The change of the copper temperature if a 0.6g piece of copper is heated and fashioned into a bracelet with 62,100 J amount of energy transferred is 265.4°C.
<h3>How to calculate change in temperature?</h3>
The change in temperature of a metallic substance in a calorimetry experiment can be calculated using the following formula:
Q = mc∆T
Where;
- Q = quantity of heat absorbed or released
- m = mass of copper
- ∆T = change in temperature
- c = specific heat capacity
According to this question, a 0.6g piece of copper is heated and fashioned into a bracelet The amount of energy transferred by heat to the copper is 62,100 J.
62100 = 0.6 × 390 × ∆T
62100 = 234∆T
∆T = 62100/234
∆T = 265.4°C
Therefore, the change of the copper temperature if a 0.6g piece of copper is heated and fashioned into a bracelet with 62,100 J amount of energy transferred is 265.4°C.
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Use the formula n = c / v, where c is the speed of light and v is the speed of light in the environment, that is, use the speed in brackets and the correct answer will be the one that will be the smallest result
Answer:
Part a)
Part b)
Part c)
Explanation:
Velocity just before it strike the ground is given as
since there is no friction in horizontal direction so its speed in horizontal direction will remain same
Part a)
velocity in X direction
time taken by the skier to reach the ground is given as
now in the same time it will cover vertical distance
so magnitude of initial speed is given as
Part b)
Direction of velocity
Part c)
Now in order to find the height of the ramp we can find the vertical displacement
Answer:
The new speed of the ball is 176.43 m/s
Explanation:
Given;
mass of the ball, m = 7 kg
initial speed of the ball, u = 5 m/s
applied force, F = 300 N
time of force action on the ball, t = 4 s
Apply Newton's second law of motion;
where;
v is new speed of the ball
Therefore, the new speed of the ball is 176.43 m/s
The negative charges and positive charges in the wire are pushed in the opposite directions by the magnetic field