subject
Physics, 03.12.2020 21:20 brennarfa

Which change in an object would increase the force needed to move the object? А.
decreasing the velocity of an object
B
increasing the volume of an object
с
decreasing the mass of an object
D
increasing the mass of an object

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 07:30
Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?
Answers: 1
question
Physics, 22.06.2019 18:30
Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above
Answers: 2
question
Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
question
Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
You know the right answer?
Which change in an object would increase the force needed to move the object? А.
decreasing t...
Questions
question
Physics, 25.08.2020 16:01
question
History, 25.08.2020 16:01
question
Mathematics, 25.08.2020 16:01
question
Chemistry, 25.08.2020 16:01
question
Social Studies, 25.08.2020 16:01
question
Mathematics, 25.08.2020 16:01
Questions on the website: 13722362