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Physics
Physics
College
Bumper car A (296 kg) moving +3.74 m/s makes anelastic collision with bumper car B (222 kg) moving+1.85 m/s. What is the velocity of car A after thecollision?Use the formula to find the final velocity of car A.Bumper Car Am = 296 kgVi = 3.74 m/sm - m)i+m1m2Vf = (mBumper Car Bm = 222 kgV2i = 1.85 m/s(m2m)Vi = [?] m/sm + m2m + m2Remember: right is +, left is -.
Physics
High School
Jack is testing how sound travels. Damon stood on the opposite side of the room and whispered a sentence to him. Then, jack held a balloon to his own ear as damon whispered the sentence to him again. Jack heard the sentence better the second time. How did the balloon affect the sound of damon's whisper?.
Physics
High School
When forces are not in equilibrium (unbalanced) the object's can be described as __________.
Physics
High School
(a) your pendulum clock which advances 1.0 s for every complete oscillation of the pendulum is running perfectly on earth at a site where the magnitude of the acceleration due to gravity is 9.80 m/s2. you send the clock to a location on the moon where the magnitude of the acceleration due to gravity is 1.65 m/s2. does the clock run fast or slow on the moon?
Physics
High School
Need help! Thanks lots!
Physics
High School
With respect to saving energy, what aspect of using two-sided printing was discussed in class as providing the most signifiant benefit?
Physics
High School
Describe how the law of inertia relates to the following scenario: you are riding in a car, and your body is thrown to the right as the car turns to the left.
Physics
High School
A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 8.0 m from the takeoff point.If the kangaroo leaves the ground at a 22 angle, what is its takeoff speed?What is its horizontal speed?
Physics
High School
What is the wavelength of a radio wave with frequency 8.95 x107 Hz?
Physics
High School
a simple pendulum consisting of a bob of mass m attached to a string of length l swings with a period t.
Physics
College
An egg is attached to a parachute. It is dropped (starting from rest) from a height of 16 m. The parachutes slows it's acceleration downward to 0.4 m/s^2. It can hit the ground at a velocity of 0.8 m/s without cracking. Does the egg crack when it hits the ground?A) YesB) NoPLEASE HELPPPPPP ME
Physics
High School
A nurse applies a rightward horizontal force on a bed with a mass of 152 kg. What is the magnitude of the normal force acting on the bed?.
Physics
High School
Noise cancelling headphones are a kind of headphones which decrease the amount of background noise that get into your ears when you wear them. On what physical phenomena do these headphones depend on?
Physics
High School
The threshold of hearing is defined as the minimum discernible intensity of the sound. it is approximately 10^12w/m^2. Find the distance d from the car at which the sound from the stereo can still be discerned. assume that the windows are rolled down and that each speaker actually produces 0.06 w of sound, as suggested in the last follow-up comment.
Physics
High School
A tennis ball is hit with a tennis racket. Compared to the magnitude of the force of the racket on the ball, the magnitude of the force of the ball on the racket is.
Physics
High School
A family car has a mass of 1400 kg. In an accident it hits a wall and goes from a speed of 27 m/s to a standstill in 1. 5 seconds. Calculate the force involved.
Physics
High School
How does mass affect the amount of kinetic energy in a moving object? Explain how you know by stating your claim, the evidence for your claim, and your reason why this evidence supports your claim.
Physics
High School
Currently failing the classDistinguish between vector and scalar quantities providing examples of each
Physics
College
about two thirds of the nearby spiral galaxies (which we can study in more detail) don't have a round central bulge, but instead show
Physics
High School
What is K in elastic potential energy formula?
Physics
High School
treasure searching pirates walked due north for 2 hours through 4 miles of swamp. afterwards, they stopped for an hour of rest before continuing eastward for another 4 hours to cross 5-miles of jungle. calculate the average velocity in miles per hour of the above pirates. do not enter the unit with your answer.
Physics
High School
Find the binding energy of carbon-12 per nucleon. The mass of a proton is 1.007276 u, of a neutron 1.008665 u, and of carbon 11.996706 u.
Physics
High School
which phenomenon that goes unexplained by lewis structures is solved by applying molecular orbital theory?
Physics
High School
when the lobes of two p orbitals are in the same phase and overlap side-by-side, the orbital that is formed has a _____ dissociation energy compared to the molecular orbital formed from the out-of-phase direct overlap of the two p orbitals.
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