\(\displaystyle{\sin{{\left({34}\right)}}}={o}{p}\frac{{p}}{{5}},\)

\(\displaystyle{o}{p}{p}={5}{\sin{{\left({34}\right)}}}={2.796}{c}{m}.\)

\(\displaystyle{o}{p}{p}={5}{\sin{{\left({34}\right)}}}={2.796}{c}{m}.\)

Question

asked 2021-03-12

Aidan knows that the observation deck on the Vancouver Lookout is 130 m above the ground. He measures the angle between the ground and his line of sight to the observation deck as \(\displaystyle{77}^{\circ}\). How far is Aidan from the base of the Lookout to the nearest metre?

asked 2021-04-15

A person stands in a stationary canoe and throws a 5.22 kgstone with a velocity of 8.20 m/s at an angle of 34.0 degrees abovethe horizontal. The person and the canoe have a combined massof 105 kg. Ignoring air resistance and effects of the water,find the horizontal recoil velocity (magnitude and direction) of the canoe.

asked 2021-01-25

In \(\triangle PQR\), identify the hypotenuse, adjacent leg, and opposite leg for \(\angle R\).

asked 2021-05-16

Look Out! A snowball rolls off a barn roof that slopes downward at an angle of 40 degrees . The edge of the roof is 14.0 m above the ground, and the snowball has a speed of 7.00 m/s as it rolls off the roof. Ignore air resistance.

A man 1.9 m tall is standing 4.0 m from the edge of the barn. Will he be hit by the snowball?

A man 1.9 m tall is standing 4.0 m from the edge of the barn. Will he be hit by the snowball?

asked 2020-10-18

Use function notation to describe the way the second variable (DV) depends upon the first variable (IV). Determine the domain and range for each, determine if there is a positive, negative, or no relationship, and explain your answers.

A)IV: an acute angle V in a right triangle: DV: the area B of the triangle if the hypotenuse is a fixed length G.

B)IV: one leg P of a right triangle: DV: the hypotenuse G of the right triangle if the other leg is 2

C)IV: the hypotenuse G of a right triangle: DV: the other leg P of the right triangle is one leg is 5.

A)IV: an acute angle V in a right triangle: DV: the area B of the triangle if the hypotenuse is a fixed length G.

B)IV: one leg P of a right triangle: DV: the hypotenuse G of the right triangle if the other leg is 2

C)IV: the hypotenuse G of a right triangle: DV: the other leg P of the right triangle is one leg is 5.

asked 2020-11-05

Expanding isosceles triangle The legs of an isosceles right tri-
angle increase in length at a rate of 2 m/s.

a. At what rate is the area of the triangle changing when the legs are 2 m long?

b. At what rate is the area of the triangle changing when the hypot- enuse is 1 m long?

c. At what rate is the length of the hypotenuse changing?

a. At what rate is the area of the triangle changing when the legs are 2 m long?

b. At what rate is the area of the triangle changing when the hypot- enuse is 1 m long?

c. At what rate is the length of the hypotenuse changing?

asked 2020-12-13

a. At what rate is the area of the triangle changing when the legs are 2 m long?

b. At what rate is the area of the triangle changing when the hypot- enuse is 1 m long?

c. At what rate is the length of the hypotenuse changing?

asked 2020-12-15

a. At what rate is the area of the triangle changing when the legs are 2 m long?

b. At what rate is the area of the triangle changing when the hypot- enuse is 1 m long?

c. At what rate is the length of the hypotenuse changing?

asked 2021-05-18

1. S1 and S2, shown above, are thin parallel slits in an opaqueplate. A plane wave of wavelength λ is incident from the leftmoving in a direction perpendicular to the plate. On a screenfar from the slits there are maximums and minimums in intensity atvarious angles measured from the center line. As the angle isincreased from zero, the first minimum occurs at 3 degrees. Thenext minimum occurs at an angle of-

A. 4.5 degrees

B. 6 degrees

C. 7.5 degrees

D. 9 degrees

E. 12 degrees

asked 2021-02-21

A 15.0 kg block is dragged over a rough, horizontal surface by a70.0 N force acting at 20.0 degree angle above the horizontal. The block is displaced 5.0 m, and the coefficient of kinetic friction is 0.3. Find the work done on the block by ; a) the 70.0 N force,b) the normal force, and c) the gravitational force. d) what is the increase in the internal energy of the block-surface system due to friction? e) find the total change in the kinetic energy of the block.