Physics problems.A compound machine used to raise heavy boxes consists of a ramp and a pulley.The efficiency of pulling a 100-kg box up the ramp is 50%.If the efficiency of the pulley is 90%,what is the overall efficiency of the compound machine?
Physics problems.A compound machine used to raise heavy boxes consists of a ramp and a pulley.The efficiency of pulling a 100-kg box up the ramp is 50%.If the efficiency of the pulley is 90%,what is the overall efficiency of the compound machine?
Physics problems.
A compound machine used to raise heavy boxes consists of a ramp and a pulley.The efficiency of pulling a 100-kg box up the ramp is 50%.If the efficiency of the pulley is 90%,what is the overall efficiency of the compound machine?
Physics problems.A compound machine used to raise heavy boxes consists of a ramp and a pulley.The efficiency of pulling a 100-kg box up the ramp is 50%.If the efficiency of the pulley is 90%,what is the overall efficiency of the compound machine?
90%x50%=45%