Answer:
B) carry on further discussion, using many trials if experimentation is needed.
Explanation:
To know if the procedure is the best, the hypotheses raised there must be verified in many ways, choosing experiments that do not provide us with ambiguous or incomplete results. It is very important that any other person can repeat it, since a scientific discovery is not valid until another scientist has replicated it.
Answer:
B
Explanation:
The magnitude of the average force that the brakes exert the car is 6,000 N.
The given parameters;
The magnitude of the average force that the brakes exert the car is calculated as follows;
W = Fd
where;
Make "F" the subject of the formula, to determine the magnitude of the average force of the brake.
Thus, the magnitude of the average force that the brakes exert the car is 6,000 N.
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Question 7 options:
Gravitational potential energy
Chemical potential energy
elastic potential energy
Mass kinetic energy
of 20 m/s, what is the centripetal force acting on the car?
O
A. 6118 N
O
B. 1300 N
O C. 7982 N
O D. 305.9 N
SUBMIT
Answer:
6118N
Explanation:
Answer: Radio waves is a type for wave that is used to transmit television and radio programmes, while microwaves can be used for phone communication.
Explanation: Radio waves and microwaves are types of electromagnetic radiation that has the longest wavelengths and the lowest frequency and it carries the least amounts of energy. This causes it to interact with mostly nothing as it travels, therefore it is just easier to transmit information as there is no disturbance in the transmittion.