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Stefan
Questions (86)
A horizontal pipe has a constriction. For water flowing from a wide pipe to the constricted pipe, the flow rate (decreases)
State
1 answer
147 views
Mars revolves around the sun in 687 Earth days, which represents a Martian year. How far is Mars from the sun? Express your
1 answer
108 views
Mars revolves around the sun in 687 Earth days, which represents a Martian year. How far is Mars from the sun? Express your
1 answer
184 views
A skater is rotating with his arms outstretched. When a skater draws his arms toward his body, his angular velocity (decreases,
2 answers
165 views
My apologies for the wrong formatting, here's the corrected one.
Find the equation of the tangent and normal line of the
1 answer
105 views
Find the equation of the tangent and normal line of the equation:
f(x) = √x^2 - 1, at x = 1
3 answers
172 views
Find the equation of the tangent and normal line of the equation:
f(x) = √x^2 - 1, at x = 1 Show your complete solution
2 answers
128 views
Find the equation of the tangent and normal line of the equation: Show your solution
f(x) = √x^2 - 1, at x = 1
2 answers
100 views
Find the equation of...
a) the tangent line b) the normal line of the equation: f(x) = √x^2 - 1, @ x=1 Show your solution
2 answers
116 views
Find the equation of...
a) the tangent line b) the normal line of the equation: f(x) = √x^2 - 1, @ x=1 Show your complete
1 answer
121 views
Find the equation of...
a) the tangent line b) the normal line of the equation: f(x) = √x^2 - 1, @ x=1 Show the correct
2 answers
116 views
Find the measure of the arc or angle indicated. Provide a perfect solution.
Given: Arc MK = 116, Angle K = 47 Need: Arc KL
2 answers
113 views
Find the measure of the arc or angle indicated. Provide a perfect solution.
Given: Arc MK = 116, Angle K = 47 Need: Arc KL
1 answer
182 views
Find the measure of the arc or angle indicated. Provide a perfect solution.
Given: Arc PL = 62 Need: Angle NMP Choices: A) 86 B)
1 answer
104 views
Find the measure of the arc or angle indicated. Provide a perfect solution.
Given: Arc JL = 72, Arc LK = 88 Need: Angle L
1 answer
128 views
Find the measure of the arc or angle indicated. Provide a perfect solution.
Given: Arc JK = 140, Arc LJ = 60 Need: Angle J
1 answer
123 views
find the measure of the arc or angle indicated
Pls solve. ADD SOLUTION Given: Arc XY = 80 a) 29 b) 43 c) 50 d) 31
1 answer
138 views
find the measure of the arc or angle indicated
Pls solve. Given: Arc XY = 80 a) 29 b) 43 c) 50 d) 31
1 answer
124 views
Hinimok si Rizal ni Gobernador Heneral Emilio Terrero na lisanin ang bansa upang makaiwas siya at ang kaniyang pamilya sa
0 answers
86 views
Kumpletuhin ang buong buod.
========================================= PLUMA: Ang Mabisang Sandata ni Jose P. Rizal 1. Marami ang
0 answers
121 views
The energy content of food is usually given in Calories. One Calorie is equal to 4186 J. Suppose a person uses 2000 Calories in
1 answer
263 views
The energy content of food is usually given in Calories. One Calorie is equal to 4186 J. Suppose a person uses 2000 Calories in
1 answer
151 views
A 375 g ball is thrown vertically upward with a speed of 3.0 m/s. How high did it go? How fast is it moving when it is 0.25 m
1 answer
140 views
A 375 g ball is thrown vertically upward with a speed of 3.0 m/s.
a) How high did it go? b) How fast is it moving when it is 0.25
1 answer
195 views
A 375 g ball is thrown vertically upward with a speed of 3.0 m/s.
How fast is it moving when it is 0.25 m high?
1 answer
121 views
A 375 g ball is thrown vertically upward with a speed of 3.0 m/s.
How high did it go?
1 answer
138 views
A 375 g ball is thrown vertically upward with a speed of 3.0 m/s. How high did it go? How fast is it moving when it is 0.25 m
1 answer
131 views
An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0
1 answer
186 views
An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0
1 answer
215 views
An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0
1 answer
155 views
An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0
1 answer
197 views
An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0
1 answer
281 views
An object with a mass of 0.75 kg is projected over a horizontal surface with a speed of 2.5 m/s. It then comes to rest after 3.0
1 answer
225 views
The unstretched length of a spring is 35.0 cm. When a load of 2.0 kg is attached to the lower end of the spring, the spring
1 answer
192 views
A 3.2 kg crates slides along a 6.0 m horizontal surface with speed of 5.0m/s. It then moves down along an incline with a lenth
1 answer
197 views
Write A if the statement is true, but if false, write B and then change the word(s) in the parentheses to make it true.
The
1 answer
124 views
The amount of work done on a body equals the change in ___________ of the body.
1 answer
96 views
When force and displacement are not parallel to each other, only the component of force ________ to displacement does the work.
1 answer
117 views
If the force and displacement are perpendicular to each other, the work done is equal to _________.
1 answer
98 views
True or False
The amount of work done on a body equals the change in (kinetic energy) of the body.
1 answer
106 views
True or False?
When a person is going up, the force of gravity does (positive) work on him.
1 answer
104 views
true or false
The reference point for zero gravitational potential energy is the ground
1 answer
92 views
A 76 kg man starts from rest at the top of a 12.0-m long water slide that is inclined 65° with the horizontal. In sliding down,
1 answer
177 views
A 76 kg man starts from rest at the top of a 12.0-m long water slide that is inclined 65° with the horizontal. In sliding down,
1 answer
252 views
A 76 kg man starts from rest at the top of a 12.0-m long water slide that is inclined 65° with the horizontal. In sliding down,
1 answer
217 views
A 76 kg man starts from rest at the top of a 12.0-m long water slide that is inclined 65° with the horizontal. In sliding down,
1 answer
153 views
An object with a mass of 5.13 kg is placed on top of a spring and compresses the spring by 0.25 m. (a) What is the force
1 answer
192 views
In Sample Problems 4.2 item 2, find the speed of the object at,
A) x = 2.0 m B) x = 3.0 m C) x = 4.0 m Assume that the mass of
1 answer
156 views
A man uses a 2.25-m long wooden board inclined at 35° with the horizontal to raise a 150 kg package. He then pushes forward
1 answer
107 views
An archer pulls a bowstring back by a distance of 0.56 m. The bowstring has a force constant of 340 N/m.
(a) What force is
2 answers
268 views
A force F=3.0 N+(0.5 N/m)x is used to push a crate from x=0 to x=5.0 m. How much work is done by the force?
1 answer
163 views
Suppose that a force F=250 N applied at 20° below the horizontal is just enough to start the motion of the 55 kg crate in
0 answers
158 views
A horizontal force of 28.5 N will just start the motion of a 65 N block. A force of 23 N is needed to keep it moving at a
0 answers
153 views
A 1.50 kg object is supported by two inextensible cords that are 6.0 cm and 8.0 cm long. These cords are attached to two nails A
0 answers
124 views
A metal ball weighing 490 N hangs from a uniform heavy-duty chain weighing 245 N. (a) Find the force exerted by the chain on the
0 answers
164 views
Find the center, vertices, foci, lengths of transverse and conjugate axis and the asymptotes of the hyperbola with equation:
9x²
1 answer
175 views
Write the equation of the hyperbola with vertex (±3, 0) and focus (-5, 0).
1 answer
156 views
Imagine that you are holding a book of 5 N (Newtons) at rest on the palm of your hand. Complete the ff statements:
a) A downward
1 answer
130 views
An object of weight 30 N (Newtons) rests on a table.
a) What are the forces acting on the object? b) What are the reactions to
0 answers
129 views
Three forces:
F1 = 4.5 N (Newtons) directed East F2 = 18.0 N (Newtons) directed North F3 = 18.0 N (Newtons) directed West are
1 answer
141 views
If a player kicks a stationary football with a horizontal force of 25 N (Newtons), what will be the football's acceleration? How
1 answer
222 views
Identify the vertex, focus, equation of axis of symmetry, equation of directrix, direction of opening, vertex, and length of the
3 answers
132 views
Write the equation of the parabola in standard and general form whose vertex is at the origin and directrix of equation y = 3.
1 answer
178 views
10.) The sum of the 2nd and 3rd terms of a geometric series is 15. The sum of the 3rd and 4th terms is 60. Determine:
1) The
2 answers
154 views
9.) If a-1, a+3, and a-12 are consecutive terms in a geometric sequence, find:
a) the value of a ---------------------- b) the
1 answer
102 views
A uniformly accelerated body takes 10 s to cover 500 m. Assuming that the body starts from rest, find (a) its acceleration and
0 answers
106 views
A ball is thrown vertically upward with a speed of 12.0 m/s inside a bus moving at 9.0 m/s. What is the velocity of the ball as
0 answers
147 views
A ball thrown vertically upwards returns to the hand in 4.8s. (a.) How high did the ball go? (b.) What was the ball's initial
0 answers
170 views
Angelo is driving at 15.0 m/s when he saw a stalled car 75 m ahead. At what rate must he slow down his car so that it will stop
1 answer
394 views
Log5 (2x+1)=1
2 answers
244 views
why is Israel the only country in the region that qualifies as a developed nation?
1 answer
370 views
What are the main factors that have affected the economic development in the Middle East? Explain the economic stagnation in the
1 answer
718 views
I've been looking for the answers to questions on my study guide for a test I will have for a couple hours and I got a lot of
3 answers
690 views
QR is parallel to ST and PQ:QR = 2:1. Given the area of triangle PST is 18cm2, the area of triangle PQR in sq cm is?
2 answers
594 views
Question: At STP propane (C3H8) burns in oxygen to form 2.15L of carbon dioxide and water.
The question is in 4 parts. I just
1 answer
1,081 views
So I have the balanced equation:
c3H8 +502 = 3C02 +4H20 Question: At STP propane (C3H8) burns in oxygen to form 2.15L of carbon
1 answer
1,329 views
a sample of an unknown metal has a mass of 21.6g and a volume of 8.00cm^3 . calculate the density of the unknown metal
6 answers
2,938 views
Microwaves of wavelength 4.50 cm enter a long, narrow window in a building that is otherwise essentially opaque to the incoming
1 answer
667 views
A 2.40 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 15.1 m/s. The
2 answers
2,945 views
An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the
2 answers
1,712 views
An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the
1 answer
763 views
A charge of -3.10 nC and a charge of -6.65 nC are separated by a distance of 80.0 cm. Find the position at which a third charge
1 answer
1,173 views
A charge of -3.10 nC and a charge of -6.65 nC are separated by a distance of 80.0 cm. Find the position at which a third charge
0 answers
594 views
A nuclear power plant has an electrical power output of 1200 MW and operates with an efficiency of 31%. If excess energy is
7 answers
1,475 views
In one cycle a heat engine absorbs 530 J from a high-temperature reservoir and expels 310 J to a low-temperature reservoir. If
1 answer
1,047 views
Which is the MOST important literary element in biographies?
A.Plots B.Characters C.Settings D.Point of view I believe is
2 answers
872 views