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Svetradugi [14.3K]
3 years ago
9

Urgent pls help

Physics
2 answers:
Firdavs [7]3 years ago
8 0

Answer:

the answer is d. because water has a higher specific heat capacity than sand

Ede4ka [16]3 years ago
3 0
In my opinion,Sand has more specific heat than water.
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An unknown mass is on a flat frictionless surface and a 2 kg object is attached to it with a string going over pulleyt mounted t
Lynna [10]

Answer:

Explanation:

F=ma

F in this case is the gravity acting on the 2kg object. Acceleration of gravity is 9.8 m/s^2. SF=ma, so

F = 2kg*(9.8 m/s^2) = 19.6 N

Now use this force to determine the mass of the object on the table:

F=ma

19.6 N (1N=kg*m/s^2) = m*(1.8 m/s^2)

m = 10.89 kg

3 0
3 years ago
Far from any other masses, two masses, m1 and m2, are interacting gravitationally. The value for the mass of m1 suddenly doubles
NNADVOKAT [17]
<span>It also doubles The gravitational force between two masses is expressed as: F = G*m1*m2/r^2 where F = Force between the two masses m1 = Mass of object 1 m2 = Mass of object 2 r = distance between centers of object 1 and object 2 G = Gravitational constant The exact values of G, m1, m2, and r don't matter since all except for m1 is held constant. And when m1 suddenly doubles, the force attracting the two object to each other also doubles.</span>
5 0
4 years ago
Alex has to pick up a 20 N stack of documents and raise them 5 meters from the floor.
Serjik [45]

Answer:

1.Work done=100 joules

2.potential energy

3.kinetic energy

Explanation:

W=Force x distance

w= 20 N x 5 M

W = 100 JOULES

6 0
4 years ago
To which layer can geologists apply the principle of faunal succession to determine the age of the layer?
BigorU [14]
A. Layer C is the right answer out of all the choices
5 0
4 years ago
Plzzzzz help me swear will mark u brainiest
photoshop1234 [79]

Answer:

B

Explanation:

4 0
3 years ago
Read 2 more answers
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