A hydraulic lift has a small piston with a diameter 5.0 cm piston and the large piston with a diameter of 25 cm. What force must be applied on the small piston in order to lift a car on the large piston that weighs 13,000 N?
A. 520 N
B. 5200 N
C. 260 N
D. 2600 N
A. 520 N
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A 1200 kg car is traveling at 4.00 m/s and strikes a wall. The 1200 kg car bounces off the wall with a velocity of 4.00 m/s. If the contact with the wall by the car lasts for 0.100 seconds, then the impulse on the car is
A. 12,400 kg m/s. B. 10,200 kg m/s. C. 9,600 kg m/s. D. 8,400 kg m/s. E. 2,900 kg m/s.
A beam of light in air enters a glass slab with an index of refraction of 1.40 at an angle of incidence of 30.0°. What is the angle of refraction?
A) 20.9° B) 47.5° C) 51.8° D) 30.0° E) 14.9°
The Earth rotates 360 degrees on its axis
twice a day such that the Sub rises in the West and sets in the East. once a day such that the Sun rises in the East and sets in the West. twice a day such that the Sun rises in the East and sets in the West. once a day such that the Sun rises in the West and sets in the East.
Accretion occurred sooner in the inner part of the solar system than it did in the outer regions
Indicate whether the statement is true or false