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A force of 10N acts on two blocks on frictionless surface. the first block is 3kg, and the second block is 2kg. what is the acceleration of the system? what force does the 3kg block exert on the 2kg block? what force does the 2kg block exert on the 3kg block?
A satellite is in an elliptical orbit at altitudes ranging from310 to 890 km. Atthe high point it's moving at 7.33 km/s.How fast is it moving at the low point?
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
A 73 trampoline artist jumps vertically upward from the top of a platform with a speed of 4.0. If the trampoline behaves like a spring of spring constant 6.2×104, how far does he depress it.
A 210 g piece of ice at 0°C is placed in 410 g of water at 22°C. The system is in a container of negligible heat capacity and is insulated from its surroundings. How much of the ice melts
A charge q = 2.00 uC is placed at the origin in a region where there is already a uniform electric field E_vec = (100 N/C)i_hat. Calculate the flux of the net electric field through a Gaussian sphere of radius R = 10.0 cm centered at the origin.Is it..
The vertical wall of a small dam is 26 m long and it holdsback a body of water that is 5.7 m deep. Determine the effective point of action of this force
a 196-g aluminum calorimeter contains 582 g of water at 18deg c. a 92-g piece of ice cooled to -18deg c is placed in
When you place a saltshaker 30 cm from your magnifying glass, a real image forms 30 cm from the lens on the opposite side. What is the focal length of the magnifying glass
an ac generator consists of 6 turns of wire. each turn has an area of 0.040m2. the loop rotates in a uniform field
Mars orbits the Sun at a mean orbital radius of 228 Gm (1 GM =109 m) and has an orbital period of 687 d. Earth orbitsthe Sun at a mean orbital radius of 149.6 Gm.
The light shining on a diffraction grating has a wavelength of 490 nm (in vacuum). How many lines per centimeter does the grating have
Light from a laser strikes a diffraction grating that has 4250 grooves per centimeter. Find the wavelength of the laser
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