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babunello [35]
3 years ago
5

Ice floats on water but iron nail sinks in it why give reason?​

Physics
1 answer:
levacccp [35]3 years ago
4 0

Explanation:

If you like my answer than please mark me brainliest thanks

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A car has a kinetic energy of 103kJ.
sergij07 [2.7K]

Answer: 1200kg

Explanation:

KE = (1/2)mv^2

103kJ = 103000J

103000J = (1/2) * m * (13.1m/s)^2

Solve for m

5 0
3 years ago
In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment a 4.32 x 104-m length of wire
elena55 [62]

Answer:

Explanation:

Length, l = 4.32 x 10^4 m

speed, v = 7.07 x 10^3 m/s

magnetic field, B = 5.81 x 10^-5 T

The formula for the motion emf is given by

e = B x v x l

e = 5.81 x 10^-5 x 7.07 x 10^3 x 4.32 x 10^4

e = 17745.1 V

3 0
3 years ago
A train moves uniform velocity of 36km/h for 15 sec.find distance
vesna_86 [32]

Answer:

S = V × t

Explanation:

first convert 36km/h to m/s

36km/h=36*5/18=180/18=10m/s

d =s*t

=10*10=100m

5 0
2 years ago
Help Me Please !!!!​ Correct Answer's Only !!!!
lisabon 2012 [21]

Answer:

Wrong answer

Explanation:

3 0
3 years ago
Read 2 more answers
25 POINTS ------------------ (usatestprep)
Airida [17]

Answer:

D) The heavier ball will have a higher temperature because the change of temperature is inversely proportional to mass.

Explanation:

As stated in the problem, the amount of heat released by each ball is

Q=mC_p \Delta T

where

m is the mass of the ball

Cp is the specific heat of iron (so, it is equal for both balls)

\Delta T is the change in temperature of each ball

In this problem, we are said that the amount of heat released by the two balls, Q, is the same. Cp is also the same: this means that the product m\Delta T must be the same for the two balls. So, the mass and the change in temperature are inversely proportional: therefore, the heavier ball will have a smaller change in temperature. And since both balls starts from the same temperature, 100 C, this means that the heavier ball will reach a higher temperature than the lighter ball.

6 0
3 years ago
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