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Harbor seals, like many animals, determine the direction from which a sound is coming by sensing the difference in arrival times at their two ears. A small difference in arrival times means that the object is in front of the seal; a larger difference means it is to the left or right. There is a minimum time difference that a seal can sense, and this leads to a limitation on a seal's direction sense. Seals can distinguish between two sounds that come from directions 3o apart in air, but this increases to 9o in water.
Explain why you would expect a seal's directional discrimination to be worse in water than in air.
Two children pull in opposite directions on a toy wagon of mass 9kg. One exerts a force of 18 N and the other exerts a force of 46 N
A 0.30 kg mass is suspended on a string. In equilibrium the mass stretches the spring 2.0 cm downward. Calculate the total energy of the system
Physics, calculate magnitude of potential difference +-
Jane and Jon, with masses of 50 kg and 60kg, respectively,stand on a frictionless surface 10m apart, What is JOhn's acceleration
two blocks are pressed together, compressing a spring, the system is then released from rest on a level, frictionless surface. the spring is not attacthed to either block and drops to the surface after it is expanded. i need to demonstrate whether th..
Car 1 has 2 times the mass of car 2, but only 0.3 as much kinetic energy. What is the ratio between the speeds of the two cars (v1/v2)
make Use of a 9.81 m/s^2 for the magnitude of the acceleration due to gravity.
While walking around your apartment in socks you shuffle your feet across the floor and realize that you've accumulated a positive charge of +9 nC (9 x 10^-9 C)
An electromagnetic wave is propagating towards the west. At a certain moment the direction of the magnetic field vector associated with this wave points vertically up. The direction of the electric field vector of this wave options:
Two stones are thrown vertically upward from the ground, one with three times the initial speed of the other. how high (in terms of H) will the faster stone go
An iron bolt of mass 70.0 g hangs from a string 35.2 cm long. The top end of the string is fixed. Find the magnetic force on the bolt
An electric motor rotating a workshop grinding wheel at a rate of103 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude1.50 rad/s2. How long does it take for the grindingwheel to stop?
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