I think CD because it was positive but also had the fastest velocity in 1 second
Answer:
Magnetic field, 
Explanation:
It is given that,
Velocity of proton, 
Magnetic force, 
Charge of proton, 
We need to find the strength of the magnetic field if there is a 45° angle between it and the proton's velocity. The formula for magnetic force is given by :
B = 0.0000416 T
Hence, this is the required solution.
Answer:
5/6 MR²
Explanation:
In the composite object, the distance from the disk's axis to the rod's axis is R/2. Using parallel axis theorem, the rod's new moment of inertia is:
I = 1/12 MR² + M (R/2)²
I = 1/12 MR² + 1/4 MR²
I = 1/3 MR²
The total moment of inertia is therefore:
I = 1/2 MR² + 1/3 MR²
I = 5/6 MR²
The wavelength of violet light is given as 4.2x10^-7 m and the speed of light is 3x10^8 m/sec
The equation relating between the frequency and the wavelength is as follows:
speed of light = wavelength x frequency
Substitute with the givens in the above equation to get the frequency of violet light as follows:
frequency = (3 x 10^8) / (4.2 x 10^-7) = 7.14285 x 10^14 Hz
The threshold frequency of cesium is <span>9.39x10^14 Hz.
Since the frequency of violet light is less than the threshold frequency of cesium, therefore, the exposure to violet light won't </span><span>cause electrons to be emitted from cesium.</span>
Answer:
(a)
(b)
(c)
(d)
Explanation:
The linear momentum is defined as:
(1)
Where m is the mass and v is the velocity
<em>a.) </em><em>A proton with mass 
moving with a velocity of 
. </em>
Replacing those values in equation (1) it is gotten:
So, it has a linear momentum of 
<em>b.)</em><em> A 1.6 g bullet moving with a speed of 374m/s to the right.</em>
Notice that in this case it is necessary to express the mass of the bullet in terms of kilograms:
⇒ 
<em>c.) </em><em>A 8 kg sprinter running with a velocity of 11.8 m/s. </em>
<em>d.) </em><em>Earth (
) moving with an orbital speed equal to 29700 m/s.</em>
