Answer:
Decay's theory explains that memory, by the mere passage of time, fades. As time passes the information is less available for later retrieval. So that the information is not lost over time it is necessary to rehearse it.
Answer:
Ferrari would stop first.
Explanation:
The momentum of a moving body is given as:
momentum, P = mass of the body x its velocity
i. For the Freight,
mass = 5000 tons = 4535924 kg
speed = 10 mph = 4.4704 m/s
P = mv
= 4535924 x 4.4704
= 20.28 x
P = 20.28 x kgm/s
ii. For the Ferrari,
mass = 3250 lb = 1474.175 kg
speed = 250 mph = 111.76 m/s
P = mv
= 1474.175 x 111.76
= 16.48 x
P = 16.48 x kgm/s
Comparing the momentum of the two objects, the Ferrari would stop fist when break is applied.
Answer:
They're going to increase the total resistance as
Explanation:
If the resistors are in parallel, the potential difference is the same for each resistor. But the total current is the sum of the currents that pass through each of the resistors. Then
where
but
for
so
where
The earth rotated approximately by 90 degrees and the gravitational attraction between the moon and the Beachview area decreased. This caused a change in tides between 6:00 a.m and noon that day.
Option C.
<h3><u>
Explanation:</u></h3>
The high tides occur in oceans that are on the side of the earth which is directly facing the moon. Since moon is closer to earth, the gravitational pull it exerts on the earth's surface is much stronger than that of the sun.
As one side of the earth turns further away from the moon, the gravitational pull on that side decreases. Hence, there is seen a difference between the size of the tides on different time of the day.
The gravitational pull by sun and moon over the oceans of earth cause tides. These are bulges of water on the coastal areas which are created as the moon and sun pull earth towards them. Tides are of two types:
The central maximum
extends to the first minimum on either side.
So the first minimum
occurs at <span>3cm / 2 = 1.5cm = 0.015m to the side from the center of the
central maximum. </span>
<span>Now using the formula,
λ = a(y/L)</span>
Where a is the width of
the slit, y = distance of first minimum from center, L = distance of screen
from slit, and λ = wavelength of the light that strikes a single slit at normal
incidence which is unknown here.<span>
a = L x λ/y
a = 1.80 m x (λ / 0.015 m)
a = 120 λ </span>
<span>Use the value of λ for
any light and you get the width of slit.</span>