Answer:
Average speed will be 30.30 m/sec
Explanation:
We have distance d = 10 km
Time to reach university to home = 20 min
We know that 1 hour = 20 min
So 20 minute
We have to find average speed
We know that distance = speed × time
So
So the average speed will be 30.30 m/sec
Answer:
The right answer is ball b
Explanation:
I hope it is helpful for you
because when ball b knocking bricks over than it will not able to come back
Answer:
85 K
Explanation:
T₀ = initial temperature of the gas = 77 K
T = final temperature of the gas = ?
n = number of moles of monoatomic gas = 1.00 mol
R = universal gas constant = 8.314
c = heat capacity at constant volume = (1.5) R = (1.5) (8.314) = 12.5
Q = Amount of heat absorbed = 100 J
Amount of heat absorbed is given as
Q = n c (T - T₀)
100 = (1) (12.5) (T - 77)
T = 85 K
Savings is inversely related to expenditure when the income is constant. <span>A more technical example is current is inversely proportional to the resistance in the circuit provided the voltage is constant. When the resistance is high, current is low, and vice-versa.</span>
Answer:
20 ms¯¹
Explanation:
3. Determination of the final velocity
From the question given above, the following data were obtained:
Time (t) = 4 s
Acceleration (a) = 5 ms¯²
Initial velocity (u) = 0 ms¯¹
Final velocity (v) =?
Acceleration is simply defined as the change in velocity per unit time.
Mathematically, it can be expressed as:
Acceleration (a) = final velocity – Initial velocity / time
a = v – u / t
With the above formula, we can obtain the final velocity of the car as follow:
Time (t) = 4 s
Acceleration (a) = 5 ms¯²
Initial velocity (u) = 0 ms¯¹
Final velocity (v) =?
a = v – u / t
5 = v – 0 / 4
5 = v / 4
Cross multiply
v = 5 × 4
v = 20 ms¯¹
Thus, the final velocity of the car is 20 ms¯¹