Apackage was determined to have a mass of 5.7 kilograms. what's the force of gravity acting on the package on earth?
a. 37.93 n
b. 55.86 n
c. 1.72 n
d. 13.44 n
50 j of work was performed in 20 seconds. how much power was used to do this task?
a. 2.5 w
b. 4 w
c. 0.4 w
d. 24.5 w
a 63 kg object needs to be lifted 7 meters in a matter of 5 seconds. approximately how much horsepower is required to achieve this task?
a. 864.36 hp
b. 1.16 hp
c. 441 hp
d. 0.59 hp
a force of 350 n causes a body to move with an acceleration of 10 m/s2. what's the mass of the body?
a. 98 kg
b. 35 kg
c. 3,500 kg
d. 3,430 kg
which of the following statements is accurate?
a. if an object's velocity remains constant, its acceleration must be increasing.
b. if an object is said to be decelerating, its velocity must be increasing.
c. if an object's velocity decreases, then the object is accelerating.
d. if an object's velocity is changing, it's either experiencing acceleration or deceleration.
Answers: 2
Physics, 22.06.2019 11:00
Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.
Answers: 1
Physics, 22.06.2019 16:00
Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?
Answers: 1
Physics, 22.06.2019 16:30
Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor
Answers: 1
Apackage was determined to have a mass of 5.7 kilograms. what's the force of gravity acting on the p...
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