2 years ago

A vector has an x-component

Physics

1 answer:

tester [92]2 years ago

6 0

Answer:

55.5 degrees above the x-axis.

Explanation:

Using SOH-CAH-TOA we can determine that

tan(the angle) = (opposite side)/(adjacent side)

Inserting our variables we get

the angle = arctan(28.4/19.5)

the angle = 55.5 degrees

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Answer:

Tollway

Explanation:

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4 years ago

A 27.0-g object moving to the right at 21.5 cm/s overtakes and collides elastically with a 11.0-g object moving in the same dire

7nadin3 [17]

Answer:

final speed of the first object: 17.73 cm/s

final speed of the second object: 24.23 cm/s

Explanation:

Data:

mass of the first object, m1 = 27.0 g

mass of the second object, m2 = 11.0 g

initial speed of the first object, v1i = 21.5 cm/s

initial speed of the second object, v2i = 15 cm/s

final speed of the first object, v1f = ? cm/s

final speed of the second object, v2f = ? cm/s

Elastic collisions formula:

v1f = (m1 - m2)/(m1 + m2) * v1i + 2*m2/(m1 + m2) * v2i

v1f = (27 - 11)/(27 + 11) * 21.5 + 2*11/(27 + 11) * 15

v1f = 17.73 cm/s

v2f = 2*m1/(m1 + m2) * v1i + (m2 - m1)/(m1 + m2)*v2i

v2f = 2*27/(27 + 11) * 21.5 + (11 - 27)/(27 + 11)*15

v2f = 24.23 cm/s

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3 years ago

What causes melting of material under divergent plate boundaries?

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Melting: as mantle material rise toward the divergent plate boundary the pressure is reduced which causes melting

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4 years ago

A ball is thrown straight up. It passes a 2.00-m-high window 7.50 m off the ground on its path up and takes 1.30 s to go past th

OLga [1]

Answer:

u = 13.67 m/s

Explanation:

given,

window height = 2 m

window is 7.5 m off the ground on its path up

total distance from the ground to pass the window = 2 + 7.5 = 9.5 m

time taken to go past the window = 1.30 s

using equation of motion

$S = u t +\dfrac{1}{2}gt^2$

$(2+7.5)= u\times 1.3 -0.5\times 9.8\times 1.3^2$

$u\times 1.3 = 9.5 + 8.281$

u = 13.67 m/s

hence, the initial velocity of the ball is equal to 13.67 m/s

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3 years ago

When you heat ice on a hot stove, the ice melts. what is happening during this process?

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Heat energy is being transferred

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3 years ago

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