The specific heat of the substance will be 0.129 J/g°C.
<h3>What is specific heat capacity?</h3>
The amount of heat required to increase a substance's temperature by one degree Celsius is known as specific heat capacity.
Similarly, heat capacity is the relationship between the amount of energy delivered to a substance and the increase in temperature that results.
The given data in the problem is;
Q is the amount of energy necessary to raise the temperature = 3,000.0 j
M is the mass=  0.465 kg.
Δt is the time it takes to raise the temperature.=50°c 
s stands for specific heat capacity=?
Mathematically specific heat capacity is given by;

Hence the specific heat of the substance will be 0.129 J/g°C.
To learn more about the specific heat capacity refer to the link brainly.com/question/2530523
 
        
             
        
        
        
Answer: i can see properly
Explanation:
 
        
             
        
        
        
Answer:
A)  If the paintball stops completely the magnitude of the change in the paintball’s momentum is  
B) If the paintball bounces off its target and afterward moves in the opposite direction with the same speed, the change in the paintball’s momentum is  
C) A paintball bouncing off your skin in the opposite direction with the same speed hurts more than a paintball exploding upon your skin because of the strength exerted is twice than if it explodes.
Explanation:
Hi
A) We use the formula of momentum  , so we have
, so we have 
B) We use the same formula above, then due we have a change of direction at the same speed, therefore the change in the momentum is the double so
 .
.
C) The average strength of the force an object exerts during impact is determined by the amount the object’s momentum changes. therefore
 , as we don't have any data about the impact time but we know momentum is twice, time does no matter and strength is twice too.
, as we don't have any data about the impact time but we know momentum is twice, time does no matter and strength is twice too.