danielle02
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 Danielle
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Questions Asked

danielle02:
Group Title
Mary is twice as old as Ann when Mary was as old as Ann is now. When Ann is as old as Mary, the sum of their ages is 180. Find the age of ea…
 updated one month ago
 5 replies
 1 Medal
Mathematics

danielle02:
Group Title
12 laborers could finish a roadwork in 17 days. After 11 days, 5 laborers quit and are not replaced until 4 days.
(a) How many more labore…
 updated one month ago
 24 replies
 1 Medal
Mathematics

danielle02:
Group Title
Can you explain the Reciprocals of Quotients Theorem?
 updated 4 months ago
 11 replies
 3 Medals
Mathematics

danielle02:
Group Title
Solve for F1 and F2.
 updated 4 months ago
 10 replies
 No Medals Yet
Mathematics

danielle02:
Group Title
Find T1, T2, T3.
 updated 4 months ago
 14 replies
 1 Medal
Mathematics

danielle02:
Group Title
Solve for T2 and W.
 updated 4 months ago
 44 replies
 3 Medals
Mathematics

danielle02:
Group Title
A skater rotates at a speed of 10rad/s when her right hand & left leg are horizontally parallel to each other. Solve for the moment of iner…
 updated 4 months ago
 25 replies
 3 Medals
Mathematics

danielle02:
Group Title
A 1500 kg cow and 400 kg elephant are attracted w/ a force of 2.1x10^4 N. What is the distance between them?
 updated 4 months ago
 6 replies
 1 Medal
Mathematics

danielle02:
Group Title
U={0,1,2,3,4,5,6,7,8,9}
B={2,3,4,5}
D={6,7,8,9}
…
 updated 4 months ago
 11 replies
 No Medals Yet
Mathematics

danielle02:
Group Title
A rock is thrown with an initial vertical velocity component of 30 m/s and an initial horizontal velocity component of 40 m/s.
 updated 4 months ago
 3 replies
 No Medals Yet
Mathematics

danielle02:
Group Title
An archer shoots an arrow with an initial velocity of 21 m/s straight up from his bow. He quickly reloads and shoots another arrow in the sa…
 updated 4 months ago
 48 replies
 1 Medal
Mathematics

danielle02:
Group Title
Ideas for physical science investigatory project? Something that could be useful to society and achievable by a high school student.
 updated 4 months ago
 6 replies
 3 Medals
Mathematics

danielle02:
Group Title
. In a children’s game the instructions are to start from the school flag pole and go 30 paces north, 25 paces at 30o south of west, and 10 …
 updated 4 months ago
 2 replies
 2 Medals
Mathematics

danielle02:
Group Title
A pump lifts water from a lake to a large tank 20m above the lake. How much work against gravity does the pump do as it transfers 5.0m^3 of…
 updated 4 months ago
 4 replies
 1 Medal
Mathematics

danielle02:
Group Title
A 200kg cart is pushed slowly up an incline. How much work does the pushing force do in moving the cart up to a platform 1.5m above the star…
 updated 4 months ago
 1 reply
 1 Medal
Mathematics

danielle02:
Group Title
The driver of a car travelling at 90 mi/h observes a hazard on the road and applies the brakes, giving a constant deceleration of 7.5 ft/s2.…
 updated 5 months ago
 5 replies
 1 Medal
Mathematics

danielle02:
Group Title
A ball is thrown upward with an initial velocity of 30 m/s. How high will it rise? What will be the velocity of the ball when it returns to …
 updated 5 months ago
 12 replies
 1 Medal
Mathematics

danielle02:
Group Title
A rocket is launched from the surface of the Earth with an upward acceleration of 4 g. after 10 s, what is the speed of the rocket and to wh…
 updated 5 months ago
 6 replies
 1 Medal
Mathematics

danielle02:
Group Title
A bead is confined to slide along a taut string. It moves 80 cm to the right from its starting point, then reverses its motion and moves to …
 updated 5 months ago
 1 reply
 No Medals Yet
Mathematics

danielle02:
Group Title
An airplane is flying due north in still air at a velocity of 240 km/h. Suddenly the aircraft encounters a cross wind from the west whose ve…
 updated 5 months ago
 3 replies
 2 Medals
Mathematics

danielle02:
Group Title
At a certain instant an object has the following velocity components: v¬¬x = 300 m/s, vy ¬¬= 400 m/s. What is the speed of the object at tha…
 updated 5 months ago
 1 reply
 No Medals Yet
Mathematics

danielle02:
Group Title
In still water a certain boat can travel at a speed of 10km/h. The helmsman wishes to proceed straight across a river in which the current f…
 updated 5 months ago
 4 replies
 1 Medal
Mathematics

danielle02:
Group Title
A person holds a 10 kg board that is 2 m long in a horizontal position by supporting it with one hand underneath it 40 cm from one end while…
 updated 7 months ago
 23 replies
 2 Medals
Mathematics

danielle02:
Group Title
A uniform beam that weighs 10 lb is supported by two vertical wires A and B. A box that weighs 35 lb is placed on the beam. Find the tension…
 updated 7 months ago
 26 replies
 2 Medals
Mathematics

danielle02:
Group Title
A uniform beam that weighs 10 lb is supported by two vertical wires A and B. A box that weighs 35 lb is placed on the beam. Find the tension…
 updated 7 months ago
 4 replies
 No Medals Yet
Mathematics

danielle02:
Group Title
A hoop rolls down an inclined plane. What fraction of its total KE is associated with its rotation? I=mr^2
 updated 8 months ago
 3 replies
 No Medals Yet
Mathematics

danielle02:
Group Title
How to solve this log x  log 12 = 3
 updated 9 months ago
 2 replies
 1 Medal
Mathematics

danielle02:
Group Title
A string 0.8 m is used to whirl a 2 kg stone in a vertical circle. what must be the speed of the stone at the top of the circle if the strin…
 updated 9 months ago
 No Medals Yet
Mathematics

danielle02:
Group Title
A person pulls a 150 lb crate at constant speed 80 ft across a level floor using a rope that is 30 degrees above the horizontal. If the coef…
 updated 11 months ago
 7 replies
 1 Medal
Mathematics

danielle02:
Group Title
A 120 lb woman jumps off a wall 4.0 ft high and lands with her knees stiff. If her body is compressed by 1.0 inch on impact, what is the ave…
 updated 11 months ago
 No Medals Yet
Mathematics
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