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Tsion
Questions (20)
Three point charges are placed on the x-axis at x=0, x=10&x=30cm respectively .find the net force on the _2nc charge due to the
0 answers
347 views
if 3 mole of of calcium react with 3 mole of oxygen then what
substance is limiting reactant?
3 answers
2,810 views
A baseball player exert a force of 125 N on a 0.18 kg baseball for 33 sec. what is the baseball change of momentum ?
1 answer
536 views
You have a stock solution that is 350g/L . You perform a 9-fold serial dilution four times. What concentrations will you have in
0 answers
508 views
A mass attached to a spring oscillates with a period of 3.04 s. If the mass starts from rest at x = 0.0420 m and time t = 0,
0 answers
426 views
Under acidic conditions, MnO4− becomes Mn2+. Write the balanced half-reaction for this transformation. (Omit states-of-matter
4 answers
4,418 views
A uniform thin rod of length 0.55 m and mass 5.5 kg can rotate in a horizontal plane about a vertical axis through its center.
1 answer
2,261 views
What linear speed must a 0.0508-kg hula hoop have if its total kinetic energy is to be 0.164 J? Assume the hoop rolls on the
1 answer
596 views
A wheel, starting from rest, has a constant angular acceleration of 1.8 rad/s^2. In a 3.1-s interval, it turns through an angle
0 answers
494 views
A 41.0-kg body is moving in the direction of the positive x axis with a speed of 306 m/s when, owing to an internal explosion,
0 answers
759 views
Two pucks collide on an air hockey table. Puck A has a mass of 17.0 g and is initially traveling in the +x direction at 7.00
0 answers
863 views
A)A block rests on a horizontal frictionless surface. A string is attached to the block, and is pulled with a force of 60.0 N at
1 answer
2,926 views
A set of crash tests consists of running a test car moving at a speed of 11.6 m/s (25.52 m/h) into a solid wall. Strapped
1 answer
1,160 views
A)A 90 kg crate is pushed at constant speed up the frictionless 34° ramp shown in the figure. What horizontal force F is
4 answers
4,766 views
A ball is thrown horizontally from a height of 24.93 m and hits the ground with a speed that is 3.0 times its initial speed.
1 answer
544 views
A)Eddie the Eagle, British Olympic ski jumper, is attempting his most mediocre jump yet. After leaving the end of the ski ramp,
0 answers
701 views
A projectile is launched from ground level at 37.0 m/s at an angle of 30.6 ° above horizontal. Use the launch point as the
1 answer
735 views
A ball is thrown horizontally from a height of 24.93 m and hits the ground with a speed that is 3.0 times its initial speed.
1 answer
551 views
A river flows due east at 1.65 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant
1 answer
547 views
How do I find the magnitude from this data:
theta_1 = 44.9 theta_2 = 146.1 A = 4.8 cm B = 8.7 cm
6 answers
506 views
Answers (9)
student
Yes
nader sherlock
Part A keeps be marked wrong. Is my answer supposed to be 493.7 N ?
part B: If the river is 308 m wide, how far downstream has the boat moved by the time it reaches the north shore?
I keep getting the wrong answer. I got 4.42, is that wrong?
theta one goes with A and theta two goes with B. I know I'm supposed to use |A+B| =sqrt[ (A+B)x^2 + (A+B)y^2 ], but I am having troubles on which numbers I have to plug in for each value.
of vector (A + B)
.6 .16
