Person A buys 10 granola bars and 6 cups of yogurt for $18. Person B buys 5 granola bars and 4 cups of yogurt for $9.50. Find the cost of each item.
A crate is pulled to the right with a force of 94.4 N, to the left with a force of 128.6 N, upward with a force of 509 N, and downward with a force of 246.8 N.What is the net external force in the... more
initial/final kinetic energy / work
The velocity of a car of mass 1200kg changes of 10 m/s to 60 m/s. a. Calculate the initial kinetic energy (K.Ei) of the car. b. Calculate the final kinetic energy (K.Ef) of the car. c. Write down... more
According to Newton's Law of Universal Gravitation, which of the following would cause the attractive force between a planet and the Sun to be doubled?
A ball with an initial velocity of 2 m/s rolls for a period of 3 seconds. If the ball is uniformly accelerating at a rate of 3 m/s2, what will be the ball’s final velocity?
Physics energy questions
1.What is the potential energy of a 300 kg boulder that sits on the edge of a 25 m tall cliff?2.A person eats an 199,000 J snack before working out. If the person uses all of their eaten energy to... more
What is the slope of a line perpendicular to the line whose equation is 20x-2y=6? A 1/10 ,B - 1/10 ,C -10, D 10
The volume of Neptune is on the order of 10 ^ 23 m ^ 3 . (a) What is this in cubic kilometers (km^ 3 ) ? (b)What is it in cubic miles (mi ^ 3) ? (c) What is it in cubic centimeters (cm^ 3 ) ?
In ΔKLM, the measure of ∠M=90°, KL = 93 feet, and MK = 60 feet. Find the measure of ∠L to the nearest degree.
Two sphere of same metal weight 1kg and 7 kg the radius of smaller sphere Is 3 CM the two sphere are melted to form a single big sphere find the diameter of new sphere
During a checkers game, there are 16 pieces left. The ratio of black to red is 3 : 5. How many black pieces are on the board?
Half of Frank's weight added to Gary's weight equals to 234 pounds. Half of Gary's weight added to Frank's weight is equal to 222 pounds. How much does Gary weigh?
The length of a rectangle is 2 m more than three times it’s width if the area is 20 m² find the dimensions of the rectangle to the nearest hundredth of a metre
A 57 kg girl skies down a 240 meter frictionless slope. What is her Velocity 100 meters from the bottom? What is her kinetic energy 100 meters from the bottom?
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