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calculate a dog running at a speed of 32 km/ hr jumps into stationary canoe on the river in to a stationary canoe the mass of the dog is 14kg the canoe and roller is 160 kg lets assume the water force is frictionless wgat is the speed of the canoe after collision
NASA going to launch a rocket to Mars, with the rocket blasting off from the Earth when the Earth and Mars are aligned along a straight line from the Sun. If the Mars is now 60° ahead of the Earth in its orbit around the sun, when should NASA launch the rocket? All the planets orbit the sun in the same direction and 1 year on Mars is 1.9 Earth-years. Assume circular orbits for the Earth and the Mars.
A 5m long straight metal rod is kept on a horizontal table along east-west direction.
Assuming earth’s magnetic field as 0.4 G and angle of dip as 600
. Calculate induced emf in
the rod when it is moved with a velocity of 10 m/s along the direction of
(i)horizontal component of earth’s magnetic field
(ii) vertical component of earth’s magnetic field
In air an object weight 15N. When immersed in water it weight 12N. When immersed in another liquid it weight 13N. Calculate the density of the object and that of the other liquid.
A spacecraft passes a spherical space station. Observers in the spacecraft measure the station’s minor axis as 145 km and the major axis as 190 km.
(a) How fast is the spacecraft travelling relative to the space station?
(b) Why does the station not look like a sphere to the observers in the spacecraft?
A stone ot mass 2.0 kg to pulled a long a horizontal path by a rope which makes an angel 60° with the horizontal neglecting frictions. Calculate the tension in the rope of the body accelerate uniformly at 5.0 m5-2
a body starts from rest and travels distances of 120, 300 and 180m in successive equal time interval of 12s. during each interval the body is uniformly accelerated. i. calculate the velocity of the body at the end of each successive time interval, ii. sketch a velocity time graph for the motion
A man walk from a point A and walk a distance of 8.0 km due northeast to point B from B he then walks 4.0 km due southeast to point x. Calculate the shortest distance between And x.
A man start from a point A and walk a distance of 8.0 km due northeast to point B from B he then walks 4.0 km due South East to point x. Calculate the shortest distance between A and x.
the period of a simple pendulum of length 80cm was found to have doubled when the length of the pendulum was increades by x. calculate x
