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Find the work done by the force?
A constant force F=<-1, 2, -5> acts on a particle as it moves from A(2, 4, 1) to B(-2, 1, 3). Find the work done by the force. I have trouble for finding the dot products.
What was the ball's initial speed?
A spring gun at ground level fires a golf ball at an angle of 45 degrees. The ball lands 10 m away. a) What was the ball's initial speed? b) For the same initial speed, find the two firing...
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physics projectile question
a man on 10m high balcony throws a ball at a 45(degree) angle above the horizontal with a speed of 10m/s. by what distance from a target, located on the ground at a distance of 15m from the base of...
Light of wavelength 2400 x 10-10 m in air will become light of wavelength in glass (µ = 1.5) equal to
Light of wavelength 2400 x 10-10 m in air will become light of wavelength in glass (μ = 1.5) equal to A. 1600 x 10-10 m B. 7200 x 10-10 m C. 1080 x 10-10 m D. none of these
A 6.1kg bowling ball and a 7.2kg bowling ball rest on a rack 0.75 m apart. What is the force of gravity exerted on each of the balls by the other ball? G= Univ
A 6.1kg bowling ball and a 7.2kg bowling ball rest on a rack 0.75 m apart. What is the force of gravity exerted on each of the balls by the other ball? G= Universal Gravitational constant = 6.67...
I have a physics question
A soccer ball is kicked vertically from the ground level with a speed of 20m/s. At what height is the gravitational potential energy of the ball maximum?
Can anyone help me with these science questions on Astronomy: Earth and Space Systems/ The Solar System?
Most of the frozen ice in a comet's ______ vaporizes after the comet's many trips around the sun. The Sun produces energy by fusing hydrogen atoms, into _____ atoms in its core. Planets...
whats the color of the sky?
My friend and i were making a bet to see what is the color of the sky, his parents said they don't know. Neither do mine, so we are trying know,whats the color of the sky
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In .....................................................
2. One of the geo-stationary satellites of India is vertically above A. New Delhi B. Mumbai C. Allahabad D. None of these
2. One of the geo-stationary satellites of India is vertically above A. New Delhi B. Mumbai C. Allahabad D. None of these
In Physics, how do I go from a velocity vs. time graph to a position vs. time graph?
I have the velocity vs. time graph already, I just need to change it to position vs. time.
What is a black hole?
I'm confused on what a black hole is and how they work.
what is newtons second law
what is newtons second law in physics
Physcis question
Catching a wave, 77-kg surfer starts with a speed of 1.3 m/s, drops a height of 1.65m, and ends with a speed of 8.2 m/s. How much non conservative work was done on the suffer?
physcis question
Two blocks, each of mass m, are connected on a frictionless horizontal table by a spring of force constant k and equilibrium length L. Find the maximum and minimum separation between the two blocks...
What's the difference between speed and velocity?
What is the difference between speed and velocity?
how does surface area affect rate of active transport?
factors affecting rate of active transport...
Physics Question
A 1.2KG block is held against a spring of force constant 1.0x104N/m, copressing it a distance of 0.15m. How fast is the block moving after it is released and the spring pushes it away?
Physics Questions
A 0.14kg pinecone falls 16m to the ground, where it lands with a speed of 13m/s. With what speed would the pinecone have landed if there had been no air resistance?
Physics question
Suppose the two speeds of a two canoes after they are pushed apart are 0.60 m/s for canoe 1 and 0.45 m/s for canoe 2. if the mass of canoe 1 is 350kg, what is the mass of canoe 2?
