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Raindrops make an angle ? with the vertical when viewed through a moving train window (Fig). If the speed of the train is vr, what is the speed of the raindrops in the reference frame of the Earth in which they are assumed to fall vertically?
Transverse waves on a string have wave speed , amplitude , and wavelength . The waves travel in the -x direction, andat the end of the string has its maximum upwarddisplacement. Find the frequency of these waves.Find the wave number of these waves..
Suppose you consume 2000 Cal of food per day. Note that a food Calorie, with capital C, is one kilocalorie: 1 Cal = 1 kcal. How many watts of heat and work can you do
Jim-bob desires to travel 61.3 km directly north. However, he gets confused and ends up 35.5 km directly east of his starting point. how far does he need to travel
A large crate is pulled along a horizontal path at a constant speed by a cable that is inclined at an angle of 20° with respect to the horizontal. How far will the crate move in 10 seconds
A 41 g puck moving at 2.00 m/s hits a stationary 88 g puck and they under go an elastic collision. What is the angle between their velocities
A patient has a far point of 29.5 cm and a near point of 23.9 cm. What power (in diopters) should be prescribed to correct the patient's vision using contact lenses
answer the following questionsa why does a paramagnetic sample display greater magnetisation for the same magnetising
A 16 g rifle bullet traveling 180 m/s buries itself in a 3.5kg pendulum hanging on a 2.7 m long string, which makes the pendulum swing upward in an arc. find the horizontal component of the pendulum's maximum displacement.
An electron beam is deflected upward through 3.23 mm while traveling in a vacuum between two deflection plates 11.6 mm apart, What is the kinetic energy of each electron when it leaves the space between the plates
q1. a 4.5 kg block starts at rest and slides a distance d down a frictionless 32.0 degree incline where it runs into a
a fire hose ejects a stream of water at an angle of 34.1deg above the horizontal. the water leaves the nozzle with a
question if barium needs a minimum frequency of 6.07x1014 s-1 to eject electrons calculate the kinetic energy of the
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