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a gas in a cylinder is held at a constant pressure of 220times105 pa and is cooled and compressed from 170m3 to 140m3
helium the second most abundant element in the universe can exist as a monatomic gas at a pressure of 11times105 pa a
a small object of mass 290 g and charge -17 microc floats in a uniform electric field what is the magnitude and
the atmosphere on mars is almost all carbon dioxide co2 and has a pressure of about 69times102 pa much less than that
a circular pond of radius 12 m has a layer of ice 025 m thick on a spring day the temperature of the water below the
a spring-loaded toy gun is used to shoot a ball of mass straight up in the air as shown in the figure the spring has
the nucleus of 8be which consists of 4 protons and 4 neutrons is very unstable and spontaneously breaks into two alpha
a box of weight w 2 n accelerates down a rough plane that is inclined at an angle 30 degrees above the horizontal the
a scientific instrument weighs 852 n in the earths surface and weighs 322 n in the surface of mercurywhat is the
a 18--tall object is 22 to the left of a lens with a focal length of 11 a second lens with a focal length of 48 is 54
an insect 375 mm tall is placed 200 cm to the left of a thin planoconvex lens the left surface of this lens is flat the
a point source of light illuminates an aperture 190 away a 115 -wide bright patch of light appears on a screen 140
a large aquarium has portholes of thin transparent plastic with a radius of curvature of 195 m and their convex sides
a luminous object is 500 m from a wall you are to use a concave mirror to project an image of the object on the wall
an particle with a charge value of 021 c is moving in the presence of an electric field of 55 nc what force does the
a 20 m conductor is formed into a square and placed in the horizontal xy-plane a magnetic field is oriented 300 degrees
a ball experiences a change in momentum of 125 nmiddotsa what is the impulse acting on the ballkgmiddot msb if the time
a plane surface with area 15 m2 is placed in a uniform magnetic field of 60 t that is oriented at an angle of 20
jennifer who has a mass of 500 kg is riding at 350 ms in her red sports car when she must suddenly slamon the brakes to
a small weight hangs from a string attached to the rearview mirror of a car accelerating at the rate of 117 ms2 what
a 5 10 and 15 resistor are connected in parallel and the combination connected in parallel to a 15 v battery with
a man wishes to vacuum his car with a canister vacuum cleaner marked 550 w at 120 v the car is parked far from the
unpolarized light is incident on three polarizers the first making an angle of 0 degrees with the vertical the second
a block is released from rest at the top of a frictionless ramp inclined plane that makes an angle of 25deg with
a block of mass 50 kg is free to slide on a horizontal frictionless surface a constant force f acting 20deg above the