Mars has a thinner atmosphere and it is further from the sun.
100 meters =1 km average speed 1km
Answer:
Explanation:
When a certain amount of substance is supplied with a certain amount of energy Q, the temperature of the substance increases according to the equation
where
m is the mass of the substance
C is the specific heat capacity
is the change in temperature
In this problem:
m = 150.0 g is the mass of wood
Q=67,000 J is the amount of energy supplied to the wood
is the increase in temperature of the substance
Therefore, the specific heat capacity is:
Answer:
About 213.33 N
Explanation:
Force can be found using the following formula:
F= w/d
where w is work in Joules (J) and d is distance in meters (m).
We know that the machine does 4800 Joules of work over a distance of 22.5 meters. Therefore,
w=4800 J
d=22.5 m
Substitute these values into the formula.
F= 4800 J/ 22.5 m
Divide 4800 by 22.5
F= 213.333333 J/m
Let's round to the nearest hundredth. The 3 in the thousandth place indicates the 3 in the hundredth place should stay.
F= 213.33 J/m
1 J/m is equal to 1 Newton, or N.
F= 213.33 N
The force exerted by the machine is about 213.33 Newtons