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planet x is 347 times more massive than earth and its radius is 103 times earths radius how many times more would you
a tennis player receives a shot with the ball 00600 kg traveling horizontally at 560 ms and returns the shot with the
a satellite is in a circular orbit around the earth the period of the satellite is 254 hr calculate the radius of the
a skier starts from rest at the top of a hill that is inclined at 102deg with the horizontal the hillside is 150 m long
a 290 kg child on a 100 m long swing is released from rest when the ropes of the swing make an angle of 310deg with the
the task is to design a rocket which will accelerate a payload of mas 100 kg from a velocity of 0 ms to 6000 ms in
water is flowing in a horizontal pipe of variable cross section where the cross-sectional area is 110times10-2 m2 the
a rectangular fish tank measures 25 cm by 70 cm by 40 cm high the tank is filled with water to a depth of 37 cmwhat is
a swimming pool is 50 m long by 23 m wide and is less deep at one end than at the other the depth at the shallow end is
a washer is constructed from soft steel density p 79bull103 kgm3 its inside and outside dimensions are 200 cm and 330
an early method of measuring the speed of light makes use of a rotating slotted wheel a beam of light passes through
a pulsar is a rapidly rotating neutron star that emits a radio beam the way a lighthouse emits a light beam we receive
a 500 m long uniform ladder leans against a smooth wall and its base rests on a rough floornbsp the ladder has a mass
an electron is released from rest in an electric field of 213 x 10-10 nc pointing to the right after the electron has
a 25 ohm resistor at steady state draws a current of 10 amperes its temperature is 310 k the temperature of the
what is the entropy change of the gas heated in a steady-flow process at approximately atmospheric pressurea when 800
a 1500kg car moving at 40kmhr is brought to a sudden stop if all the cars kinetic energy is dissipated in heating its
a car has a total mass of 1800kg the volume of air space in the passenger compartment is 500m3 the volume of the motor
an ideal gas cp 72r is heated in a steady-flow heat exchanger from 70degc to 190degc by another stream of the same
a carnot engine receives 250 kj s-1 of heat from a heat-source reservoir at 525c and rejects heat to a heat-sink
liquid isobutane is throttled through a valve from an initial state of 360 k and 4000 kpa to a final pressure of 2000
estimate the change in enthalpy and entropy when liquid ammonia at 270ok is compressed from its saturation pressure of
to determine the center of mass of her body a student lies on aplank of mass m10 kg the plank is supported by two
1 a wave in which the disturbance is perpendicular to the direction of travel of the wave is asemi-harmonic
an automobile battery has an emf of 1260 v and an internal resistance of 0084 0 the headlights together have an