Answer:
B.) to determine that electric beams in cathode ray tubes were actually made of particles
Explanation:
This is the right answer i just took the quiz on edge.
To solve this question, we need to use the component method and split our displacements into their x and y vectors. We will assign north and east as the positive directions.
The first movement of 25m west is already split. x = -25m, y = 0m.
The second movement of 45m [E60N] needs to be split using trig.
x = 45cos60 = 22.5m
y = 45sin60 = 39.0m
Then, we add the two x and two y displacements to get the total displacement in each direction.
x = -25m + 22.5m = -2.5m
y = 0m + 39.0m
We can use Pythagorean theorem to find the total displacement.
d² = x² + y²
d = √(-2.5² + 39²)
d = 39.08m
And then we can use tan to find the angle.
inversetan(y/x) = angle
inversetan(39/2.5) = 86.3
Therefore, the total displacement is 39.08m [W86.3N]
Daguerreotype is defined as the
first practical photographic process which was introduced in Paris on January
7, 1839. To make the image permanent, Daguerre used salt solution. The result
of his introduced process is a finely defined image with surface which is
delicate. The major benefit of daguerreotype is if the images are correctly
preserved, the pictures could last forever. Aside from this, since it produces superior
quality of outline, it is thus suitable for portraitures.
Voltage = (current) x (resistance)
The voltage across THIS RESISTOR is
V = (0.050 A) x (0.1 ohm)
V = 0.005 v (5 millivolts)
Answer:
correct option is B
the absolute pressure will be less than 2p
Explanation:
given data
absolute pressure = p
depth = twice
to find out
what is correct option
solution
we know here that p absolute pressure so we consider atmospheric pressure p1
so we can say at some depth h pressure will be
pressure p = p1 + ρ g h
so if depth is double
pressure will be
2p = 2p1 +2 (ρ g h )
so
2p - p1 = p1 + 2 (ρ g h )
so correct option is B
the absolute pressure will be less than 2p
