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Lindsay

Questions (301)

Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that,
1. 6 answers
2. 1,288 views
My last problem for the day:A) The centers of two 11.00 kg spheres are separated by 0.09 m. What is their gravitational
1. 2 answers
2. 671 views
Three very small spheres are located along a straight line in space far away from everything else. The first one (with a mass of
1. 6 answers
2. 677 views
The Wall of Death in an amusement park is comprised of a vertical cylinder that can spin around the vertical axis. Riders stand
1. 1 answer
2. 989 views
This is the info for the problem: A block of mass M1 = 160.0 kg sits on an inclined plane and is connected to a bucket with a
1. 1 answer
2. 1,240 views
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s
1. 3 answers
2. 516 views
A block of mass M1 = 160.0 kg sits on an inclined plane and is connected to a bucket with a massless string over a massless and
1. 4 answers
2. 1,150 views
A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic
1. 8 answers
2. 967 views
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s
1. 11 answers
2. 1,162 views
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s
1. 3 answers
2. 723 views
A hockey puck is sliding across a frozen pond with an initial speed of 6.5 m/s. It comes to rest after sliding a distance of 7.6
1. 3 answers
2. 3,348 views
A 850.0-kg car travelling on a level road at 27.0 m/s (60.5 mi/hr) can stop, locking its wheels, in a distance of 61.0 m (200.1
1. 3 answers
2. 899 views
A railroad flatcar is loaded with crates. The coefficient of static friction between the crates and the floor is 0.27. If the
1. 1 answer
2. 727 views
A 5.70 kg block located on a horizontal floor is pulled by a cord that exerts a force F = 10.4 N at an angle theta = 27.5°
1. 2 answers
2. 921 views
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s
1. 8 answers
2. 645 views
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s
1. 0 answers
2. 487 views
A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic
1. 2 answers
2. 891 views
A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic
1. 0 answers
2. 1,134 views
A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic
1. 0 answers
2. 587 views
A railroad flatcar is loaded with crates. The coefficient of static friction between the crates and the floor is 0.27. If the
1. 0 answers
2. 636 views
A railroad flatcar is loaded with crates. The coefficient of static friction between the crates and the floor is 0.27. If the
1. 0 answers
2. 615 views
A railroad flatcar is loaded with crates. The coefficient of static friction between the crates and the floor is 0.27. If the
1. 4 answers
2. 664 views
A research balloon of total mass 200 kg is descending vertically with a downward acceleration of 3.2 m/s^2. How much ballast
1. 2 answers
2. 1,268 views
A man stands on a scale in an elevator that is accelerating upward. The scale reads 731.6 N. When he picks up a 35.0 kg box, the
1. 5 answers
2. 1,801 views
A car that weighs 14900.0 N is initially moving at a speed of 57.0 km/hr when the brakes are applied and the car is brought to a
1. 1 answer
2. 789 views
A block of mass 7.5 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of 31.0 N at an angle
1. 2 answers
2. 756 views
A 2 kg otter starts from rest at the top of a muddy incline 85 cm long ans slides down to the bottom in 0.5 s. What net external
1. 4 answers
2. 1,712 views
A 2 kg otter starts from rest at the top of a muddy incline 85 cm long ans slides down to the bottom in 0.5 s. What net external
1. 0 answers
2. 597 views
My worksheet gives me a list of chemical symbols, and each one makes a phrase. I have to figure out which each one says. The one
1. 0 answers
2. 532 views
A regulation volleyball court is L = 18.0 m long and a regulation volleyball net is d = 2.43 m high. A volleyball player strikes
1. 0 answers
2. 693 views
A regulation volleyball court is L = 18.0 m long and a regulation volleyball net is d = 2.43 m high. A volleyball player strikes
1. 1 answer
2. 1,126 views
We're studying projectile motion in my Physics class right now, and last week we went outside and hit tennis balls with a bat.
1. 5 answers
2. 480 views
The soccer goal is 23.05 m in front of a soccer player. She kicks the ball giving it a speed of 17.97 m/s at an angle of 25.83
1. 2 answers
2. 747 views
A cannon is fired from a cliff 190 m high downward at an angle of 38o with respect to the horizontal. If the muzzle velocity is
1. 4 answers
2. 603 views
A cannon is fired from a cliff 190 m high downward at an angle of 38o with respect to the horizontal. If the muzzle velocity is
1. 4 answers
2. 654 views
A cannon is fired from a cliff 190 m high downward at an angle of 38o with respect to the horizontal. If the muzzle velocity is
1. 3 answers
2. 599 views
A regulation volleyball court is L = 18.0 m long and a regulation volleyball net is d = 2.43 m high. A volleyball player strikes
1. 1 answer
2. 732 views
A regulation volleyball court is L = 18.0 m long and a regulation volleyball net is d = 2.43 m high. A volleyball player strikes
1. 7 answers
2. 1,927 views
The launching speed of a certain projectile is 6.4 times the speed it has at its maximum height. Calculate the elevation angle
1. 4 answers
2. 749 views
The soccer goal is 23.05 m in front of a soccer player. She kicks the ball giving it a speed of 17.97 m/s at an angle of 25.83
1. 1 answer
2. 1,077 views
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height
1. 3 answers
2. 1,462 views
A stone is aimed at a cliff of height h with an initial speed of 62 m/s directed 45° above the horizontal, as shown in the
1. 1 answer
2. 690 views
A helicopter is flying in a straight line over a level field at a constant speed of 21.7 m/s and at a constant altitude of 11.5
1. 3 answers
2. 1,693 views
A ball is thrown horizontally from a height of 16.01 m and hits the ground with a speed that is 5.0 times its initial speed.
1. 8 answers
2. 895 views
A ball is thrown horizontally from a height of 16.01 m and hits the ground with a speed that is 5.0 times its initial speed.
1. 2 answers
2. 863 views
A small steel ball bearing with a mass of 24 g is on a short compressed spring. When aimed vertically and suddenly released, the
1. 4 answers
2. 1,197 views
A stone thrown horizontally from a height of 7.8 m hits the ground at a distance of 12.0 m. Calculate the speed of the ball as
1. 3 answers
2. 959 views
A snowball is launched horizontally from the top of a building at v = 15 m/s. If it lands d = 44.5 meters from the bottom, how
1. 1 answer
2. 1,443 views
Salmon, swimming up the Fraser river to their spawning grounds, leap over all sorts of obstacles. The unofficial salmon-altitude
1. 3 answers
2. 1,022 views
A rescue plane has to drop supplies to a group of castaways who are stranded on a deserted island. The plane is flying as 150
1. 2 answers
2. 928 views
At the entrance channel of a harbor, the tidal current has a velocity of 4.94 km/hr in a direction 23.2° south of east. Suppose
1. 0 answers
2. 606 views
At the entrance channel of a harbor, the tidal current has a velocity of 4.94 km/hr in a direction 23.2° south of east. Suppose
1. 1 answer
2. 889 views
At the entrance channel of a harbor, the tidal current has a velocity of 4.94 km/hr in a direction 23.2° south of east. Suppose
1. 0 answers
2. 637 views
I am given a velocity versus time graph for a runner. For it, I had to figure out the average velocity for the entire 16 s
1. 2 answers
2. 900 views
A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 12.6 m higher than A, with speed
1. 1 answer
2. 601 views
A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend
1. 2 answers
2. 1,772 views
A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend
1. 0 answers
2. 666 views
A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend
1. 3 answers
2. 667 views
A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend
1. 2 answers
2. 584 views
A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend
1. 7 answers
2. 926 views
It takes 2.5 s for a small ball released from rest from a tall building to reach the ground. The mass of the ball is 0.05 kg.
1. 1 answer
2. 867 views
At the instant a traffic light turns green, a car starts moving with a constant acceleration a of 3.05 m/s^2. At the same time a
1. 11 answers
2. 1,153 views
A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 12.6 m higher than A, with speed
1. 2 answers
2. 546 views
A stone is thrown vertically upward. On its way up it passes point A with speed v, and point B, 12.6 m higher than A, with speed
1. 2 answers
2. 714 views
What exactly is "cultural purity?" I think I understand the concept, but I'm having a hard time putting it into words.
1. 2 answers
2. 755 views
A golf ball released from a height of 1.80 m above a concrete floor, bounces back to a height of 1.06 m. If the ball is in
1. 2 answers
2. 2,159 views
A golf ball released from a height of 1.80 m above a concrete floor, bounces back to a height of 1.06 m. If the ball is in
1. 3 answers
2. 688 views
-The brakes on your automobile are capable of creating acceleration of 19 ft/s2. If you are going 76 mi/hr and suddenly see a
1. 5 answers
2. 788 views
The airplane can take off when its airspeed (speed of the air flowing over the wing) is equal to 65 knots. What is the length of
1. 12 answers
2. 1,268 views
A Cessna airplane can accelerate from rest to a ground speed of 78 knots in 29.8 s. What is the average acceleration of this
1. 3 answers
2. 488 views
Again, I'm learning about trigonometric functions. I need to find the missing information for each triangle.I have the length of
1. 1 answer
2. 493 views
I'm learning about trigonometric functions, and my worksheet instructs me to find the "missing information" for each triangle.Fo
1. 2 answers
2. 1,018 views
A model rocket is launched straight upward with an initial speed of 50 m/s. It accelerates with a constant upward acceleration
1. 2 answers
2. 1,966 views
A robot probe drops a camera off the rim of a 239 m high cliff on Mars, where the free-fall acceleration is -3.7 m/s^2.a) Find
1. 4 answers
2. 5,355 views
I have the equation 'change in distance = 1/2 x (vf+vi) x change in time (or delta t)' for uniform acceleration. However, I am
1. 3 answers
2. 968 views
A bicyclist accelerates -0.87 m/s/s during a 3.8 s interval. What is the change in velocity of the bicyclist and the bicycle?For
1. 1 answer
2. 842 views
A freight train traveling with a velocity of -4.0 m/s begins backing into a train yard. If the train's average acceleration is
1. 2 answers
2. 997 views
A bus travels 280 km south along a straight path with an average velocity of 88 km/hr to the south. The bus stops for 24 min,
1. 6 answers
2. 5,976 views
Could you explain to me how to these type of problems? I checked in my book and it is still confusing.Evalute the piecewise
1. 1 answer
2. 1,453 views
I am having trouble finding information on Government regulations dealing with teen abstinence. The sites given to me by my
1. 0 answers
2. 575 views
Is there an experiment I could do to prove that soap is made up of fat and lye?Thank you for using the Jiskha Homework Help
1. 0 answers
2. 727 views
I'v been looking all over the web, but I can't seem to come up with a good response to this: "Describe 2 ways in which maple
1. 0 answers
2. 1,140 views
These are all true or false questions, and I think some of my answers may be wrong. Could someone please check them for me?1)
1. 0 answers
2. 672 views
How is it possible for me to tell which of these solutes will produce an acidic solution when dissolved in water?LiOH CH3CO2K
1. 0 answers
2. 835 views
Can someone please tell me which of the following I have wrong?? I know that one or more is incorrect, but I'm not sure which
1. 0 answers
2. 851 views
In a titration experiment 34.12 mL of 0.902 M KOH is reacted with H2SO4. The endpoint is reached when 50.46 mL of the acid is
1. 0 answers
2. 717 views
I have more answers that I would like checked. Also, there is one that I'm really confused about. I appreciate any help. :)Rewri
1. 0 answers
2. 846 views
It would be great if, again, someone would check these answers for accuracy. I'd like to know if I'm doing them right.1) What
1. 1 answer
2. 635 views
Can someone please check these answers for me?? I'm pretty sure most of them are right, except for maybe the second T/F
1. 0 answers
2. 547 views
What is the pH of 0.000082 M NaOH?I know how to find the pH of an aqueous solution, but I'm not sure of the formula for this
1. 0 answers
2. 317 views
Icebergs in the North Atlantic present hazards to shipping, causing the length of shipping routes to increase by about 30
1. 1 answer
2. 629 views
A 63 gram block of an unknown metal at 88 degrees C was dropped into an insulated flask containing approx. 30 g of ice and 30 g
1. 0 answers
2. 853 views
Ok ok I swear after this I'm done asking questions. It's just that I'm trying so hard to understand all of this, but sometimes
1. 0 answers
2. 808 views
This is sort of like the one I last posted, only it asks for the final temp. instead of energy...What is the final temp. (in
1. 0 answers
2. 593 views
Ethanol boils at a temp. of 78.29 degrees C. What amount of energy, in joules, is necessary to heat to boiling and then
1. 0 answers
2. 857 views
Recall that on some roads, a skid mark of length L ft. indicates that a car was traveling at least s mph, where s is approx. 2
1. 1 answer
2. 508 views
A rock salt (NaCl), ice, and water mixutre is used to make homemade ice cream. How many grams of rock salt must be added to
1. 0 answers
2. 2,399 views
I have to match the items to the statements below, and I'm stuck! My answers are in parentheses, but I know that some of them
1. 0 answers
2. 698 views
I have to match the items to the statements below, and I'm stuck!A Dilute B Unsaturated C Saturated D Supersaturated 1. Sodium
1. 0 answers
2. 644 views
Question 1 : We would like to test 3 different treatments on a particu-lar type of plant. A worker at the local greenhouse will
1. 0 answers
2. 600 views

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