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A small immersion heater is rated at 950 W. Estimate how long it will take to heat a cup of soup (assume this is 250 mL of water) from 17 degrees C to 77 degrees C.
a spaceshipmo 10000 kg amp lo 42m is observed to be 42.2m long while traveling towards earth. determine the speed of
Find the mechanical energy of a block- spring system having a spring constant of 1.3 N/cm and an oscillation amplitude of 2.4 cm.
A small ball with mass m is attached to a string, which goes over a pulley and makes a small angle swing. find the string tension as a function of the angle
A cricket ball is bowled at a speed of 144 km/hr. suppose the ball diameter is 70 mm and a drag coefficient 0.45, estimate the drag force in newtons which would be acting on the ball.
Each summer along the Oregon coast there is a contest for archers. People line the beaches and wait for a low-flying airplane to pass overhead loaded with goodies.
A microscope has an objective lens with a focal length of16.22 mm and an eyepiece with a focal length of 9.40 mm. what is the actual diameter of the red blood cell
A box is sliding up an incline that makes an angle of 27.7 ° regarding the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.113. The initial speed of the box at the bottom of the incline is 2.27 m/s...
What happens to pressure if the volume is held constant and the temperature of a gas is raised
A child and sled with a combined mass of 55.20 kg slide down a frictionless hill that is 7.84 m high at an angle of 26o from horizontal. The acceleration of gravity is 9.80 m/s2. If the sled starts from rest, what is its speed at the bottom of hil..
A person who weighs 645 N is riding a 94.9 N mountain bike. what is the area of contact between each tire and the ground
An electron is accelerated to a speed where its total energy is 169 times larger than its rest energy. What is the speed of the electron in terms of the speed of light
We're doing a buoyancy lab and this equation is derived using the apparent mass of a sinker, calculate the density of the cylinder of wood
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