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stepladder [879]
2 years ago
10

If s is the specific heat capacity of 4kg water, what is the specific heat capacity of 16kg

Physics
1 answer:
uranmaximum [27]2 years ago
6 0

Answer: d

Explanation: divide it by 4

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What is the acceleration of a 50 kg object pushed with a net force of 500 newtons?
vodomira [7]
Using the formula F=ma
500N=50kg (a)
a= 10 m/s^2
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3 years ago
A piece of paper looks white in both the noonday sun and under moonlight, even though there is less light being reflected off th
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Answer: Brightness consistency

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3 years ago
A 30 g bullet moving a horizontal velocity of 500 m/s comes to a stop 12 cm within a solid wall. (a) what is the change in the b
Sidana [21]
M = 30 g = 0.03 kg, the mass of the bullet
v = 500 m/s, the velocity of the bullet

By definition, the KE (kinetic energy) of the bullet is
KE = (1/2)*m*v²
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Because the bullet comes to rest, the change in mechanical energy is 3750 J.

The work done by the wall to stop the bullet in 12 cm is
W = (1/2)*(F N)*(0.12 m) = 0.06F J

If energy losses in the form of heat or sound waves are ignored, then
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0.06F = 3750
F = 62500 N = 62.5 kN

Answer:
(a) 3750 J
(b) 62.5 kN

7 0
3 years ago
Match each word to it's correct meaning.
Ivan

Answer:

fluid transfer of heat by the motion of the particles of gas or fluid

8 0
2 years ago
Read 2 more answers
ow long must a simple pendulum be if it is to make exactly ten swings per second? (That is, one complete vibration takes exactly
Igoryamba
The period T of a pendulum is given by:
T=2 \pi  \sqrt{ \frac{L}{g} }
where L is the length of the pendulum while g=9.81 m/s^2 is the gravitational acceleration.

In the pendulum of the problem, one complete vibration takes exactly 0.200 s, this means its period is T=0.200 s. Using this data, we can solve the previous formula to find L:
L=g ( \frac{T}{2\pi} )^2=(9.81 m/s^2)( \frac{0.2 s}{2 \pi} )^2=1 \cdot 10^{-3} m=1 mm
4 0
2 years ago
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