strikes a glass plate at an angle of 52° with the plane of the surface of the plate. If the index of refraction of the glass is 1.4, what angle will the beam make with the normal in the glass?
Answers
Answer :
(a). The wavelength of electron is 26.22 μm.
(b).The wavelength of car is
Explanation :
Given that,
Speed = 100 km/hr
Mass of car = 1 ton
(a). We need to calculate the wavelength of electron
Using formula of wavelength
Put the value into the formula
(II). We need to calculate the wavelength of car
Using formula of wavelength again
The wavelength of the electron is greater than the dimension of electron and the wavelength of car is less than the dimension of car.
Therefore, electron is quantum particle and car is classical.
Hence, (a). The wavelength of electron is 26.22 μm.
(b).The wavelength of car is .
Answers
Answer:
v = 4,244,699 m/s = (4.245 × 10⁶) m/s
Explanation:
The electric force on the proton is given by
F = qE
where q = charge on the proton = (1.602 × 10⁻¹⁹) C
E = Electric field = 720,000 N/C
F = (1.602 × 10⁻¹⁹ × 720000)
F = (1.153 × 10⁻¹³) N
But this force will accelerate the proton in this magnetic field in a form of trajectory motion.
We can obtain the acceleration using Newton's first law of motion relation
F = ma
m = mass of a proton = (1.673 × 10⁻²⁷) kg
a = (F/m)
a = (1.153 × 10⁻¹³)/(1.673 × 10⁻²⁷)
a = 68,944,411,237,298 m/s²
a = (6.894 × 10¹³) m/s²
This acceleration directs the proton from the positive plate to the negative plate, covering a distance of y = 0.006 m (the distance between the plates)
Using Equations of motion, we can obtain the time taken for the proton to move from the rest at the positive plate to the negative one.
u = initial velocity of the proton = 0 m/s
y = vertical distance covered by the proton = 0.006 m
a = acceleration of the proton in this direction = (6.894 × 10¹³) m/s²
t = time taken for the proton to complete this distance = ?
y = ut + (1/2) at²
0.006 = 0 + [(1/2)×(6.894 × 10¹³)×t²]
0.006 = (3.447 × 10¹³) t²
t² = (0.006)/(3.447 × 10¹³)
t² = 1.741 × 10⁻¹⁶
t = (1.32 × 10⁻⁸) s
Then we can then calculate the minimum speed to navigate the entire length of the plates without hitting the plates.
v = ?
x = 0.056 n
t = (1.32 × 10⁻⁸)
v = (x/t)
v = (0.056)/(1.32 × 10⁻⁸)
v = 4,244,699 m/s = (4.245 × 10⁶) m/s
Hope this Helps!!!
Answer:
v = 9.09×10⁵m/s
Explanation:
Given
d = the distance between plates = 0.6cm = 0.006
E = Electric field strength = 720000N/C
m =mass of the proton = 1.67 ×10-²⁷ kg
The
Electric potential energy of the field is converted into the the kinetic energy of the proton.
So
qV = 1/2mv²
But V = Ed
So q(Ed) = 1/2mv²
v² = 2qEd/m
v = √(2qEd/m)
v = √(2×1.6×10-¹⁹×720000×0.006/1.67×10-²⁷)
v = 9.09×10⁵m/s
Answers
Predator? like they hunt their prey
Answer:
prey
Explanation:
Answers
In order to solve this problem it is necessary to apply the concepts related to Newton's second law and the respective representation of the Forces in their vector components.
The horizontal component of this force is given as
F_x = Fcos(6.7)
While the vertical component of this force would be
F_y = Fsin(6.7)
In the vertical component, the sum of Force indicates that:
The Normal Force would therefore be equivalent to the weight and vertical component of the applied force, therefore:
In the horizontal component we have that the Force of tension in its horizontal component is equivalent to the Force of friction:
Using the previously found expression of the Normal Force and replacing it we have to,
Replacing,
Finally the acceleration would be by Newton's second law:
Therefore the greatest acceleration the man can give the airplane is
Answers
Answer:
0.25( m1m1) , 0.75( m2m2)
Explanation:
Noted the formula for kinetic energy is 1/2(Mass × Velocity).
Therefore the original value of the mass is 0.5, giving half away makes it 0.25 to another mass which is primarily 0.5. This now makes the new mass 0.25+0.5=0.75.
Thank you.
Answers
D:Some heat from the iron will move to the water causing both to change temperatures.