Physics Answers

How come y1+y2 is equal to −2.2122 cm+0.5645 cm. I'm confused about this part

Jamylla and Janylla are on a hike. Both hikers begin a trip by walking, the first leg A: 2.65 km, 140° from their base

camp, on their second leg B: 4.77 km, 252° and to complete their final leg C: 3.18 km, 332°. What is the magnitude and

direction of their final position from their base camp? Apply polygon method and component method and compare their

results.

The combination is connected to an external resistance of 24Ω.

Calculate;

a) the intensity of the current?

(2 mks)

b) the intensity of current if the cells are combined in parallel

(3 mks)

c) the intensity of current if the combination has two parallel series of two cells each.

Given: A = 100m, 30°NofE; B⃑ = 80m, 30°WofNandC = 40m, 55°SofW

a) Write each vector in Figure on the right in terms of

the unit vectors î and ĵ.

b) Use unit vectors to express the vector C , where

C = 3.0A − 4.0B⃑ .

c) Find the magnitude and direction of C .

Given: A = 100m, 30°NofE; B⃑ = 80m, 30°WofNandC = 40m, 55°SofW

a. Plot the given vectors in the coordinate plane.

b. Calculate the components of vectors A, B and C.

c. Write each vector in terms of the unit vectors.

d. Determine the resultant vector.

Question:- Like everything in Minecraft game, an Astronomer started thinking what will happen if our Sun would have been a square of similar luminosity.

a. If the Sun was a cube, what would be its surface temperature?

b. In what interval, does its magnitude lie as seen from the Earth?

Hint: The volume for Cube Sun remains the same as usual.

Question:- Like everything in Minecraft game, an Astronomer started thinking what will happen if our Sun would have been a square of similar luminosity.

a. If the Sun was a cube, what would be its surface temperature?

b. In what interval, does its magnitude lie as seen from the Earth?

Hint: The volume for Cube Sun remains the same as usual.

Question:- Like everything in Minecraft game, an Astronomer started thinking what will happen if our Sun would have been a square of similar luminosity.

a. If the Sun was a cube, what would be its surface temperature?

b. In what interval, does its magnitude lie as seen from the Earth?

Hint: The volume for Cube Sun remains the same as usual.

What is the force in an electric field of 200 N/C?

A ball is kicked such that it leaves the ground at an upwards angle of 35° above the horizontal with an initial velocity of 17 ms

How far away does the ball hit the ground?