Snowshoes enable a person to walk on deep snow because the snowshoesa. decrease the person’s weight on the snow.
b. increase the area over which the person’s weight is distributed.
c. increase the pressure on the snow.
d. increase the buoyancy of the person.
Answers
Answer:
Option B is correct.
Explanation:
Snowshoes has large area of crossection.
As a person wears the snowshoes, the weight of the person distributed over a large area and thus the pressure exerted by the surface due to the weight of the person is less.
The relation among pressure, force and area of crossection is given below.
As area of crossection is large, pressure is small and thus the person walk on deep snow.
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Answers
convergent boundary is the correct answer
(1) 2 × 10^–2 m (3) 2 × 10^0 m
(2) 2 × 10^–1 m (4) 2 × 10^1 m
Answers
Answers
Answer:
The stopping distance for the car when the driver slams on her brakes is 7.38 m.
Explanation:
The distance traveled for the car after stopping can be found using the following equation:
Where:
vf is the final speed = 0 (it stops)
v₀ is the initial speed = 11 m/s
a is the acceleration = -8.2 m/s²
d is the distance =?
When the driver slams on her brakes the distance traveled is:
Therefore, the stopping distance for the car when the driver slams on her brakes is 7.38 m.
I hope it helps you!
Answers
1. Domain, kingdom, phylum, class, order, family, genus, species, and subspecies.
2. If a variety of the species with a certain gene is vulnerable to a specific disease, predator, or environmental development, other members of the species with variants of the gene may be better equipped to handle the problem, and the species won't die out, just a portion of the disadvantaged.
Answers
Answer:
B= 5626.77 m
C= 6220. 5 m
Explanation:
Because the sum of the vectors must be equal to zero, then the result force in x and the result force in y must be zero.
We propose 2 equations x-y to solve the problem:
Rx :resulting from forces at x
Ry: resulting from forces at y
Rx= Ax+Bx+Cx=0
Ry= Ay+By+Cy=0
Ax =1550 *cos25.6°= 1397.84
Ay =1550 *sin25.6° = 669.73
Bx= B*sin41° = 0.656B
By= -B*cos41° = -0.7547 B
Cx= -C*cos35.1°= -0.8181 C
Cy= C* sin35.1° = 0.575 C
Rx= 1397.84+0.656B-0.8181 C=0
Ry= 669.73-0.7547 B+ 0.575 C=0
System of 2 equations with 2 incognites:
+0.656B-0.8181 C= - 1397.84
-0.7547 B+ 0.575 C= -669.73
Resolving the system:
B= 5626.77 m
C= 6220. 5 m
Final answer:
Since the vectors A, B, and C add to zero, their x and y components should add up to zero as well. This information helps create a system of linear equations to solve for the magnitudes of vectors B and C.
Explanation:
The subject matter of this vector question involves physics, specifically vector addition and vector resolution. The key point you must understand here is that these vectors add up to a total of zero. This gives us an equation to solve for the magnitudes of the other vectors, B and C.
First, break each vector into its x (east-west) and y (north-south) components and set up the system of equations. For example, Ax = 1550 cos(25.6°), Ay = 1550 sin(25.6°). Notice that the direction for vector B is given as east of south, which means B's x component is negative and its y component is positive.
When these are added together they should equal zero (since A + B + C = 0), so you will have two equations to solve for the magnitudes of B and C. This is a system of linear equations you'll need to solve, either manually or with calculator.
Learn more about Vector Addition here:
#SPJ3
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Answer:
Radio waves are a type of electromagnetic radiation with frequencies ranging from 300 GHz to as low as 3 Hz, and wavelengths ranging from 1 millimeter (0.039 inches) to 100 kilometers (62 miles). Similar to all other electromagnetic waves, they travel at the speed of light.