Answer:
40.47m/s²
Explanation:
Acceleration is the change in velocity of a body with respect to time.
Acceleration = change in velocity/time
Given speed = 1020km/hr
Time = 1.7s
Converting 1020km/hr to m/s we have;
(1020×1000/3600)m/s
= 1,020,000/3,600
= 283.3m/s
Acceleration = 283.3/7
Acceleration = 40.47m/s²
Deceleration is therefore 40.47m/s²
Answer:
option C is correct
distance from the driver is 2 m
Explanation:
Given data
index of refraction of the water n = 1.333
driver height from ground= 1.5 m
to find out
What angle does light become maximally polarized and what distance from the driver will polarized
solution
we know that n1 for water = 1.33 and we know for air n2 = 1
so tan(θ) = n1 / n2
tan(θ) = 1.33 / 1
so (θ) = 53.06 degree
so for distance d will be calculate as
tan ( 90 - (θ) ) = height / distance
tan ( 90 - 53.06 ) = 1.5 / distance
distance = 1.5 / 0.7519
distance = 1.994 m = 2 m
so option C is correct
distance from the driver is 2 m
The first wave that forms when the wind begins to blow across the ocean surface is a <u>capillary wave</u>
The capillary waves represent the initial state of a wave that are produced by vortices in a flat sea. When the winds blow over an ocean, energy is transferred from the wind to the sea. and that produced the waves. They are also presented as ripples.
The capillary waves have a wavelength less than 1.7 cm or 0.68 inches and its speed of 0.2 to 0.3 meter per second.
<h3>What is a capillary wave?</h3>
It is a wave that is travelling along the interface boundary of a fluid and it is influenced by the effect of surface tension and the gravity.
Learn more about capillary wave at brainly.com/question/15663649
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Answer:
The tension in the cable when the craft was being lowered to the seafloor is 4700 N.
Explanation:
Given that,
When the craft was stationary, the tension in the cable was 6500 N.
When the craft was lowered or raised at a steady rate, the motion through the water added an 1800 N.
The drag force of 1800 N will act in the upward direction. As it was lowered or raised at a steady rate, so its acceleration is 0. As a result, net force is 0. So,
T + F = W
Here, T is tension
F = 1800 N
W = 6500 N
Tension becomes :

So, the tension in the cable when the craft was being lowered to the seafloor is 4700 N.
Hello! So Ik this can be wrong but I worked hard for it(: It took 50 joules to push a shopping cart 5 meters with what force was the shopping cart pushed. blinded him to enable him and his men to escape. the answer is: round. Done!