Physics, 03.02.2020 20:04, Conpolice1309
Aboy uses a force to keep a rock from falling. (he is carrying the rock.) some forces, like this one, act only when two objects are touching. which force usually acts between objects that are not touching?
a. friction
b. gravity
c. pulling
d. pushing
Answers: 3
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An ambulance emits a frequency of 450 hz from its siren. what frequency is heard by a man as the ambulance moves toward him? less than 450 hz more than 450 hz 450 hz 0 hz
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F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?
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What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition
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Physics, 22.06.2019 07:30, babygreg2001p97abr
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
Aboy uses a force to keep a rock from falling. (he is carrying the rock.) some forces, like this one...
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