a charge of 4.5 times 10 to the negative 5 C is placed in an electric field with a strength of 2.0 times 10 to the 4 N over C. i
1 answer:
You might be interested in
Answer:Zero
Explanation:
Given
mass of ball
If the ball is thrown upward then at maximum point velocity of ball is zero because ball is no longer able to move upward
Momentum(P) of a particle is given by
Therefore at the highest point momentum is zero .
Answer:
.
Explanation:
Assume that his calorimeter is sufficiently effective, such that no heat had escaped to the surroundings. Heat from this solution would be absorbed by either
- the solution, or
- the coffee cup.
Temperature change: .
Only the specific heat capacity (per unit mass) of the solution is given. Both the mass of the solution and the temperature change will be required for determining the energy change. Start by finding the mass of the solution.
.
Calculate the amount of heat absorbed from the specific heat:
.
The heat capacity of the coffee cup is given. Only the temperature change will be required for finding the amount of heat absorbed.
.
Find the sum of the two parts of heat. Round to three significant figures as in the heat capacity of the coffee cup and the density of the solution.
.