Answer:
solved
Explanation:
From the FBD in the attachment we can write that
N+ 80 sin37°= mg
N= 46×g-80×sin37=498.94 N
also, ma= 80×cos37°
a= 80×cos37°/46= 1.3889 m/s^2
also, 10m = 0.5at^2
put a= 1.3889 m/s^2
t= 2.095 secs
d) the speed v =at
v= 1.3889*2.095= 2.91 m/s^2
Answer:
b. The final temperature of the coffee cup will be higher than 25°C but less than 75°C.
Explanation:
We know in thermal equilibrium.
Heat loss by one object = Heat gain by other object.
Now, heat is loss by the object whose temperature is higher than other because heat travels from high temperature to other.
And the object who gain heat its temperature increases till both body reach same temperature.
In this case, water loss heat, therefore its temperature decreases.
Similarly , metal block is at low temperature so its temperature increases.
Therefore , both water and metal block must have temperature less than and
to have thermal equilibrium.
The weight will be 1/6 time less on the moon than earth.
<h2>Explantion</h2>The varies the size of the object the effects the of gravitational pull will vary. As the moon is smaller than the size of the earth, then it has less gravitational pull. The value of gravity is on the earth but in the moon, it will reduce 1/6 times and will be
. The weight change by change the planet but mass remain same. In the given question the weight is 150g. So,
at earth
by rearranging
On moon
The change in mass was because of gravitational pull